feat: Docker and helm charts

Session.Close now closing its own accepted conn (from the prior fix wave)
made net.ErrClosed on the guacd-side reader indistinguishable from a real
remote failure, so a normal browser-tab close could race the handler's
defer and intermittently log console.proxy_failed on a healthy session.
Add a closing flag, set before Close's sync.Once body actually tears
anything down, that setReason respects -- a deliberate local teardown can
no longer produce or race in a failure reason, while Close's own explicit
reason argument still wins normally.

.claude/settings.json

@@ -0,0 +1,24 @@
+{
+  "hooks": {
+    "PreToolUse": [
+      {
+        "matcher": "Bash|Grep",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "C:/Python314/Scripts/graphify.EXE hook-guard search"
+          }
+        ]
+      },
+      {
+        "matcher": "Read|Glob",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "C:/Python314/Scripts/graphify.EXE hook-guard read"
+          }
+        ]
+      }
+    ]
+  }
+}

.gitattributes

@@ -0,0 +1 @@
+graphify-out/graph.json merge=graphify

.gitea/workflows/server-deploy.yml

@@ -77,15 +77,17 @@ jobs:
                   # generated pb is committed under server/, but a proto change
                   # that someone regenerates in the same push should not depend
                   # on that ordering.
-                  flag server    '^(server/|shared/|proto/|go\.work)'
+                  flag server    '^(server/|shared/|proto/|default_steps/|go\.work)'
                   flag sitesvc   '^(sitesvc/|shared/|go\.work)'
                   flag admin     '^(admin/|shared/|go\.work)'
 
-                  # The three Next images use their own directory as the build
-                  # context, so nothing outside it can affect them.
+                  # The three Next images and the docs site use their own
+                  # directory as the build context, so nothing outside it can
+                  # affect them.
                   flag web       '^web/'
                   flag site      '^site/'
                   flag adminsite '^adminsite/'
+                  flag docsite   '^docsite/'
 
             - name: Log in to registry
               run: |
@@ -106,7 +108,6 @@ jobs:
               run: |
                   IMAGE="${{ vars.DOCKER_HOST }}/${{ github.repository_owner }}/vantage/web:latest"
                   docker build \
-                    --build-arg NEXT_PUBLIC_API_URL="${{ vars.API_URL }}" \
                     --build-arg NEXT_PUBLIC_HQ_URL="${{ vars.HQ_URL }}" \
                     -t "$IMAGE" \
                     -f web/Dockerfile web/
@@ -147,6 +148,20 @@ jobs:
                   docker build \
                     --build-arg NEXT_PUBLIC_ADMIN_API_URL="${{ vars.ADMIN_API_URL }}" \
                     --build-arg NEXT_PUBLIC_ADMIN_ENV="${{ vars.ADMIN_ENV }}" \
+                    --build-arg NEXT_PUBLIC_PADDLE_CLIENT_TOKEN="${{ vars.PADDLE_CLIENT_TOKEN }}" \
+                    --build-arg NEXT_PUBLIC_PADDLE_ENV="${{ vars.PADDLE_ENV }}" \
+                    --build-arg NEXT_PUBLIC_SITE_URL="${{ vars.SITE_URL }}" \
                     -t "$IMAGE" \
                     -f adminsite/Dockerfile adminsite/
                   docker push "$IMAGE"
+
+            - name: Build and push docsite image
+              if: steps.changed.outputs.docsite == 'true'
+              run: |
+                  IMAGE="${{ vars.DOCKER_HOST }}/${{ github.repository_owner }}/vantage/docsite:latest"
+                  # DOCS_BASE_URL must match the proxy location that routes to
+                  # this container and the directory the image serves from.
+                  docker build \
+                    -t "$IMAGE" \
+                    -f docsite/Dockerfile docsite/
+                  docker push "$IMAGE"

.gitignore

@@ -2,6 +2,8 @@ node_modules
 dist
 build
 .env
+.env.bck
+.env.live
 docs/*
 !docs/superpowers/
 .superpowers
@@ -10,4 +12,6 @@ installer/*.msi
 installer/nssm.zip
 installer/checksums-msi.txt
 .next
-*.tsbuildinfo
+*.tsbuildinfo
+graphify-out
+docker-compose.live.yml

admin/cmd/adminctl/main.go

@@ -15,11 +15,11 @@ import (
 	"strings"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/config"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 	"github.com/google/uuid"
 	"github.com/joho/godotenv"
-	"github.com/mrhid6/vantage/admin/internal/config"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
 	"golang.org/x/crypto/bcrypt"
 )
 

admin/cmd/main.go

@@ -10,17 +10,20 @@ import (
 	"syscall"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/api"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/billing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/config"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/hqsync"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/inject"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/licensing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/lifecycle"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	sharedmail "gitea.hostxtra.co.uk/mrhid6/vantage/shared/mail"
 	"github.com/joho/godotenv"
-	"github.com/mrhid6/vantage/admin/internal/api"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/config"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/hqsync"
-	"github.com/mrhid6/vantage/admin/internal/inject"
-	"github.com/mrhid6/vantage/admin/internal/licensing"
-	"github.com/mrhid6/vantage/admin/internal/lifecycle"
-	"github.com/mrhid6/vantage/admin/internal/mail"
-	"github.com/mrhid6/vantage/admin/internal/models"
 )
 
 func main() {
@@ -34,7 +37,11 @@ func main() {
 	licensing.SetSigningKey(cfg.SigningKey)
 	api.SetAppLoginURL(cfg.AppLoginURL)
 
-	mail.Init(mail.Config{
+	if _, err := paddle.Init(cfg.PaddleAPIKey, cfg.PaddleEnv); err != nil {
+		log.Fatalf("paddle init: %v", err)
+	}
+
+	mail.Init(sharedmail.Sender{
 		Host: cfg.SMTPHost, Port: cfg.SMTPPort, From: cfg.SMTPFrom,
 		Username: cfg.SMTPUsername, Password: cfg.SMTPPassword,
 		PublicURL: cfg.PublicURL,
@@ -64,10 +71,21 @@ func main() {
 		idxCancel()
 		log.Fatalf("indexes: %v", err)
 	}
+	// Legacy plans are re-keyed BEFORE the seed, so the seed's fresh
+	// (self_hosted, professional) row cannot collide with the legacy self_hosted
+	// row's rename on deployment_tier_unique.
+	if err := models.MigrateLegacyPlans(idxCtx); err != nil {
+		idxCancel()
+		log.Fatalf("migrate legacy plans: %v", err)
+	}
 	if err := models.SeedPlans(idxCtx); err != nil {
 		idxCancel()
 		log.Fatalf("plan seed: %v", err)
 	}
+	if err := models.SeedCatalogue(idxCtx); err != nil {
+		idxCancel()
+		log.Fatalf("seed catalogue: %v", err)
+	}
 	if err := models.Backfill(idxCtx); err != nil {
 		idxCancel()
 		log.Fatalf("backfill: %v", err)
@@ -77,6 +95,7 @@ func main() {
 	reconcileCtx, stopReconcile := context.WithCancel(context.Background())
 	defer stopReconcile()
 	inject.StartReconciler(reconcileCtx)
+	billing.StartPlaceholderReconciler(reconcileCtx)
 	hqsync.Start(reconcileCtx)
 
 	lifecycle.SetPortalURL(cfg.PublicURL)

admin/go.mod

@@ -1,4 +1,4 @@
-module github.com/mrhid6/vantage/admin
+module gitea.hostxtra.co.uk/mrhid6/vantage/admin
 
 go 1.26
 
@@ -6,7 +6,7 @@ require (
 	github.com/gin-gonic/gin v1.10.0
 	github.com/google/uuid v1.6.0
 	github.com/joho/godotenv v1.5.1
-	github.com/mrhid6/vantage/shared v0.0.0-00010101000000-000000000000
+	gitea.hostxtra.co.uk/mrhid6/vantage/shared v0.0.0-00010101000000-000000000000
 	github.com/redis/go-redis/v9 v9.20.1
 	go.mongodb.org/mongo-driver/v2 v2.8.0
 	golang.org/x/crypto v0.54.0
@@ -52,4 +52,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-replace github.com/mrhid6/vantage/shared => ../shared
+replace gitea.hostxtra.co.uk/mrhid6/vantage/shared => ../shared

admin/internal/api/checkout.go

@@ -0,0 +1,301 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/billing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+// checkoutOptions serves everything the browser configurator needs to price a
+// plan: the active plans (base allowances), the full catalogue (component prices
+// in the running environment), and the environment name so the client can refuse
+// a mismatch. The client token itself is baked into the adminsite build, never
+// served from here.
+func checkoutOptions(c *gin.Context) {
+	ctx := c.Request.Context()
+	plans := []models.Plan{}
+	if cur, err := db.Admin("plans").Find(ctx, bson.M{"active": true}); err == nil {
+		_ = cur.All(ctx, &plans)
+	}
+	rows, err := models.AllCatalogue(ctx)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"plans":     plans,
+		"catalogue": rows,
+		"env":       paddle.Get().Env(),
+	})
+}
+
+// createSelfHostedPlaceholder makes an instance row that exists only so a
+// checkout has something to put in custom_data. It carries no licence and is
+// flagged Placeholder until the customer pastes their install's real UUID. The
+// generated id is temporary; linking replaces the identity.
+func createSelfHostedPlaceholder(c *gin.Context) {
+	s := auth.Current(c)
+	var body struct {
+		Name string `json:"name"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil || body.Name == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "a name is required"})
+		return
+	}
+	ctx := c.Request.Context()
+	inst := models.Instance{
+		InstanceID:  uuid.NewString(),
+		AccountID:   s.AccountID,
+		Name:        body.Name,
+		Deployment:  license.DeploymentSelfHosted,
+		Status:      models.StatusAwaitingLink,
+		Placeholder: true,
+		CreatedAt:   time.Now().UTC(),
+	}
+	if _, err := db.Admin("admin_instances").InsertOne(ctx, inst); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	audit.Write(ctx, models.AuditEntry{
+		Actor: s.Email, Action: "instance.placeholder_created", AccountID: s.AccountID,
+		Target: inst.InstanceID, IP: c.ClientIP()})
+	c.JSON(http.StatusCreated, gin.H{"instance_id": inst.InstanceID})
+}
+
+// createCloudCheckout creates a PAID cloud placeholder and hands back its id so
+// the browser can open a Paddle checkout keyed to it. Nothing is provisioned yet:
+// a cloud instance costs real infrastructure, so it is created only once payment
+// is confirmed, by the subscription webhook (billing.handleSubscription).
+//
+// This mirrors the self-hosted placeholder, with one difference that matters:
+// admin owns the cloud UUID, so the id generated here is the id the instance
+// will keep. Provisioning on the webhook reuses it (provision.CreateInstanceWithID),
+// which is why there is no claim-and-rewrite step and the subscription's
+// custom_data never goes stale. PendingOwnerUserID remembers who bought it so the
+// webhook can make them the instance owner.
+//
+// An abandoned checkout therefore leaves only this row — no infrastructure — the
+// same cheap, reap-safe state a self-hosted placeholder leaves.
+func createCloudCheckout(c *gin.Context) {
+	s := auth.Current(c)
+	var body struct {
+		Name string `json:"name"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil || strings.TrimSpace(body.Name) == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "a name is required"})
+		return
+	}
+	ctx := c.Request.Context()
+	inst := models.Instance{
+		InstanceID:         uuid.NewString(),
+		AccountID:          s.AccountID,
+		Name:               strings.TrimSpace(body.Name),
+		Deployment:         license.DeploymentCloud,
+		Status:             models.StatusAwaitingLink,
+		Placeholder:        true,
+		PendingOwnerUserID: s.UserID,
+		CreatedAt:          time.Now().UTC(),
+	}
+	if _, err := db.Admin("admin_instances").InsertOne(ctx, inst); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	audit.Write(ctx, models.AuditEntry{
+		Actor: s.Email, Action: "instance.cloud_placeholder_created", AccountID: s.AccountID,
+		Target: inst.InstanceID, IP: c.ClientIP()})
+	c.JSON(http.StatusCreated, gin.H{"instance_id": inst.InstanceID})
+}
+
+// updateEntitlement sets an instance's DESIRED configuration and pushes the
+// resulting line items to Paddle. It does NOT issue — the resulting
+// subscription.updated webhook does, from granted. An increase is prorated
+// immediately by Paddle; a reduction is recorded as desired and takes effect at
+// renewal, so this never shrinks a live licence.
+func updateEntitlement(c *gin.Context) {
+	inst, ok := ownedInstance(c, c.Param("id"))
+	if !ok {
+		return
+	}
+	ctx := c.Request.Context()
+	var body struct {
+		Tier     string   `json:"tier"`
+		Term     string   `json:"term"`
+		Servers  int      `json:"servers"`
+		Features []string `json:"features"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid configuration"})
+		return
+	}
+
+	plan, err := models.GetPlan(ctx, inst.Deployment, body.Tier)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "no such plan"})
+		return
+	}
+	if body.Servers < plan.BaseLimits.MaxServers && plan.BaseLimits.MaxServers != license.Unlimited {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": fmt.Sprintf("%s includes %d servers", plan.Name, plan.BaseLimits.MaxServers)})
+		return
+	}
+
+	desired := models.Config{Servers: body.Servers, Features: models.Features(body.Features).OrEmpty()}
+	items, err := catalogue.LineItems(ctx, paddle.Get().Env(), body.Term, plan, desired)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	// A live subscription is required to update. None means this instance has
+	// never been paid for — that is a checkout, not an update.
+	var sub models.Subscription
+	if err := db.Admin("subscriptions").FindOne(ctx,
+		bson.M{"instance_id": inst.InstanceID, "status": models.SubActive}).Decode(&sub); err != nil {
+		c.JSON(http.StatusConflict, gin.H{"error": "no active subscription; start a checkout instead"})
+		return
+	}
+
+	pItems := make([]paddle.LineItem, 0, len(items))
+	for _, it := range items {
+		pItems = append(pItems, paddle.LineItem{PriceID: it.PriceID, Quantity: it.Quantity})
+	}
+	if err := paddle.Get().UpdateSubscriptionItems(ctx, sub.PaddleSubscriptionID, pItems); err != nil {
+		c.JSON(http.StatusBadGateway, gin.H{"error": "billing update failed; nothing changed"})
+		return
+	}
+
+	// Record desired now; the webhook Paddle sends back promotes to granted and
+	// reissues. Recording here makes the portal reflect the intent instantly
+	// rather than waiting on the round-trip.
+	limits, _, _ := catalogue.Resolve(ctx, plan, desired)
+	next := models.Entitlement{
+		InstanceID: inst.InstanceID, AccountID: inst.AccountID,
+		Deployment: inst.Deployment, Tier: body.Tier, Term: body.Term,
+		Desired: desired, ResolvedLimits: limits,
+	}
+	ent, _ := models.GetEntitlement(ctx, inst.InstanceID)
+	if ent != nil {
+		next.Granted = ent.Granted
+		next.GrantedAt = ent.GrantedAt
+		if desired.Servers < ent.Granted.Servers {
+			now := time.Now().UTC()
+			next.ScheduledChangeAt = &now
+		}
+	} else {
+		next.Granted = desired
+	}
+	if err := models.UpsertEntitlement(ctx, next); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	audit.Write(ctx, models.AuditEntry{
+		Actor: auth.Current(c).Email, Action: "entitlement.requested",
+		AccountID: inst.AccountID, Target: inst.InstanceID})
+	c.JSON(http.StatusOK, gin.H{"entitlement": next, "pending": next.Pending()})
+}
+
+// claimPlaceholderLink binds a paid self-hosted placeholder to the customer's
+// real install UUID, then issues.
+//
+// :id is the placeholder (generated at checkout, carried in the subscription's
+// custom_data); the body carries the UUID the install actually reports. The
+// licence must bind to that real UUID (spec 1 has no unbound licence), so the
+// placeholder row's identity is rewritten to it and the subscription re-pointed,
+// then billing issues from the recorded subscription. Linking and claiming stay
+// one call here because, unlike Free, the payment already happened.
+func claimPlaceholderLink(c *gin.Context) {
+	inst, ok := ownedInstance(c, c.Param("id"))
+	if !ok {
+		return
+	}
+	if !inst.Placeholder {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "this instance is already linked"})
+		return
+	}
+	var body struct {
+		InstanceID string `json:"instance_id"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil || body.InstanceID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "instance_id is required"})
+		return
+	}
+	ctx := c.Request.Context()
+
+	// The real UUID must be free across every account — the unique index on
+	// instance_id is the tenant-isolation property, so refuse rather than collide.
+	if n, _ := db.Admin("admin_instances").CountDocuments(ctx,
+		bson.M{"instance_id": body.InstanceID}); n > 0 {
+		c.JSON(http.StatusConflict, gin.H{"error": "that instance ID is already linked"})
+		return
+	}
+
+	placeholderID := inst.InstanceID
+	if _, err := db.Admin("admin_instances").UpdateOne(ctx,
+		bson.M{"instance_id": placeholderID},
+		bson.M{"$set": bson.M{
+			"instance_id": body.InstanceID,
+			"status":      models.StatusActive,
+			"placeholder": false,
+		}}); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	// Re-point the subscription from the placeholder id to the real UUID so
+	// billing.IssueForInstance (and every later webhook) finds it.
+	if _, err := db.Admin("subscriptions").UpdateMany(ctx,
+		bson.M{"instance_id": placeholderID},
+		bson.M{"$set": bson.M{"instance_id": body.InstanceID}}); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	if err := billing.IssueForInstance(ctx, body.InstanceID); err != nil {
+		// The link stuck; issuance did not. The reconciler and a retry recover it,
+		// and the customer is not blocked from linking. Surface it, do not roll back.
+		c.JSON(http.StatusAccepted, gin.H{
+			"instance_id": body.InstanceID,
+			"warning":     "linked, but licence issuance is pending: " + err.Error()})
+		return
+	}
+	audit.Write(ctx, models.AuditEntry{
+		Actor: auth.Current(c).Email, Action: "instance.placeholder_linked",
+		AccountID: inst.AccountID, Target: body.InstanceID,
+		Detail: "from placeholder " + placeholderID, IP: c.ClientIP()})
+	c.JSON(http.StatusOK, gin.H{"instance_id": body.InstanceID})
+}
+
+// billingPortal mints a Paddle customer-portal URL. The account must already
+// have a paddle_customer_id, which it learns from its first subscription webhook.
+func billingPortal(c *gin.Context) {
+	s := auth.Current(c)
+	ctx := c.Request.Context()
+	var acc models.Account
+	if err := db.Admin("accounts").FindOne(ctx,
+		bson.M{"account_id": s.AccountID}).Decode(&acc); err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no account"})
+		return
+	}
+	if acc.PaddleCustomerID == "" {
+		c.JSON(http.StatusConflict, gin.H{"error": "no billing account yet; buy a paid plan first"})
+		return
+	}
+	url, err := paddle.Get().PortalSession(ctx, acc.PaddleCustomerID)
+	if err != nil {
+		c.JSON(http.StatusBadGateway, gin.H{"error": "could not open billing portal"})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"url": url})
+}

admin/internal/api/customer.go

@@ -9,19 +9,19 @@ import (
 	"strings"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/cloudprov"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/inject"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/licensing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/provision"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/cloudprov"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/inject"
-	"github.com/mrhid6/vantage/admin/internal/licensing"
-	"github.com/mrhid6/vantage/admin/internal/mail"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
-	"github.com/mrhid6/vantage/shared/provision"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 
@@ -200,6 +200,96 @@ func listSubscriptions(c *gin.Context) {
 	c.JSON(http.StatusOK, subs)
 }
 
+// provisionCloudInstance provisions a real cloud instance in the control plane
+// and records admin's row for it, WITHOUT issuing a licence. Both the Free
+// create path and the paid-checkout path share it, so the provisioning — and its
+// unwind-in-reverse rollback — has one definition rather than two that drift.
+//
+// It leaves the instance unlicensed on purpose: createInstance then issues Free,
+// and createCloudCheckout leaves it for the paid subscription webhook to license.
+// The returned rec carries no Tier or CurrentLicense; the caller sets those once
+// it has issued.
+//
+// Errors are returned unwrapped for the provisioning step so the caller can still
+// match provision.ErrEmailTaken / ErrNameRejected; later steps are wrapped.
+func provisionCloudInstance(c *gin.Context, name string) (*models.Instance, error) {
+	ctx := c.Request.Context()
+	s := auth.Current(c)
+
+	var cu models.CustomerUser
+	if err := db.Admin("customer_users").FindOne(ctx,
+		bson.M{"user_id": s.UserID}).Decode(&cu); err != nil {
+		return nil, fmt.Errorf("read account: %w", err)
+	}
+
+	inst, err := cloudprov.CreateInstance(ctx, name, cu.Email, cu.PasswordHash, cu.UserID)
+	if err != nil {
+		return nil, err
+	}
+
+	rec := models.Instance{
+		InstanceID: inst.InstanceID,
+		AccountID:  s.AccountID,
+		Name:       inst.Name,
+		Slug:       inst.Slug,
+		Deployment: license.DeploymentCloud,
+		Status:     models.StatusActive,
+		CreatedAt:  time.Now().UTC(),
+	}
+	if _, err := db.Admin("admin_instances").InsertOne(ctx, rec); err != nil {
+		// Unwind in reverse: the owner first, because RollbackInstance refuses
+		// an instance that still has users.
+		if uid, e := cloudprov.OwnerUserID(ctx, inst.InstanceID); e == nil {
+			_ = cloudprov.DeleteUser(ctx, inst.InstanceID, uid)
+		}
+		if e := cloudprov.RollbackInstance(ctx, inst.InstanceID); e != nil {
+			log.Printf("provisionCloudInstance: rollback of %s failed: %v", inst.InstanceID, e)
+		}
+		return nil, fmt.Errorf("record instance: %w", err)
+	}
+
+	// Record the owner's membership. Best-effort: the projected user already
+	// exists and is what actually grants access, so a missing row here costs a
+	// line in the members panel, not access — and the boot backfill rebuilds it.
+	ownerID, err := cloudprov.OwnerUserID(ctx, inst.InstanceID)
+	if err != nil {
+		log.Printf("provisionCloudInstance: owner lookup for %s: %v", inst.InstanceID, err)
+	} else if _, err := db.Admin("instance_members").InsertOne(ctx, models.InstanceMember{
+		MemberID:       uuid.NewString(),
+		AccountID:      s.AccountID,
+		InstanceID:     inst.InstanceID,
+		CustomerUserID: cu.UserID,
+		ControlUserID:  ownerID,
+		Role:           sharedmodels.RoleOwner,
+		Email:          cu.Email,
+		CreatedAt:      time.Now().UTC(),
+	}); err != nil {
+		log.Printf("provisionCloudInstance: record owner membership for %s: %v", inst.InstanceID, err)
+	}
+
+	audit.Write(ctx, models.AuditEntry{
+		Actor: s.Email, Action: "instance.created", AccountID: s.AccountID,
+		Target: inst.InstanceID, Detail: "slug=" + inst.Slug, IP: c.ClientIP()})
+	return &rec, nil
+}
+
+// cloudProvisionError maps the errors provisionCloudInstance can surface onto the
+// customer-facing responses shared by the Free and paid-checkout paths.
+func cloudProvisionError(c *gin.Context, err error) {
+	switch {
+	case errors.Is(err, provision.ErrEmailTaken):
+		// users.email is unique per instance, so this means the address already
+		// owns a user in an instance we are not creating — a legacy cloud tenant.
+		// Staff have to attach that one by hand.
+		c.JSON(http.StatusConflict, gin.H{
+			"error": "that email address already belongs to an existing Vantage instance; contact support@hostxtra.co.uk and we will link it to your account"})
+	case errors.Is(err, provision.ErrNameRejected):
+		c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
+	default:
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "could not create the instance"})
+	}
+}
+
 // createInstance provisions a Free cloud instance for the calling account.
 //
 // The ordering matters and each step unwinds the previous one. Licence issuance
@@ -221,8 +311,13 @@ func createInstance(c *gin.Context) {
 
 	// Pre-check the Free rule so we never create an instance we then cannot
 	// licence. licensing.Issue enforces it too; this is the friendly refusal.
+	//
+	// Scoped to cloud because that is what this endpoint creates. It MUST match
+	// checkFreeLimit's scoping — a pre-check stricter than the issuer refuses
+	// something that would have worked.
 	n, err := db.Admin("admin_instances").CountDocuments(ctx, bson.M{
 		"account_id": s.AccountID,
+		"deployment": license.DeploymentCloud,
 		"tier":       license.TierFree,
 		"status":     bson.M{"$ne": models.StatusCancelled},
 	})
@@ -232,79 +327,16 @@ func createInstance(c *gin.Context) {
 	}
 	if n > 0 {
 		c.JSON(http.StatusConflict, gin.H{
-			"error": "this account already has a Free instance"})
+			"error": "this account already has a Free cloud instance"})
 		return
 	}
 
-	var cu models.CustomerUser
-	if err := db.Admin("customer_users").FindOne(ctx,
-		bson.M{"user_id": s.UserID}).Decode(&cu); err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "could not read your account"})
-		return
-	}
-
-	inst, err := cloudprov.CreateInstance(ctx, name, cu.Email, cu.PasswordHash, cu.UserID)
+	rec, err := provisionCloudInstance(c, name)
 	if err != nil {
-		if errors.Is(err, provision.ErrEmailTaken) {
-			// users.email is unique per instance, so this means the address
-			// already owns a user in an instance we are not creating — a legacy
-			// cloud tenant. Staff have to attach that one by hand.
-			c.JSON(http.StatusConflict, gin.H{
-				"error": "that email address already belongs to an existing Vantage instance; contact support@hostxtra.co.uk and we will link it to your account"})
-			return
-		}
-		if errors.Is(err, provision.ErrNameRejected) {
-			c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
-			return
-		}
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "could not create the instance"})
+		cloudProvisionError(c, err)
 		return
 	}
-
-	rec := models.Instance{
-		InstanceID: inst.InstanceID,
-		AccountID:  s.AccountID,
-		Name:       inst.Name,
-		Slug:       inst.Slug,
-		Deployment: license.DeploymentCloud,
-		Status:     models.StatusActive,
-		CreatedAt:  time.Now().UTC(),
-	}
-	if _, err := db.Admin("admin_instances").InsertOne(ctx, rec); err != nil {
-		// Unwind in reverse: the owner first, because RollbackInstance refuses
-		// an instance that still has users.
-		if uid, e := cloudprov.OwnerUserID(ctx, inst.InstanceID); e == nil {
-			_ = cloudprov.DeleteUser(ctx, inst.InstanceID, uid)
-		}
-		if e := cloudprov.RollbackInstance(ctx, inst.InstanceID); e != nil {
-			log.Printf("createInstance: rollback of %s failed: %v", inst.InstanceID, e)
-		}
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "could not create the instance"})
-		return
-	}
-
-	// Record the owner's membership. Best-effort: the projected user already
-	// exists and is what actually grants access, so a missing row here costs a
-	// line in the members panel, not access — and the boot backfill rebuilds it.
-	ownerID, err := cloudprov.OwnerUserID(ctx, inst.InstanceID)
-	if err != nil {
-		log.Printf("createInstance: owner lookup for %s: %v", inst.InstanceID, err)
-	} else if _, err := db.Admin("instance_members").InsertOne(ctx, models.InstanceMember{
-		MemberID:       uuid.NewString(),
-		AccountID:      s.AccountID,
-		InstanceID:     inst.InstanceID,
-		CustomerUserID: cu.UserID,
-		ControlUserID:  ownerID,
-		Role:           sharedmodels.RoleOwner,
-		Email:          cu.Email,
-		CreatedAt:      time.Now().UTC(),
-	}); err != nil {
-		log.Printf("createInstance: record owner membership for %s: %v", inst.InstanceID, err)
-	}
-
-	audit.Write(ctx, models.AuditEntry{
-		Actor: s.Email, Action: "instance.created", AccountID: s.AccountID,
-		Target: inst.InstanceID, Detail: "slug=" + inst.Slug, IP: c.ClientIP()})
+	inst := rec
 
 	// Past this point nothing fails the request.
 	lic, err := licensing.Issue(ctx, licensing.IssueInput{
@@ -322,7 +354,7 @@ func createInstance(c *gin.Context) {
 	inject.Deliver(ctx, lic)
 
 	if mail.Enabled() {
-		if err := mail.SendInstanceReady(s.Email, inst.Name,
+		if err := mail.Default.SendInstanceReady(s.Email, inst.Name,
 			loginURLFor(inst.Slug), lic.ExpiresAt); err != nil {
 			log.Printf("createInstance: instance-ready email to %s: %v", s.Email, err)
 		}
@@ -364,10 +396,16 @@ func renewInstance(c *gin.Context) {
 		return
 	}
 
+	// Free renews on its deployment's only term: monthly for cloud, annual for
+	// self-hosted. Reading it from TermsFor rather than hardcoding is what stops
+	// a self-hosted instance being handed a one-month licence.
+	terms := license.TermsFor(inst.Deployment)
+	term := terms[len(terms)-1]
+
 	lic, err := licensing.Issue(ctx, licensing.IssueInput{
 		InstanceID: inst.InstanceID,
 		Tier:       license.TierFree,
-		Term:       "monthly",
+		Term:       term,
 		Reason:     models.ReasonRenewal,
 		IssuedBy:   "self-serve",
 	})
@@ -375,7 +413,9 @@ func renewInstance(c *gin.Context) {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
-	inject.Deliver(ctx, lic)
+	// Cloud is injected; self-hosted is delivered to the customer, because their
+	// database is theirs and we cannot write to it.
+	deliver(c, inst, lic)
 
 	// Clear the notice log so the next term starts the sequence again. Issue has
 	// already set status back to active.
@@ -391,7 +431,7 @@ func renewInstance(c *gin.Context) {
 		Target: inst.InstanceID, IP: c.ClientIP()})
 
 	if mail.Enabled() {
-		if err := mail.SendRenewed(s.Email, inst.Name, lic.ExpiresAt); err != nil {
+		if err := mail.Default.SendRenewed(s.Email, inst.Name, lic.ExpiresAt); err != nil {
 			log.Printf("renewInstance: renewed email to %s: %v", s.Email, err)
 		}
 	}
@@ -414,6 +454,90 @@ var appLoginURL string
 // SetAppLoginURL is called from main.
 func SetAppLoginURL(v string) { appLoginURL = v }
 
+// claimFree issues a Free licence on a linked self-hosted instance.
+//
+// The link step creates the row; this gives it a licence. They are separate
+// because linking is about identity — proving which install is yours — and
+// claiming is about entitlement, and a customer who links an install and then
+// changes their mind should not have consumed their one Free allowance.
+//
+// Free is outside Paddle entirely, so there is no checkout, no subscription and
+// nothing to reconcile. licensing.Issue's own checkFreeLimit is the real guard;
+// the count here exists to refuse politely before anything is written.
+func claimFree(c *gin.Context) {
+	inst, ok := ownedInstance(c, c.Param("id"))
+	if !ok {
+		return
+	}
+	ctx := c.Request.Context()
+
+	// Cloud Free is claimed at creation by POST /api/instances. Allowing it here
+	// too would be a second way to reach the same state, with its own bugs.
+	if inst.Deployment != license.DeploymentSelfHosted {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "cloud instances get their Free licence when they are created"})
+		return
+	}
+	if inst.CurrentLicense != "" {
+		c.JSON(http.StatusConflict, gin.H{
+			"error": "this instance already has a licence"})
+		return
+	}
+
+	plan, err := models.GetPlan(ctx, license.DeploymentSelfHosted, license.TierFree)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "no Free plan configured"})
+		return
+	}
+	if !plan.Active {
+		c.JSON(http.StatusForbidden, gin.H{
+			"error": "Free self-hosted is not currently offered"})
+		return
+	}
+
+	// The entitlement is written BEFORE the licence, so Issue snapshots it rather
+	// than falling back to the plan base. They are the same numbers today, but
+	// the ordering is what makes that a coincidence rather than a dependency.
+	if err := models.UpsertEntitlement(ctx, models.Entitlement{
+		InstanceID:     inst.InstanceID,
+		AccountID:      inst.AccountID,
+		Deployment:     license.DeploymentSelfHosted,
+		Tier:           license.TierFree,
+		Term:           "annual",
+		Desired:        models.Config{Servers: plan.BaseLimits.MaxServers, Features: models.Features{}},
+		Granted:        models.Config{Servers: plan.BaseLimits.MaxServers, Features: models.Features{}},
+		ResolvedLimits: plan.BaseLimits,
+	}); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	s := auth.Current(c)
+	lic, err := licensing.Issue(ctx, licensing.IssueInput{
+		InstanceID: inst.InstanceID,
+		Tier:       license.TierFree,
+		// Annual, and not a choice. Self-hosted sells annual only because the
+		// term length is the revocation window for an offline licence.
+		Term:     "annual",
+		Reason:   models.ReasonNew,
+		IssuedBy: s.Email,
+	})
+	if err != nil {
+		status := http.StatusBadRequest
+		if errors.Is(err, licensing.ErrFreeLimit) {
+			status = http.StatusConflict
+		}
+		c.JSON(status, gin.H{"error": err.Error()})
+		return
+	}
+
+	deliver(c, inst, lic)
+	audit.Write(ctx, models.AuditEntry{
+		Actor: s.Email, Action: "instance.claimed_free", AccountID: s.AccountID,
+		Target: inst.InstanceID, Detail: "self-hosted Free, annual", IP: c.ClientIP()})
+	c.JSON(http.StatusCreated, lic)
+}
+
 // deliver sends a freshly issued licence where it needs to go. Cloud instances
 // are injected; self-hosted customers are emailed and can download.
 //
@@ -426,6 +550,6 @@ func deliver(c *gin.Context, inst *models.Instance, lic *models.License) {
 	}
 	s := auth.Current(c)
 	if s != nil && mail.Enabled() {
-		_ = mail.SendLicense(s.Email, inst.Name, lic.Blob)
+		_ = mail.Default.SendLicense(s.Email, inst.Name, lic.Blob)
 	}
 }

admin/internal/api/entitlement.go

@@ -0,0 +1,187 @@
+package api
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"github.com/gin-gonic/gin"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+// entitlementBody is what a caller may set.
+//
+// Only Desired is writable. Granted is what a payment confirmed, and letting a
+// form set it would let the portal grant itself a licence — which is the one
+// thing this whole split exists to prevent. Staff promote Granted explicitly
+// through a separate flag, because staff issuing a licence to somebody who has
+// not paid is a real operation with a real reason, and it should be one they
+// took on purpose and left an audit row for.
+type entitlementBody struct {
+	Tier     string   `json:"tier"`
+	Term     string   `json:"term"`
+	Servers  int      `json:"servers"`
+	Features []string `json:"features"`
+	// Grant promotes Desired into Granted in the same write. Staff only.
+	Grant bool `json:"grant"`
+}
+
+// getEntitlement serves the customer's own view of one instance's configuration.
+func getEntitlement(c *gin.Context) {
+	inst, ok := ownedInstance(c, c.Param("id"))
+	if !ok {
+		return
+	}
+	ent, err := models.GetEntitlement(c.Request.Context(), inst.InstanceID)
+	if errors.Is(err, models.ErrNoEntitlement) {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no entitlement"})
+		return
+	}
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"entitlement": ent, "pending": ent.Pending()})
+}
+
+func staffGetEntitlement(c *gin.Context) {
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(c.Request.Context(),
+		bson.M{"instance_id": c.Param("id")}).Decode(&inst); err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no such instance"})
+		return
+	}
+	ent, err := models.GetEntitlement(c.Request.Context(), inst.InstanceID)
+	if errors.Is(err, models.ErrNoEntitlement) {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no entitlement"})
+		return
+	}
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"entitlement": ent, "pending": ent.Pending()})
+}
+
+// staffSetEntitlement writes an instance's configuration.
+//
+// This is the endpoint that makes metering usable before Paddle exists: staff
+// configure, then issue. It does NOT issue — recording what an instance is
+// allowed and signing a licence for it stay separate, so a bad configuration is
+// a row to correct rather than a licence to supersede.
+func staffSetEntitlement(c *gin.Context) {
+	ctx := c.Request.Context()
+	var body entitlementBody
+	if err := c.ShouldBindJSON(&body); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid entitlement"})
+		return
+	}
+
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(ctx,
+		bson.M{"instance_id": c.Param("id")}).Decode(&inst); err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no such instance"})
+		return
+	}
+
+	tier := body.Tier
+	if tier == "" {
+		tier = inst.Tier
+	}
+	plan, err := models.GetPlan(ctx, inst.Deployment, tier)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": fmt.Sprintf("no plan for %s/%s", inst.Deployment, tier)})
+		return
+	}
+	if !termSold(inst.Deployment, body.Term) {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": fmt.Sprintf("%s does not sell %s", inst.Deployment, body.Term)})
+		return
+	}
+	if body.Servers < plan.BaseLimits.MaxServers &&
+		plan.BaseLimits.MaxServers != -1 {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": fmt.Sprintf("%s includes %d servers; cannot configure fewer",
+				plan.Name, plan.BaseLimits.MaxServers)})
+		return
+	}
+
+	desired := models.Config{
+		Servers:  body.Servers,
+		Features: models.Features(body.Features).OrEmpty(),
+	}
+
+	// Start from whatever is already granted, so writing a desired change never
+	// silently alters what the instance is currently allowed.
+	granted := desired
+	existing, err := models.GetEntitlement(ctx, inst.InstanceID)
+	switch {
+	case err == nil:
+		if !body.Grant {
+			granted = existing.Granted
+		}
+	case errors.Is(err, models.ErrNoEntitlement):
+		// First write. There is nothing granted to preserve, so desired becomes
+		// granted — an instance with an entitlement nobody has granted would
+		// fall back to the plan base at issue time and confuse everyone.
+	default:
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	// Only the limits are stored. Features are NOT snapshotted onto the
+	// entitlement: they live in Granted.Features, and Issue resolves them again
+	// against the catalogue at signing time. Storing a second copy here would
+	// give two answers to "which features does this instance have".
+	limits, _, err := catalogue.Resolve(ctx, plan, granted)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	ent := models.Entitlement{
+		InstanceID:     inst.InstanceID,
+		AccountID:      inst.AccountID,
+		Deployment:     inst.Deployment,
+		Tier:           tier,
+		Term:           body.Term,
+		Desired:        desired,
+		Granted:        granted,
+		ResolvedLimits: limits,
+	}
+	// A reduction is a fact about the future, so it carries a date. There is no
+	// billing period to read yet — plan 5 sets this from the subscription — so
+	// staff-set reductions are marked as pending without one.
+	if desired.Servers < granted.Servers {
+		now := time.Now().UTC()
+		ent.ScheduledChangeAt = &now
+	}
+	if existing != nil {
+		ent.GrantedAt = existing.GrantedAt
+	}
+	if body.Grant {
+		ent.GrantedAt = time.Now().UTC()
+	}
+
+	if err := models.UpsertEntitlement(ctx, ent); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	audit.Write(ctx, models.AuditEntry{
+		Actor:     auth.Current(c).Email,
+		Action:    "entitlement.updated",
+		AccountID: inst.AccountID,
+		Target:    inst.InstanceID,
+		Detail: fmt.Sprintf("tier=%s term=%s desired_servers=%d granted_servers=%d granted=%t",
+			tier, body.Term, desired.Servers, granted.Servers, body.Grant),
+	})
+	c.JSON(http.StatusOK, gin.H{"entitlement": ent, "pending": ent.Pending()})
+}

admin/internal/api/members.go

@@ -6,16 +6,16 @@ import (
 	"net/http"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/cloudprov"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/provision"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/cloudprov"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
-	"github.com/mrhid6/vantage/shared/provision"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 

admin/internal/api/paddle.go

@@ -0,0 +1,64 @@
+package api
+
+import (
+	"encoding/json"
+	"io"
+	"log"
+	"net/http"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/billing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/config"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	"github.com/gin-gonic/gin"
+)
+
+// paddleWebhook is the ingress for every Paddle event.
+//
+// Order is load-bearing: read the RAW body first (the signature is over the
+// exact bytes), verify, THEN claim the event ID, THEN dispatch. A bad signature
+// is 401 and processes nothing; a duplicate of a handled event is 200 and does
+// nothing; a handler error is 500 so Paddle retries, and is recorded for staff.
+func paddleWebhook(cfg config.Config) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		body, err := io.ReadAll(c.Request.Body)
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "unreadable body"})
+			return
+		}
+		if !paddle.VerifySignature(cfg.PaddleWebhookSecret,
+			c.GetHeader("Paddle-Signature"), body) {
+			log.Printf("paddle webhook: bad signature from %s", c.ClientIP())
+			c.JSON(http.StatusUnauthorized, gin.H{"error": "bad signature"})
+			return
+		}
+
+		var ev billing.Event
+		if err := json.Unmarshal(body, &ev); err != nil || ev.EventID == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "malformed event"})
+			return
+		}
+
+		ctx := c.Request.Context()
+		claimed, err := models.ClaimEvent(ctx, ev.EventID, ev.EventType)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "claim failed"})
+			return
+		}
+		if !claimed {
+			// Already handled (or in flight). 200 so Paddle stops retrying.
+			c.JSON(http.StatusOK, gin.H{"duplicate": true})
+			return
+		}
+
+		if err := billing.Dispatch(ctx, ev); err != nil {
+			log.Printf("paddle webhook: handler %s failed for %s: %v",
+				ev.EventType, ev.EventID, err)
+			_ = models.MarkEventProcessed(ctx, ev.EventID, err)
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "handler failed"})
+			return
+		}
+		_ = models.MarkEventProcessed(ctx, ev.EventID, nil)
+		c.JSON(http.StatusOK, gin.H{"ok": true})
+	}
+}

admin/internal/api/people.go

@@ -7,13 +7,13 @@ import (
 	"strings"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/cloudprov"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
 	"github.com/gin-gonic/gin"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/cloudprov"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"golang.org/x/crypto/bcrypt"
 )

admin/internal/api/routes.go

@@ -10,10 +10,10 @@ import (
 	"net/http"
 	"slices"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/config"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 	"github.com/gin-gonic/gin"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/config"
-	"github.com/mrhid6/vantage/admin/internal/models"
 )
 
 func Routes(cfg config.Config) http.Handler {
@@ -39,6 +39,10 @@ func Routes(cfg config.Config) http.Handler {
 	r.POST("/auth/signup", auth.HandleSignup)
 	r.POST("/auth/accept-invite", auth.HandleAcceptInvite)
 
+	// Public: Paddle carries no session cookie; its signature is its auth. Must
+	// NOT sit under the cust group's session middleware.
+	r.POST("/api/paddle/webhook", paddleWebhook(cfg))
+
 	cust := r.Group("/api")
 	cust.Use(auth.RequireCustomer())
 	{
@@ -68,6 +72,25 @@ func Routes(cfg config.Config) http.Handler {
 		cust.POST("/instances/link", linkInstance)
 		cust.POST("/instances/:id/relink", relinkInstance)
 		cust.POST("/instances/:id/renew", renewInstance)
+		cust.POST("/instances/:id/claim-free",
+			auth.RequireAccountRole(models.AccountRoleOwner, models.AccountRoleAdmin),
+			claimFree)
+		cust.GET("/instances/:id/entitlement", getEntitlement)
+		cust.GET("/checkout/options", checkoutOptions)
+		cust.POST("/instances/self-hosted",
+			auth.RequireAccountRole(models.AccountRoleOwner, models.AccountRoleAdmin),
+			createSelfHostedPlaceholder)
+		// Paid cloud: provisions a real instance the paid webhook then licenses.
+		cust.POST("/instances/cloud",
+			auth.RequireAccountRole(models.AccountRoleOwner, models.AccountRoleAdmin),
+			createCloudCheckout)
+		cust.PUT("/instances/:id/entitlement",
+			auth.RequireAccountRole(models.AccountRoleOwner, models.AccountRoleAdmin),
+			updateEntitlement)
+		cust.POST("/billing/portal", billingPortal)
+		cust.POST("/instances/:id/claim-link",
+			auth.RequireAccountRole(models.AccountRoleOwner, models.AccountRoleAdmin),
+			claimPlaceholderLink)
 		cust.GET("/instances/:id/license", getInstanceLicense)
 		cust.GET("/instances/:id/license/download", downloadInstanceLicense)
 		cust.GET("/instances/:id/members", listInstanceMembers)
@@ -98,9 +121,18 @@ func Routes(cfg config.Config) http.Handler {
 		staff.POST("/instances/:id/relink", staffRelink)
 		staff.GET("/licenses", staffListLicenses)
 		staff.GET("/plans", staffListPlans)
-		staff.PUT("/plans/:tier", staffUpdatePlan)
+		// Plans are keyed on the pair now, so the path is too. A single :tier
+		// segment could name three rows.
+		staff.PUT("/plans/:deployment/:tier", staffUpdatePlan)
+
+		staff.GET("/catalogue", staffListCatalogue)
+		staff.PUT("/catalogue", staffUpdateCatalogue)
+
+		staff.GET("/instances/:id/entitlement", staffGetEntitlement)
+		staff.PUT("/instances/:id/entitlement", staffSetEntitlement)
 		staff.GET("/audit", staffAudit)
 		staff.GET("/health/injection", staffInjectionHealth)
+		staff.GET("/health/billing", staffBillingHealth)
 	}
 
 	return r

admin/internal/api/staff.go

@@ -1,19 +1,20 @@
 package api
 
 import (
+	"fmt"
 	"net/http"
 	"strings"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/auth"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/licensing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/auth"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/licensing"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo"
 	"go.mongodb.org/mongo-driver/v2/mongo/options"
@@ -379,6 +380,29 @@ func staffListLicenses(c *gin.Context) {
 	c.JSON(http.StatusOK, lics)
 }
 
+// staffBillingHealth surfaces webhook handlers that failed and paid-but-unlinked
+// placeholders, so a customer who paid and got nothing is visible rather than
+// stuck in a support queue.
+func staffBillingHealth(c *gin.Context) {
+	ctx := c.Request.Context()
+	failed := []models.PaddleEvent{}
+	if cur, err := db.Admin("paddle_events").Find(ctx,
+		bson.M{"processed_at": bson.M{"$exists": false}, "error": bson.M{"$ne": ""}}); err == nil {
+		_ = cur.All(ctx, &failed)
+	}
+	unlinked := []models.Instance{}
+	if cur, err := db.Admin("admin_instances").Find(ctx,
+		bson.M{"placeholder": true, "status": models.StatusAwaitingLink}); err == nil {
+		_ = cur.All(ctx, &unlinked)
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"failed_events":  failed,
+		"failed_count":   len(failed),
+		"unlinked_paid":  unlinked,
+		"unlinked_count": len(unlinked),
+	})
+}
+
 func staffListPlans(c *gin.Context) {
 	cur, err := db.Admin("plans").Find(c.Request.Context(), bson.M{})
 	if err != nil {
@@ -393,31 +417,130 @@ func staffListPlans(c *gin.Context) {
 	c.JSON(http.StatusOK, plans)
 }
 
-// staffUpdatePlan changes what a tier grants FROM NOW ON. Existing licences
-// snapshotted their plan at issue time and are unaffected — the same rule as
-// workflow_runs.steps_snapshot.
+// staffUpdatePlan changes what a (deployment, tier) pair grants FROM NOW ON.
+// Existing licences snapshotted their plan at issue time and are unaffected —
+// the same rule as workflow_runs.steps_snapshot.
+//
+// It writes no Paddle identifiers: those live in the catalogue, because a
+// metered plan is priced by several components.
 func staffUpdatePlan(c *gin.Context) {
 	var body models.Plan
 	if err := c.ShouldBindJSON(&body); err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid plan"})
 		return
 	}
+	deployment, tier := c.Param("deployment"), c.Param("tier")
 	set := bson.M{
-		"name":              body.Name,
-		"limits":            body.Limits,
-		"features":          body.Features.OrEmpty(),
-		"paddle_product_id": body.PaddleProductID,
-		"paddle_price_ids":  body.PaddlePriceIDs,
-		"active":            body.Active,
+		"name":          body.Name,
+		"base_limits":   body.BaseLimits,
+		"base_features": body.BaseFeatures.OrEmpty(),
+		"support_level": body.SupportLevel,
+		"active":        body.Active,
 	}
-	if _, err := db.Admin("plans").UpdateOne(c.Request.Context(),
-		bson.M{"tier": c.Param("tier")}, bson.M{"$set": set}); err != nil {
+	res, err := db.Admin("plans").UpdateOne(c.Request.Context(),
+		bson.M{"deployment": deployment, "tier": tier}, bson.M{"$set": set})
+	if err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
+	if res.MatchedCount == 0 {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no such plan"})
+		return
+	}
+	audit.Write(c.Request.Context(), models.AuditEntry{
+		Actor:  auth.Current(c).Email,
+		Action: "plan.updated",
+		Target: deployment + "/" + tier,
+		Detail: fmt.Sprintf("servers=%d monitors=%d support=%s active=%t",
+			body.BaseLimits.MaxServers, body.BaseLimits.MaxMonitors,
+			body.SupportLevel, body.Active),
+	})
 	c.JSON(http.StatusOK, gin.H{"updated": true})
 }
 
+func staffListCatalogue(c *gin.Context) {
+	rows, err := models.AllCatalogue(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, rows)
+}
+
+// staffUpdateCatalogue sets the price IDs on one component.
+//
+// The component is addressed by its natural key rather than by an ObjectID, so
+// the staff UI never has to hold a Mongo identifier and a seeded row can be
+// updated the moment it exists. Only price IDs are writable: a row's kind, plan
+// and key are seeded by SeedCatalogue, and letting a form invent a limit_key
+// would let it invent a limit nothing enforces.
+func staffUpdateCatalogue(c *gin.Context) {
+	var body struct {
+		Kind       string                       `json:"kind"`
+		Deployment string                       `json:"deployment"`
+		Tier       string                       `json:"tier"`
+		LimitKey   string                       `json:"limit_key"`
+		FeatureKey string                       `json:"feature_key"`
+		PriceIDs   map[string]map[string]string `json:"price_ids"`
+	}
+	if err := c.ShouldBindJSON(&body); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid component"})
+		return
+	}
+
+	// Refuse a price on a term the deployment does not sell. Storing one would
+	// mean a resolved self-hosted monthly price later, which the resolver treats
+	// as a configuration error — better to refuse it at the point somebody
+	// pastes it, while they are looking at the screen.
+	for env, byTerm := range body.PriceIDs {
+		for term, id := range byTerm {
+			if id == "" {
+				continue
+			}
+			if !termSold(body.Deployment, term) {
+				c.JSON(http.StatusBadRequest, gin.H{
+					"error": fmt.Sprintf("%s does not sell %s (environment %s)",
+						body.Deployment, term, env)})
+				return
+			}
+		}
+	}
+
+	filter := bson.M{
+		"kind":        body.Kind,
+		"deployment":  body.Deployment,
+		"tier":        body.Tier,
+		"limit_key":   body.LimitKey,
+		"feature_key": body.FeatureKey,
+	}
+	res, err := db.Admin("catalogue").UpdateOne(c.Request.Context(), filter,
+		bson.M{"$set": bson.M{"price_ids": body.PriceIDs}})
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	if res.MatchedCount == 0 {
+		c.JSON(http.StatusNotFound, gin.H{"error": "no such component"})
+		return
+	}
+	audit.Write(c.Request.Context(), models.AuditEntry{
+		Actor:  auth.Current(c).Email,
+		Action: "catalogue.updated",
+		Target: body.Deployment + "/" + body.Tier + "/" + body.Kind,
+		Detail: body.LimitKey + body.FeatureKey,
+	})
+	c.JSON(http.StatusOK, gin.H{"updated": true})
+}
+
+func termSold(deployment, term string) bool {
+	for _, t := range license.TermsFor(deployment) {
+		if t == term {
+			return true
+		}
+	}
+	return false
+}
+
 func staffAudit(c *gin.Context) {
 	filter := bson.M{}
 	if v := c.Query("account_id"); v != "" {

admin/internal/audit/audit.go

@@ -7,8 +7,8 @@ import (
 	"log"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 )
 
 // Write never returns an error: an audit failure must not roll back the action

admin/internal/auth/customer.go

@@ -10,12 +10,13 @@ import (
 	"strings"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	sharedmail "gitea.hostxtra.co.uk/mrhid6/vantage/shared/mail"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/mail"
-	"github.com/mrhid6/vantage/admin/internal/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"golang.org/x/crypto/bcrypt"
 )
@@ -26,7 +27,11 @@ const BcryptCost = 12
 
 // VerifyWindow mirrors sitesvc's proven pattern: 32 random bytes, only the
 // SHA-256 hash stored, 24-hour expiry.
-const VerifyWindow = 24 * time.Hour
+//
+// It is shared/mail's constant rather than a second copy because the
+// verification email states the number of hours: a window that disagreed with
+// what the email promised would expire links early with no explanation.
+const VerifyWindow = sharedmail.VerifyWindow
 
 // CreateCustomerUser creates an unverified HQ login with a chosen password and
 // emails the verification link. Used by signup and by staff.
@@ -58,7 +63,7 @@ func CreateCustomerUser(ctx context.Context, accountID, email, password, account
 		return err
 	}
 
-	if err := mail.SendVerification(u.Email, token); err != nil {
+	if err := mail.Default.SendVerification(u.Email, token); err != nil {
 		// Undo the insert. A row whose verification link was never delivered is
 		// worse than no row: it can never be signed in to, and it holds the
 		// unique index on email, so the customer cannot sign up again with the
@@ -109,7 +114,7 @@ func CreateInvitedUser(ctx context.Context, accountID, accountName, email, accou
 		return err
 	}
 
-	if err := mail.SendInvite(u.Email, accountName, token); err != nil {
+	if err := mail.Default.SendInvite(u.Email, accountName, token); err != nil {
 		// Same rollback rule, and the same detached context, as signup: a row
 		// whose link was never delivered can never be signed in to and holds
 		// the unique index on email against the person it was meant for.

admin/internal/auth/middleware.go

@@ -4,9 +4,9 @@ import (
 	"net/http"
 	"slices"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 	"github.com/gin-gonic/gin"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 

admin/internal/auth/staff.go

@@ -4,10 +4,10 @@ import (
 	"net/http"
 	"strings"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 	"github.com/gin-gonic/gin"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"golang.org/x/crypto/bcrypt"
 )

admin/internal/billing/cloudprovision.go

@@ -0,0 +1,196 @@
+package billing
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/cloudprov"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
+	"github.com/google/uuid"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+// placeholderReconcileInterval is how often placeholders are swept: paid cloud
+// ones a failed webhook left unprovisioned are completed, and stale unpaid ones
+// of either deployment are reaped.
+const placeholderReconcileInterval = 5 * time.Minute
+
+// abandonedPlaceholderAfter is how long an unpaid placeholder may sit before it
+// is treated as an abandoned checkout and deleted. Comfortably longer than a
+// webhook's delivery lag, so a just-paid placeholder awaiting its subscription
+// event is never mistaken for an abandoned one.
+const abandonedPlaceholderAfter = 24 * time.Hour
+
+// StartPlaceholderReconciler owns the after-checkout lifecycle of placeholders.
+//
+// It recovers the one failure the webhook cannot on its own — a confirmed payment
+// whose provisioning handler errored, which is not retried once its event is
+// claimed and which the inject reconciler (licences only) does not repair — by
+// completing paid cloud placeholders here. And it reaps abandoned ones: a
+// placeholder with no subscription past abandonedPlaceholderAfter is a checkout
+// nobody finished, and deleting it loses nothing, because a placeholder has no
+// control-plane footprint until it is paid for and provisioned.
+func StartPlaceholderReconciler(ctx context.Context) {
+	go func() {
+		t := time.NewTicker(placeholderReconcileInterval)
+		defer t.Stop()
+		reconcilePlaceholders(ctx)
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-t.C:
+				reconcilePlaceholders(ctx)
+			}
+		}
+	}()
+}
+
+func reconcilePlaceholders(ctx context.Context) {
+	cur, err := db.Admin("admin_instances").Find(ctx, bson.M{"placeholder": true})
+	if err != nil {
+		log.Printf("placeholder reconcile: query: %v", err)
+		return
+	}
+	var placeholders []models.Instance
+	if err := cur.All(ctx, &placeholders); err != nil {
+		log.Printf("placeholder reconcile: decode: %v", err)
+		return
+	}
+
+	now := time.Now().UTC()
+	for _, inst := range placeholders {
+		var sub models.Subscription
+		paid := db.Admin("subscriptions").FindOne(ctx,
+			bson.M{"instance_id": inst.InstanceID, "status": models.SubActive}).Decode(&sub) == nil
+
+		if !paid {
+			// Never paid for. Reap once it is old enough to be an abandoned
+			// checkout rather than one still awaiting its subscription webhook.
+			if now.Sub(inst.CreatedAt) > abandonedPlaceholderAfter {
+				if _, err := db.Admin("admin_instances").DeleteOne(ctx,
+					bson.M{"instance_id": inst.InstanceID, "placeholder": true}); err != nil {
+					log.Printf("placeholder reconcile: reap abandoned %s: %v", inst.InstanceID, err)
+				} else {
+					log.Printf("placeholder reconcile: reaped abandoned placeholder %s", inst.InstanceID)
+				}
+			}
+			continue
+		}
+
+		// Paid, self-hosted: nothing to provision — the customer installs and
+		// links, and lifecycle chases them. Only cloud is completed here.
+		if inst.Deployment != license.DeploymentCloud {
+			continue
+		}
+
+		items := make([]catalogue.Item, 0, len(sub.Items))
+		for _, it := range sub.Items {
+			items = append(items, catalogue.Item{PriceID: it.PriceID, Quantity: it.Quantity})
+		}
+		match, err := catalogue.ResolveItems(ctx, paddle.Get().Env(), items)
+		if err != nil {
+			log.Printf("placeholder reconcile: resolve items for %s: %v", inst.InstanceID, err)
+			continue
+		}
+		provisioned, err := completeCloudPlaceholder(ctx, &inst)
+		if err != nil {
+			log.Printf("placeholder reconcile: complete %s: %v", inst.InstanceID, err)
+			continue
+		}
+		if err := promoteAndIssue(ctx, provisioned, match, models.ReasonNew); err != nil {
+			log.Printf("placeholder reconcile: issue %s: %v", inst.InstanceID, err)
+			continue
+		}
+		log.Printf("placeholder reconcile: completed paid cloud instance %s", inst.InstanceID)
+	}
+}
+
+// completeCloudPlaceholder provisions the cloud instance a paid placeholder stands
+// for, once payment is confirmed, and returns the row promoted to a real instance.
+//
+// It is the payment-first half of the paid-cloud flow: createCloudCheckout made
+// the placeholder before payment, this provisions it after. The control-plane
+// instance is created with the placeholder's OWN id (cloudprov.CreateInstanceWithID),
+// so nothing is rewritten and the subscription's custom_data still resolves this
+// row on every later webhook.
+//
+// Every step is idempotent, because a webhook can be retried after this partly
+// ran: provisioning converges rather than duplicates, and the row flip and
+// membership insert are guarded on what they write. The caller then issues.
+func completeCloudPlaceholder(ctx context.Context, inst *models.Instance) (*models.Instance, error) {
+	cu, err := placeholderOwner(ctx, inst)
+	if err != nil {
+		return nil, err
+	}
+
+	prov, err := cloudprov.CreateInstanceWithID(ctx, inst.InstanceID, inst.Name,
+		cu.Email, cu.PasswordHash, cu.UserID)
+	if err != nil {
+		return nil, fmt.Errorf("provision cloud instance %s: %w", inst.InstanceID, err)
+	}
+
+	if _, err := db.Admin("admin_instances").UpdateOne(ctx,
+		bson.M{"instance_id": inst.InstanceID},
+		bson.M{
+			"$set":   bson.M{"slug": prov.Slug, "status": models.StatusActive, "placeholder": false},
+			"$unset": bson.M{"pending_owner_user_id": ""},
+		}); err != nil {
+		return nil, fmt.Errorf("promote placeholder %s: %w", inst.InstanceID, err)
+	}
+
+	// Record the owner's membership. Best-effort and guarded on absence: the
+	// projected user is what grants access, so a missing row costs a line in the
+	// members panel, not access — and the boot backfill rebuilds it.
+	if ownerID, err := cloudprov.OwnerUserID(ctx, inst.InstanceID); err == nil {
+		if n, _ := db.Admin("instance_members").CountDocuments(ctx,
+			bson.M{"instance_id": inst.InstanceID, "customer_user_id": cu.UserID}); n == 0 {
+			if _, err := db.Admin("instance_members").InsertOne(ctx, models.InstanceMember{
+				MemberID:       uuid.NewString(),
+				AccountID:      inst.AccountID,
+				InstanceID:     inst.InstanceID,
+				CustomerUserID: cu.UserID,
+				ControlUserID:  ownerID,
+				Role:           sharedmodels.RoleOwner,
+				Email:          cu.Email,
+				CreatedAt:      time.Now().UTC(),
+			}); err != nil {
+				log.Printf("completeCloudPlaceholder: record owner membership for %s: %v",
+					inst.InstanceID, err)
+			}
+		}
+	}
+
+	next := *inst
+	next.Slug = prov.Slug
+	next.Status = models.StatusActive
+	next.Placeholder = false
+	next.PendingOwnerUserID = ""
+	return &next, nil
+}
+
+// placeholderOwner resolves the customer_user who should own a provisioned cloud
+// placeholder: the buyer recorded at checkout, or the account owner if that
+// pointer is somehow missing.
+func placeholderOwner(ctx context.Context, inst *models.Instance) (*models.CustomerUser, error) {
+	var cu models.CustomerUser
+	if inst.PendingOwnerUserID != "" {
+		if err := db.Admin("customer_users").FindOne(ctx,
+			bson.M{"user_id": inst.PendingOwnerUserID}).Decode(&cu); err == nil {
+			return &cu, nil
+		}
+	}
+	if err := db.Admin("customer_users").FindOne(ctx,
+		bson.M{"account_id": inst.AccountID, "account_role": models.AccountRoleOwner}).Decode(&cu); err != nil {
+		return nil, fmt.Errorf("no owner for account %s to provision %s: %w",
+			inst.AccountID, inst.InstanceID, err)
+	}
+	return &cu, nil
+}

admin/internal/billing/deliver.go

@@ -0,0 +1,24 @@
+package billing
+
+import (
+	"context"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/inject"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+)
+
+// deliver sends a freshly issued licence where it belongs. Cloud is injected;
+// self-hosted is emailed the blob (their database is theirs). This mirrors the
+// api-side deliver helper but takes no gin context — webhooks have none, and the
+// customer is not on the other end of the request.
+func deliver(ctx context.Context, inst *models.Instance, lic *models.License, to string) {
+	if inst.Deployment == license.DeploymentCloud {
+		inject.Deliver(ctx, lic)
+		return
+	}
+	if to != "" && mail.Enabled() {
+		_ = mail.Default.SendLicense(to, inst.Name, lic.Blob)
+	}
+}

admin/internal/billing/events.go

@@ -0,0 +1,51 @@
+// Package billing turns verified Paddle webhooks into licence actions. It never
+// verifies signatures (that is paddle.VerifySignature at the edge) and never
+// signs (that is licensing.Issue); it decides what a subscription's current
+// state means and calls the issuer.
+package billing
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+// Event is the decoded Paddle webhook envelope. Data is left raw so each handler
+// decodes only the shape it needs.
+type Event struct {
+	EventID    string          `json:"event_id"`
+	EventType  string          `json:"event_type"`
+	OccurredAt time.Time       `json:"occurred_at"`
+	Data       json.RawMessage `json:"data"`
+}
+
+// Dispatch routes one event to its handler. Unknown event types are a no-op
+// success: Paddle sends many we do not care about, and 200 stops it retrying.
+func Dispatch(ctx context.Context, ev Event) error {
+	switch ev.EventType {
+	case "subscription.created", "subscription.updated", "subscription.activated":
+		return handleSubscription(ctx, ev)
+	case "subscription.canceled":
+		return handleCanceled(ctx, ev)
+	case "subscription.past_due":
+		return handlePastDue(ctx, ev)
+	case "transaction.completed":
+		return handleTransactionCompleted(ctx, ev)
+	case "transaction.payment_failed":
+		return handlePaymentFailed(ctx, ev)
+	case "customer.updated":
+		return handleCustomerUpdated(ctx, ev)
+	default:
+		return nil
+	}
+}
+
+// decode is a small helper so every handler decodes Data the same way.
+func decode[T any](ev Event) (T, error) {
+	var v T
+	if err := json.Unmarshal(ev.Data, &v); err != nil {
+		return v, fmt.Errorf("decode %s: %w", ev.EventType, err)
+	}
+	return v, nil
+}

admin/internal/billing/subscription.go

@@ -0,0 +1,289 @@
+package billing
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/licensing"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	"github.com/google/uuid"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+// subscriptionData is the slice of Paddle's subscription payload we read. Fields
+// we ignore are simply absent — encoding/json drops them.
+type subscriptionData struct {
+	ID         string `json:"id"`
+	CustomerID string `json:"customer_id"`
+	Status     string `json:"status"`
+	CustomData struct {
+		AccountID  string `json:"account_id"`
+		InstanceID string `json:"instance_id"`
+	} `json:"custom_data"`
+	CurrentBillingPeriod struct {
+		EndsAt time.Time `json:"ends_at"`
+	} `json:"current_billing_period"`
+	Items []struct {
+		Price struct {
+			ID string `json:"id"`
+		} `json:"price"`
+		Quantity int `json:"quantity"`
+	} `json:"items"`
+}
+
+func (d subscriptionData) lineItems() []catalogue.Item {
+	items := make([]catalogue.Item, 0, len(d.Items))
+	for _, it := range d.Items {
+		items = append(items, catalogue.Item{PriceID: it.Price.ID, Quantity: it.Quantity})
+	}
+	return items
+}
+
+// handleSubscription folds created/updated/activated into one job: make the
+// world match the subscription's CURRENT state. That is what keeps out-of-order
+// delivery correct — an updated arriving before its created still carries the
+// full item list, so reading all of it is reading current state, not a
+// transition.
+func handleSubscription(ctx context.Context, ev Event) error {
+	d, err := decode[subscriptionData](ev)
+	if err != nil {
+		return err
+	}
+	if d.CustomData.InstanceID == "" {
+		return fmt.Errorf("subscription %s has no instance_id in custom_data", d.ID)
+	}
+
+	match, err := catalogue.ResolveItems(ctx, paddle.Get().Env(), d.lineItems())
+	if err != nil {
+		// A price we cannot map is a configuration error, not a customer error.
+		// Fail loudly so it is retried and surfaced rather than guessed.
+		return fmt.Errorf("resolve items for subscription %s: %w", d.ID, err)
+	}
+
+	sub := models.Subscription{
+		AccountID:            d.CustomData.AccountID,
+		InstanceID:           d.CustomData.InstanceID,
+		PaddleSubscriptionID: d.ID,
+		Tier:                 match.Tier,
+		Term:                 match.Term,
+		Status:               d.Status,
+		CurrentPeriodEnd:     d.CurrentBillingPeriod.EndsAt,
+		Items:                toSubItems(d.lineItems()),
+	}
+	if err := upsertSubscription(ctx, sub); err != nil {
+		return err
+	}
+
+	// Learn the Paddle customer ID onto the account the first time we see it.
+	if d.CustomerID != "" && d.CustomData.AccountID != "" {
+		_, _ = db.Admin("accounts").UpdateOne(ctx,
+			bson.M{"account_id": d.CustomData.AccountID, "paddle_customer_id": bson.M{"$in": bson.A{nil, ""}}},
+			bson.M{"$set": bson.M{"paddle_customer_id": d.CustomerID}})
+	}
+
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(ctx,
+		bson.M{"instance_id": d.CustomData.InstanceID}).Decode(&inst); err != nil {
+		return fmt.Errorf("subscription %s names unknown instance %s: %w",
+			d.ID, d.CustomData.InstanceID, err)
+	}
+
+	// Placeholders are the payment-first path: the instance does not exist until
+	// this confirmed-payment event. A cloud placeholder is provisioned here and
+	// then issued (first term). A self-hosted placeholder has no UUID to bind to
+	// until the customer pastes their install's — its subscription is recorded and
+	// the link endpoint issues later.
+	reason := models.ReasonEntitlementChange
+	if inst.Placeholder {
+		if inst.Deployment != license.DeploymentCloud {
+			return nil
+		}
+		provisioned, err := completeCloudPlaceholder(ctx, &inst)
+		if err != nil {
+			return err
+		}
+		inst = *provisioned
+		reason = models.ReasonNew
+	}
+
+	return promoteAndIssue(ctx, &inst, match, reason)
+}
+
+// promoteAndIssue promotes desired→granted from the resolved match, then signs a
+// licence from granted. This is the only promotion path other than the staff
+// grant, and it exists because a webhook is a confirmed payment.
+func promoteAndIssue(ctx context.Context, inst *models.Instance, match catalogue.Match, reason string) error {
+	plan, err := models.GetPlan(ctx, inst.Deployment, match.Tier)
+	if err != nil {
+		return fmt.Errorf("no plan for %s/%s: %w", inst.Deployment, match.Tier, err)
+	}
+	granted := models.Config{
+		Servers:  match.Servers,
+		Features: models.Features(match.Features).OrEmpty(),
+	}
+	limits, _, err := catalogue.Resolve(ctx, plan, granted)
+	if err != nil {
+		return err
+	}
+	if err := models.UpsertEntitlement(ctx, models.Entitlement{
+		InstanceID:     inst.InstanceID,
+		AccountID:      inst.AccountID,
+		Deployment:     inst.Deployment,
+		Tier:           match.Tier,
+		Term:           match.Term,
+		Desired:        granted,
+		Granted:        granted,
+		ResolvedLimits: limits,
+	}); err != nil {
+		return err
+	}
+
+	lic, err := licensing.Issue(ctx, licensing.IssueInput{
+		InstanceID: inst.InstanceID,
+		Tier:       match.Tier,
+		Term:       match.Term,
+		Reason:     reason,
+		IssuedBy:   "paddle",
+	})
+	if err != nil {
+		return fmt.Errorf("issue for %s: %w", inst.InstanceID, err)
+	}
+	deliver(ctx, inst, lic, billingEmailFor(ctx, inst.AccountID))
+	return nil
+}
+
+// handleCanceled marks the SUBSCRIPTION cancelled and takes NO licence action.
+//
+// The instance stays active until its licence expires, when the existing
+// lifecycle sweep lapses it. Flipping the instance to cancelled here would stop
+// inject.Reconcile and the sweep repairing a licence that is still valid — the
+// opposite of "keeps working until it expires".
+func handleCanceled(ctx context.Context, ev Event) error {
+	d, err := decode[subscriptionData](ev)
+	if err != nil {
+		return err
+	}
+	if _, err := db.Admin("subscriptions").UpdateOne(ctx,
+		bson.M{"paddle_subscription_id": d.ID},
+		bson.M{"$set": bson.M{"status": models.SubCanceled}}); err != nil {
+		return err
+	}
+	if to := billingEmailFor(ctx, d.CustomData.AccountID); to != "" {
+		_ = mail.Default.SendCancelled(to, instanceNameFor(ctx, d.CustomData.InstanceID))
+	}
+	return nil
+}
+
+// handlePastDue flags the subscription and notifies, but leaves the licence
+// alone. Dunning is Paddle's; ours is not to punish a retryable card failure.
+func handlePastDue(ctx context.Context, ev Event) error {
+	d, err := decode[subscriptionData](ev)
+	if err != nil {
+		return err
+	}
+	if _, err := db.Admin("subscriptions").UpdateOne(ctx,
+		bson.M{"paddle_subscription_id": d.ID},
+		bson.M{"$set": bson.M{"status": models.SubPastDue}}); err != nil {
+		return err
+	}
+	if to := billingEmailFor(ctx, d.CustomData.AccountID); to != "" {
+		_ = mail.Default.SendPastDue(to, instanceNameFor(ctx, d.CustomData.InstanceID))
+	}
+	return nil
+}
+
+// handleCustomerUpdated syncs the billing email onto the account.
+func handleCustomerUpdated(ctx context.Context, ev Event) error {
+	d, err := decode[struct {
+		ID    string `json:"id"`
+		Email string `json:"email"`
+	}](ev)
+	if err != nil {
+		return err
+	}
+	if d.ID == "" || d.Email == "" {
+		return nil
+	}
+	_, err = db.Admin("accounts").UpdateOne(ctx,
+		bson.M{"paddle_customer_id": d.ID},
+		bson.M{"$set": bson.M{"billing_email": d.Email}})
+	return err
+}
+
+// IssueForInstance issues from an instance's recorded subscription. Called when
+// a self-hosted customer finally links a placeholder they have already paid for.
+func IssueForInstance(ctx context.Context, instanceID string) error {
+	var sub models.Subscription
+	if err := db.Admin("subscriptions").FindOne(ctx,
+		bson.M{"instance_id": instanceID, "status": models.SubActive}).Decode(&sub); err != nil {
+		return fmt.Errorf("no active subscription for %s: %w", instanceID, err)
+	}
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(ctx,
+		bson.M{"instance_id": instanceID}).Decode(&inst); err != nil {
+		return err
+	}
+	items := make([]catalogue.Item, 0, len(sub.Items))
+	for _, it := range sub.Items {
+		items = append(items, catalogue.Item{PriceID: it.PriceID, Quantity: it.Quantity})
+	}
+	match, err := catalogue.ResolveItems(ctx, paddle.Get().Env(), items)
+	if err != nil {
+		return err
+	}
+	return promoteAndIssue(ctx, &inst, match, models.ReasonNew)
+}
+
+func toSubItems(items []catalogue.Item) []models.SubItem {
+	out := make([]models.SubItem, 0, len(items))
+	for _, it := range items {
+		out = append(out, models.SubItem{PriceID: it.PriceID, Quantity: it.Quantity})
+	}
+	return out
+}
+
+func upsertSubscription(ctx context.Context, sub models.Subscription) error {
+	_, err := db.Admin("subscriptions").UpdateOne(ctx,
+		bson.M{"paddle_subscription_id": sub.PaddleSubscriptionID},
+		bson.M{"$set": bson.M{
+			"account_id":         sub.AccountID,
+			"instance_id":        sub.InstanceID,
+			"tier":               sub.Tier,
+			"term":               sub.Term,
+			"status":             sub.Status,
+			"current_period_end": sub.CurrentPeriodEnd,
+			"items":              sub.Items,
+		}, "$setOnInsert": bson.M{
+			"subscription_id":        uuid.NewString(),
+			"paddle_subscription_id": sub.PaddleSubscriptionID,
+		}},
+		options.UpdateOne().SetUpsert(true))
+	return err
+}
+
+// billingEmailFor reads the account's billing email for self-hosted delivery.
+func billingEmailFor(ctx context.Context, accountID string) string {
+	var acc models.Account
+	if err := db.Admin("accounts").FindOne(ctx,
+		bson.M{"account_id": accountID}).Decode(&acc); err != nil {
+		return ""
+	}
+	return acc.BillingEmail
+}
+
+// instanceNameFor is a best-effort display name for an email subject.
+func instanceNameFor(ctx context.Context, instanceID string) string {
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(ctx,
+		bson.M{"instance_id": instanceID}).Decode(&inst); err != nil || inst.Name == "" {
+		return "your instance"
+	}
+	return inst.Name
+}

admin/internal/billing/transaction.go

@@ -0,0 +1,124 @@
+package billing
+
+import (
+	"context"
+	"fmt"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/paddle"
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+type transactionData struct {
+	ID             string `json:"id"`
+	SubscriptionID string `json:"subscription_id"`
+	Origin         string `json:"origin"`
+	Items          []struct {
+		Price struct {
+			ID string `json:"id"`
+		} `json:"price"`
+		Quantity int `json:"quantity"`
+	} `json:"items"`
+}
+
+// handleTransactionCompleted issues the next term's licence on a renewal.
+//
+// A renewal is the one moment a scheduled REDUCTION takes effect: the customer's
+// desired (smaller) configuration becomes granted. Mid-term reductions never
+// shrink a live licence. On a first charge (origin not recurring) the
+// subscription.created/updated handler already issued, so this is a no-op to
+// avoid a double issue.
+func handleTransactionCompleted(ctx context.Context, ev Event) error {
+	d, err := decode[transactionData](ev)
+	if err != nil {
+		return err
+	}
+	if d.Origin != "subscription_recurring" {
+		return nil
+	}
+	if d.SubscriptionID == "" {
+		return fmt.Errorf("renewal transaction %s has no subscription_id", d.ID)
+	}
+
+	var sub models.Subscription
+	if err := db.Admin("subscriptions").FindOne(ctx,
+		bson.M{"paddle_subscription_id": d.SubscriptionID}).Decode(&sub); err != nil {
+		return fmt.Errorf("renewal for unknown subscription %s: %w", d.SubscriptionID, err)
+	}
+
+	var inst models.Instance
+	if err := db.Admin("admin_instances").FindOne(ctx,
+		bson.M{"instance_id": sub.InstanceID}).Decode(&inst); err != nil {
+		return fmt.Errorf("renewal names unknown instance %s: %w", sub.InstanceID, err)
+	}
+
+	// Prefer the transaction's own item list (authoritative for this period);
+	// fall back to the subscription's recorded items.
+	items := make([]catalogue.Item, 0, len(d.Items))
+	for _, it := range d.Items {
+		items = append(items, catalogue.Item{PriceID: it.Price.ID, Quantity: it.Quantity})
+	}
+	if len(items) == 0 {
+		for _, it := range sub.Items {
+			items = append(items, catalogue.Item{PriceID: it.PriceID, Quantity: it.Quantity})
+		}
+	}
+	match, err := catalogue.ResolveItems(ctx, paddle.Get().Env(), items)
+	if err != nil {
+		return fmt.Errorf("resolve renewal items for %s: %w", d.SubscriptionID, err)
+	}
+
+	// Collapse a scheduled reduction: desired becomes granted, and the pending
+	// marker is cleared, since a new term has begun. This is the only place a
+	// licence ever gets a smaller cap.
+	if err := promoteScheduledReduction(ctx, inst.InstanceID); err != nil {
+		return err
+	}
+
+	// Issue the next term. Renewal resets relink_count inside licensing.Issue.
+	if err := promoteAndIssue(ctx, &inst, match, models.ReasonRenewal); err != nil {
+		return err
+	}
+
+	// Clear lifecycle notices so the next term starts the sequence fresh (mirrors
+	// the self-serve renew path).
+	_, _ = db.Admin("admin_instances").UpdateOne(ctx,
+		bson.M{"instance_id": inst.InstanceID},
+		bson.M{"$unset": bson.M{"notices_sent": ""}})
+	return nil
+}
+
+// promoteScheduledReduction collapses a pending reduction into granted at
+// renewal and clears scheduled_change_at. A no-op when nothing is pending — the
+// match resolved from the renewal's items is authoritative either way, so this
+// only keeps the entitlement's own bookkeeping honest.
+func promoteScheduledReduction(ctx context.Context, instanceID string) error {
+	ent, err := models.GetEntitlement(ctx, instanceID)
+	if err != nil {
+		return nil // no entitlement to reconcile
+	}
+	if ent.ScheduledChangeAt == nil {
+		return nil
+	}
+	ent.Granted = ent.Desired
+	ent.ScheduledChangeAt = nil
+	return models.UpsertEntitlement(ctx, *ent)
+}
+
+// handlePaymentFailed records the failure for staff visibility. No licence
+// action — the licence runs to its (grace-padded) expiry and Paddle retries.
+func handlePaymentFailed(ctx context.Context, ev Event) error {
+	d, err := decode[transactionData](ev)
+	if err != nil {
+		return err
+	}
+	if d.SubscriptionID == "" {
+		return nil
+	}
+	_, err = db.Admin("subscriptions").UpdateOne(ctx,
+		bson.M{"paddle_subscription_id": d.SubscriptionID},
+		bson.M{"$set": bson.M{"status": models.SubPastDue}})
+	return err
+}

admin/internal/catalogue/catalogue.go

@@ -0,0 +1,120 @@
+// Package catalogue turns an entitlement into the two things derived from it:
+// the limits and features a licence grants, and the Paddle line items a
+// subscription is made of.
+//
+// Both folds live here so the arithmetic exists once. The temptation is to
+// compute limits in the issuer and quantities in the checkout, and then the two
+// disagree about whether the base allowance is included in the number — which is
+// a bug that bills a customer for three servers they were given.
+package catalogue
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+)
+
+var (
+	// ErrUnknownPrice means an item named a price ID no catalogue row claims.
+	//
+	// This is always a configuration error and never a customer error: someone
+	// bought something at a price we cannot map to a plan. It must fail loudly
+	// rather than guess a tier — a guessed tier is a wrong licence with no
+	// record of why.
+	ErrUnknownPrice = errors.New("no catalogue row claims that price ID")
+
+	// ErrNoBaseItem means no item matched a base row, so the subscription names
+	// no plan. Quantities are meaningless without one.
+	ErrNoBaseItem = errors.New("no item matches a base price; the subscription names no plan")
+
+	// ErrTermNotSold means a price resolved to a term its deployment does not
+	// sell — in practice a self-hosted monthly price.
+	ErrTermNotSold = errors.New("that deployment does not sell that term")
+
+	// ErrUnpriced means a component needed for this configuration has no price
+	// ID in this environment. Refusing is correct: a checkout that silently
+	// drops a paid line item gives away the thing it was meant to charge for.
+	ErrUnpriced = errors.New("component has no price in this environment")
+)
+
+// Resolve folds a configuration into the limits and features a licence grants.
+//
+// Limits start at the plan's base and each metered component adds its configured
+// amount. Features are the plan's base features plus the configured ones,
+// deduplicated and filtered to keys the catalogue actually offers — a stale
+// feature key in a stored entitlement must not survive into a signed payload.
+func Resolve(ctx context.Context, plan *models.Plan, cfg models.Config) (license.Limits, []string, error) {
+	rows, err := models.CatalogueFor(ctx, plan.Deployment, plan.Tier)
+	if err != nil {
+		return license.Limits{}, nil, err
+	}
+
+	limits := plan.BaseLimits
+	offered := map[string]bool{}
+	for _, r := range rows {
+		switch r.Kind {
+		case models.KindLimit:
+			if err := addLimit(&limits, r.LimitKey, configured(cfg, r.LimitKey), plan.BaseLimits); err != nil {
+				return license.Limits{}, nil, err
+			}
+		case models.KindFeature:
+			offered[r.FeatureKey] = true
+		}
+	}
+
+	seen := map[string]bool{}
+	features := []string{}
+	for _, f := range plan.BaseFeatures {
+		if !seen[f] {
+			seen[f] = true
+			features = append(features, f)
+		}
+	}
+	for _, f := range cfg.Features {
+		if seen[f] || !offered[f] {
+			continue
+		}
+		seen[f] = true
+		features = append(features, f)
+	}
+	return limits, features, nil
+}
+
+// configured reads the configured total for one metered limit key.
+//
+// A switch rather than reflection, so every metered dimension is greppable and
+// adding one is a visible edit here as well as a catalogue row.
+func configured(cfg models.Config, limitKey string) int {
+	switch limitKey {
+	case models.LimitKeyServers:
+		return cfg.Servers
+	default:
+		return 0
+	}
+}
+
+// addLimit sets a metered limit to its configured total.
+//
+// The configured value is a TOTAL, not an increment, so this assigns rather than
+// adds. A base of Unlimited is left alone: nothing can be added to no cap, and a
+// plan that meters an already-unlimited dimension is a configuration mistake
+// rather than something to compute around.
+func addLimit(l *license.Limits, limitKey string, total int, base license.Limits) error {
+	switch limitKey {
+	case models.LimitKeyServers:
+		if base.MaxServers == license.Unlimited {
+			return nil
+		}
+		if total > base.MaxServers {
+			l.MaxServers = total
+		}
+		return nil
+	case "":
+		return fmt.Errorf("catalogue limit row has no limit_key")
+	default:
+		return fmt.Errorf("%w: limit_key %q", ErrUnknownPrice, limitKey)
+	}
+}

admin/internal/catalogue/items.go

@@ -0,0 +1,206 @@
+package catalogue
+
+import (
+	"context"
+	"fmt"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+)
+
+// Item is one Paddle line item: a price and how many of it.
+type Item struct {
+	PriceID  string `json:"price_id"`
+	Quantity int    `json:"quantity"`
+}
+
+// LineItems builds the subscription items for a configuration.
+//
+// The base row is always quantity 1. A metered row's quantity is the configured
+// TOTAL minus the plan's base allowance, so a Professional customer at exactly
+// three servers has a single-item subscription rather than one with a zero
+// quantity Paddle would reject. A feature with no price in this environment
+// produces no item and is granted free.
+func LineItems(ctx context.Context, env, term string, plan *models.Plan, cfg models.Config) ([]Item, error) {
+	if !sells(plan.Deployment, term) {
+		return nil, fmt.Errorf("%w: %s does not sell %s", ErrTermNotSold, plan.Deployment, term)
+	}
+	rows, err := models.CatalogueFor(ctx, plan.Deployment, plan.Tier)
+	if err != nil {
+		return nil, err
+	}
+	if len(rows) == 0 {
+		return nil, fmt.Errorf("%w: %s/%s is priced by nothing",
+			ErrUnpriced, plan.Deployment, plan.Tier)
+	}
+
+	wanted := map[string]bool{}
+	for _, f := range cfg.Features {
+		wanted[f] = true
+	}
+
+	items := []Item{}
+	for _, r := range rows {
+		switch r.Kind {
+		case models.KindBase:
+			id := r.PriceID(env, term)
+			if id == "" {
+				return nil, fmt.Errorf("%w: base price for %s/%s in %s",
+					ErrUnpriced, plan.Deployment, plan.Tier, env)
+			}
+			items = append(items, Item{PriceID: id, Quantity: 1})
+
+		case models.KindLimit:
+			qty := billable(cfg, r.LimitKey, plan.BaseLimits)
+			if qty <= 0 {
+				continue
+			}
+			id := r.PriceID(env, term)
+			if id == "" {
+				return nil, fmt.Errorf("%w: %s price for %s/%s in %s",
+					ErrUnpriced, r.LimitKey, plan.Deployment, plan.Tier, env)
+			}
+			items = append(items, Item{PriceID: id, Quantity: qty})
+
+		case models.KindFeature:
+			if !wanted[r.FeatureKey] {
+				continue
+			}
+			id := r.PriceID(env, term)
+			if id == "" {
+				// Free to toggle. Resolve() still grants it.
+				continue
+			}
+			items = append(items, Item{PriceID: id, Quantity: 1})
+		}
+	}
+	return items, nil
+}
+
+// billable is how many UNITS to charge for a metered dimension.
+//
+// The configured value is the total the customer sees, which includes the base
+// allowance they were given. Charging for that base is the single most likely
+// bug in this file, so the subtraction lives here and nowhere else.
+func billable(cfg models.Config, limitKey string, base license.Limits) int {
+	switch limitKey {
+	case models.LimitKeyServers:
+		if base.MaxServers == license.Unlimited {
+			return 0
+		}
+		return cfg.Servers - base.MaxServers
+	default:
+		return 0
+	}
+}
+
+// Match is what an item list says about itself.
+type Match struct {
+	Deployment string
+	Tier       string
+	Term       string
+	Servers    int
+	Features   []string
+}
+
+// ResolveItems maps a full item list back to a plan and a configuration.
+//
+// This replaces a price-ID-to-tier lookup, which cannot work once a subscription
+// has several prices. The base item identifies the plan and the term; everything
+// else is read relative to it. An item matching nothing fails the whole list.
+//
+// Only the running environment's IDs are consulted, so a production process
+// cannot be talked into resolving a sandbox price by a forged or misrouted
+// event.
+//
+// It is a function of the COMPLETE list, which is what keeps out-of-order
+// delivery correct by construction: Paddle sends every item on every
+// subscription event, so reading all of them is reading current state rather
+// than a transition.
+func ResolveItems(ctx context.Context, env string, items []Item) (Match, error) {
+	all, err := models.AllCatalogue(ctx)
+	if err != nil {
+		return Match{}, err
+	}
+
+	// Pass 1: find the base item. Until we know the plan, no other item means
+	// anything — a quantity of 7 is 7 of what?
+	var m Match
+	found := false
+	for _, it := range items {
+		for _, r := range all {
+			if r.Kind != models.KindBase {
+				continue
+			}
+			for _, term := range []string{"monthly", "annual"} {
+				if r.PriceID(env, term) != it.PriceID || it.PriceID == "" {
+					continue
+				}
+				if found {
+					return Match{}, fmt.Errorf(
+						"item list names two plans: %s/%s and %s/%s",
+						m.Deployment, m.Tier, r.Deployment, r.Tier)
+				}
+				m.Deployment, m.Tier, m.Term = r.Deployment, r.Tier, term
+				found = true
+			}
+		}
+	}
+	if !found {
+		return Match{}, ErrNoBaseItem
+	}
+	if !sells(m.Deployment, m.Term) {
+		return Match{}, fmt.Errorf("%w: price resolves to %s %s; remove it from the catalogue",
+			ErrTermNotSold, m.Deployment, m.Term)
+	}
+
+	plan, err := models.GetPlan(ctx, m.Deployment, m.Tier)
+	if err != nil {
+		return Match{}, fmt.Errorf("item list names plan %s/%s, which does not exist: %w",
+			m.Deployment, m.Tier, err)
+	}
+	m.Servers = plan.BaseLimits.MaxServers
+	m.Features = []string{}
+
+	// Pass 2: everything else, relative to that plan. An item matching no row of
+	// this plan is a configuration error even if it matches some other plan's
+	// row — mixing two plans in one subscription is not a thing we sell.
+	rows, err := models.CatalogueFor(ctx, m.Deployment, m.Tier)
+	if err != nil {
+		return Match{}, err
+	}
+	for _, it := range items {
+		matched := false
+		for _, r := range rows {
+			if r.PriceID(env, m.Term) != it.PriceID {
+				continue
+			}
+			matched = true
+			switch r.Kind {
+			case models.KindBase:
+				// Already handled.
+			case models.KindLimit:
+				if r.LimitKey == models.LimitKeyServers {
+					m.Servers = plan.BaseLimits.MaxServers + it.Quantity
+				}
+			case models.KindFeature:
+				m.Features = append(m.Features, r.FeatureKey)
+			}
+		}
+		if !matched {
+			return Match{}, fmt.Errorf("%w: %s (environment %s, plan %s/%s)",
+				ErrUnknownPrice, it.PriceID, env, m.Deployment, m.Tier)
+		}
+	}
+	return m, nil
+}
+
+// sells reports whether a deployment offers a term.
+func sells(deployment, term string) bool {
+	for _, t := range license.TermsFor(deployment) {
+		if t == term {
+			return true
+		}
+	}
+	return false
+}

admin/internal/cloudprov/cloudprov.go

@@ -15,9 +15,10 @@ import (
 	"context"
 	"fmt"
 
-	"github.com/mrhid6/vantage/admin/internal/db"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
-	"github.com/mrhid6/vantage/shared/provision"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/provision"
+	"github.com/google/uuid"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 
@@ -32,11 +33,29 @@ import (
 // On owner-insert failure the instance is rolled back, so a failed provision
 // never leaves a slug permanently occupied by an instance nobody owns.
 func CreateInstance(ctx context.Context, name, ownerEmail, ownerPasswordHash, hqUserID string) (*sharedmodels.Instance, error) {
-	inst, err := provision.CreateInstance(ctx, db.ControlDB(), name)
+	return CreateInstanceWithID(ctx, uuid.NewString(), name, ownerEmail, ownerPasswordHash, hqUserID)
+}
+
+// CreateInstanceWithID provisions a cloud instance under a caller-supplied ID and
+// its owner. It backs the paid-cloud flow, where the ID is a placeholder created
+// before payment and provisioning runs on the confirmed-payment webhook (see
+// provision.CreateInstanceWithID).
+//
+// It is idempotent, because a webhook can be retried after provisioning partly
+// completed: the instance is created only if absent, and the owner only if the
+// instance has none yet. A second call therefore converges to the same state
+// rather than colliding on the per-instance email unique index.
+func CreateInstanceWithID(ctx context.Context, instanceID, name, ownerEmail, ownerPasswordHash, hqUserID string) (*sharedmodels.Instance, error) {
+	inst, err := provision.CreateInstanceWithID(ctx, db.ControlDB(), instanceID, name)
 	if err != nil {
 		return nil, err
 	}
 
+	// A retry that already created the owner must not create a second one.
+	if _, err := OwnerUserID(ctx, inst.InstanceID); err == nil {
+		return inst, nil
+	}
+
 	u, err := provision.CreateUserWithHash(ctx, db.ControlDB(), inst.InstanceID,
 		ownerEmail, ownerPasswordHash, sharedmodels.RoleOwner, sharedmodels.AuthHQ)
 	if err != nil {

admin/internal/config/config.go

@@ -29,6 +29,10 @@ type Config struct {
 	Addr            string
 	ReapAfter       time.Duration
 
+	PaddleEnv           string // "sandbox" or "production"
+	PaddleAPIKey        string
+	PaddleWebhookSecret string
+
 	SMTPHost     string
 	SMTPPort     string
 	SMTPFrom     string
@@ -75,6 +79,10 @@ func Load() (Config, error) {
 		SMTPFrom:     os.Getenv("SMTP_FROM"),
 		SMTPUsername: os.Getenv("SMTP_USERNAME"),
 		SMTPPassword: os.Getenv("SMTP_PASSWORD"),
+
+		PaddleEnv:           envOr("PADDLE_ENV", "sandbox"),
+		PaddleAPIKey:        os.Getenv("PADDLE_API_KEY"),
+		PaddleWebhookSecret: os.Getenv("PADDLE_WEBHOOK_SECRET"),
 	}
 
 	var missing []string
@@ -85,6 +93,10 @@ func Load() (Config, error) {
 		"LICENSE_SIGNING_KEY": c.SigningKey,
 		"PUBLIC_URL":          c.PublicURL,
 		"ADMIN_ORIGIN":        os.Getenv("ADMIN_ORIGIN"),
+		// An unverified webhook endpoint is one anyone can issue licences
+		// through, so the secret and API key are boot-required.
+		"PADDLE_API_KEY":        c.PaddleAPIKey,
+		"PADDLE_WEBHOOK_SECRET": c.PaddleWebhookSecret,
 	} {
 		if v == "" {
 			missing = append(missing, name)

admin/internal/db/db.go

@@ -11,9 +11,10 @@ package db
 import (
 	"context"
 	"fmt"
+	"log"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/config"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/config"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo"
 	"go.mongodb.org/mongo-driver/v2/mongo/options"
@@ -84,7 +85,7 @@ func EnsureIndexes(ctx context.Context) error {
 		{"accounts", "account_id"},
 		{"admin_instances", "instance_id"},
 		{"licenses", "license_id"},
-		{"plans", "tier"},
+		{"paddle_events", "event_id"},
 		{"staff_users", "email"},
 		{"customer_users", "email"},
 	}
@@ -106,6 +107,34 @@ func EnsureIndexes(ctx context.Context) error {
 		return fmt.Errorf("index subscriptions.paddle_subscription_id: %w", err)
 	}
 
+	// plans was unique on tier alone until spec 7. Mongo will not replace an
+	// index implicitly, and the old one would refuse the second row of every
+	// tier, so it is dropped by name here. Dropping a missing index is not an
+	// error worth failing boot over — a fresh database has never had it.
+	if err := Admin("plans").Indexes().DropOne(ctx, "tier_unique"); err != nil {
+		log.Printf("index plans.tier_unique: not dropped (%v); expected on a fresh database", err)
+	}
+
+	for _, u := range []struct {
+		coll string
+		keys bson.D
+		name string
+	}{
+		{"plans", bson.D{{Key: "deployment", Value: 1}, {Key: "tier", Value: 1}}, "deployment_tier_unique"},
+		{"catalogue", bson.D{
+			{Key: "deployment", Value: 1}, {Key: "tier", Value: 1}, {Key: "kind", Value: 1},
+			{Key: "limit_key", Value: 1}, {Key: "feature_key", Value: 1},
+		}, "component_unique"},
+		{"entitlements", bson.D{{Key: "instance_id", Value: 1}}, "instance_id_unique"},
+	} {
+		if _, err := Admin(u.coll).Indexes().CreateOne(ctx, mongo.IndexModel{
+			Keys:    u.keys,
+			Options: options.Index().SetUnique(true).SetName(u.name),
+		}); err != nil {
+			return fmt.Errorf("index %s.%s: %w", u.coll, u.name, err)
+		}
+	}
+
 	for _, idx := range []struct {
 		coll string
 		keys bson.D

admin/internal/hqsync/hqsync.go

@@ -13,9 +13,9 @@ import (
 	"log"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/cloudprov"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/cloudprov"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 

admin/internal/inject/inject.go

@@ -12,10 +12,10 @@ import (
 	"log"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo"
 )

admin/internal/licensing/issue.go

@@ -5,20 +5,22 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/catalogue"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 
 var (
 	ErrUnknownTier        = errors.New("unknown tier")
 	ErrDeploymentMismatch = errors.New("that plan is not available for this deployment type")
-	ErrFreeLimit          = errors.New("this account already has a Free instance")
+	ErrFreeLimit          = errors.New("this account already has a Free instance of that deployment type")
 	ErrUnknownInstance    = errors.New("instance not found")
 )
 
@@ -54,7 +56,10 @@ func Issue(ctx context.Context, in IssueInput) (*models.License, error) {
 		return nil, ErrUnknownInstance
 	}
 
-	plan, err := models.GetPlan(ctx, in.Tier)
+	// The plan is looked up by the INSTANCE's deployment, not by a caller's
+	// guess. That is what makes the deployment comparison below a consistency
+	// check rather than the thing that decides which plan applies.
+	plan, err := models.GetPlan(ctx, inst.Deployment, in.Tier)
 	if err != nil {
 		return nil, ErrUnknownTier
 	}
@@ -67,11 +72,35 @@ func Issue(ctx context.Context, in IssueInput) (*models.License, error) {
 	}
 
 	if plan.Tier == license.TierFree {
-		if err := checkFreeLimit(ctx, inst.AccountID, inst.InstanceID); err != nil {
+		if err := checkFreeLimit(ctx, inst.AccountID, inst.Deployment, inst.InstanceID); err != nil {
 			return nil, err
 		}
 	}
 
+	// What this licence grants comes from the instance's entitlement, not from
+	// the plan. The plan is only the base.
+	//
+	// An instance with no entitlement gets the plan's base, which covers staff
+	// manual issuance and anything predating the backfill. Falling back is
+	// deliberate: refusing here would make a missing row an outage rather than a
+	// default.
+	limits, features := plan.BaseLimits, []string(plan.BaseFeatures.OrEmpty())
+	ent, entErr := models.GetEntitlement(ctx, inst.InstanceID)
+	switch {
+	case entErr == nil:
+		// Granted, never Desired. A configuration nobody has paid for must not
+		// reach a signed payload.
+		limits, features, err = catalogue.Resolve(ctx, plan, ent.Granted)
+		if err != nil {
+			return nil, fmt.Errorf("resolve entitlement: %w", err)
+		}
+	case errors.Is(entErr, models.ErrNoEntitlement):
+		log.Printf("licensing: instance %s has no entitlement; issuing plan base",
+			inst.InstanceID)
+	default:
+		return nil, fmt.Errorf("read entitlement: %w", entErr)
+	}
+
 	now := time.Now().UTC()
 	expires := in.ExpiresAt
 	if expires.IsZero() {
@@ -94,10 +123,11 @@ func Issue(ctx context.Context, in IssueInput) (*models.License, error) {
 		Deployment:   plan.Deployment,
 		IssuedAt:     now,
 		ExpiresAt:    expires,
-		// Snapshotted, not referenced: editing a plan tomorrow must not change
-		// what this licence grants.
-		Limits:   plan.Limits,
-		Features: plan.Features.OrEmpty(),
+		// Snapshotted, not referenced: editing a plan or an entitlement tomorrow
+		// must not change what this licence grants.
+		Limits:       limits,
+		Features:     features,
+		SupportLevel: plan.SupportLevel,
 	}
 
 	blob, err := license.Sign(payload, signingKey)
@@ -111,8 +141,8 @@ func Issue(ctx context.Context, in IssueInput) (*models.License, error) {
 		AccountID:  inst.AccountID,
 		Tier:       plan.Tier,
 		Deployment: plan.Deployment,
-		Limits:     plan.Limits,
-		Features:   plan.Features.OrEmpty(),
+		Limits:     limits,
+		Features:   models.Features(features).OrEmpty(),
 		IssuedAt:   now,
 		ExpiresAt:  expires,
 		Blob:       blob,
@@ -157,13 +187,19 @@ func Issue(ctx context.Context, in IssueInput) (*models.License, error) {
 	return &rec, nil
 }
 
-// checkFreeLimit enforces one Free instance per account.
+// checkFreeLimit enforces one Free instance per account PER DEPLOYMENT.
+//
+// It used to be one per account, which was sufficient while Free existed only on
+// cloud. With a self-hosted Free plan, an account-wide count would refuse a
+// self-hosted Free instance to anyone holding a cloud one, and tell them about a
+// limit they have not reached.
 //
 // Cancelled instances do not count: a customer who cancelled their Free instance
 // is allowed another one.
-func checkFreeLimit(ctx context.Context, accountID, exceptInstanceID string) error {
+func checkFreeLimit(ctx context.Context, accountID, deployment, exceptInstanceID string) error {
 	n, err := db.Admin("admin_instances").CountDocuments(ctx, bson.M{
 		"account_id":  accountID,
+		"deployment":  deployment,
 		"tier":        license.TierFree,
 		"status":      bson.M{"$ne": models.StatusCancelled},
 		"instance_id": bson.M{"$ne": exceptInstanceID},

admin/internal/licensing/link.go

@@ -6,11 +6,11 @@ import (
 	"fmt"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/audit"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/audit"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo"
 )

admin/internal/lifecycle/lifecycle.go

@@ -11,10 +11,10 @@ import (
 	"slices"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/admin/internal/mail"
-	"github.com/mrhid6/vantage/admin/internal/models"
-	"github.com/mrhid6/vantage/shared/license"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/mail"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/models"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 
@@ -77,6 +77,16 @@ func Run(ctx context.Context) error {
 			}
 		}
 
+		if lic.ExpiresAt.Add(reapAfter).Before(now) {
+			if _, err := db.Admin("admin_instances").DeleteOne(ctx, bson.M{"instance_id": inst.InstanceID}); err != nil {
+				log.Printf("lifecycle: delete instance %s: %v", inst.InstanceID, err)
+			}
+
+			if _, err := db.Admin("licenses").DeleteMany(ctx, bson.M{"instance_id": inst.InstanceID}); err != nil {
+				log.Printf("lifecycle: delete licenses for instance %s: %v", inst.InstanceID, err)
+			}
+		}
+
 		due := dueNotice(now, lic.ExpiresAt, inst.NoticesSent)
 		if due == "" {
 			continue
@@ -133,13 +143,13 @@ func sendNotice(ctx context.Context, inst models.Instance, lic models.License, k
 
 	switch key {
 	case noticeExpiring:
-		return mail.SendExpiring(to, inst.Name, portalURL, lic.ExpiresAt)
+		return mail.Default.SendExpiring(to, inst.Name, portalURL, lic.ExpiresAt)
 	case noticeExpired:
-		return mail.SendExpired(to, inst.Name, portalURL, deleteOn)
+		return mail.Default.SendExpired(to, inst.Name, portalURL, deleteOn)
 	case noticeDelete7:
-		return mail.SendDeletionWarning(to, inst.Name, portalURL, deleteOn, 7)
+		return mail.Default.SendDeletionWarning(to, inst.Name, portalURL, deleteOn, 7)
 	case noticeDelete1:
-		return mail.SendDeletionWarning(to, inst.Name, portalURL, deleteOn, 1)
+		return mail.Default.SendDeletionWarning(to, inst.Name, portalURL, deleteOn, 1)
 	}
 	return nil
 }
@@ -172,4 +182,74 @@ func runOnce(ctx context.Context) {
 	if err := Run(runCtx); err != nil {
 		log.Printf("lifecycle: %v", err)
 	}
+	sweepAwaitingLink(runCtx)
+}
+
+// Awaiting-link reminder keys.
+const (
+	noticeLink24 = "link_24"
+	noticeLink72 = "link_72"
+)
+
+// sweepAwaitingLink chases self-hosted instances that were paid for but never
+// linked: the subscription exists, the instance is still a placeholder. It
+// emails a reminder at 24h and again at 72h. The staff dashboard already flags
+// 48h; this is the active chasing on top of that. It never issues or deletes.
+func sweepAwaitingLink(ctx context.Context) {
+	cur, err := db.Admin("admin_instances").Find(ctx, bson.M{
+		"deployment":  license.DeploymentSelfHosted,
+		"placeholder": true,
+		"status":      models.StatusAwaitingLink,
+	})
+	if err != nil {
+		return
+	}
+	var instances []models.Instance
+	if err := cur.All(ctx, &instances); err != nil {
+		return
+	}
+	now := time.Now().UTC()
+	for _, inst := range instances {
+		// Only chase placeholders a customer has actually paid for.
+		n, err := db.Admin("subscriptions").CountDocuments(ctx,
+			bson.M{"instance_id": inst.InstanceID, "status": models.SubActive})
+		if err != nil || n == 0 {
+			continue
+		}
+		if !mail.Enabled() {
+			continue
+		}
+		to := accountEmail(ctx, inst.AccountID)
+		if to == "" {
+			continue
+		}
+		age := now.Sub(inst.CreatedAt)
+		var due string
+		if age > 72*time.Hour && !slices.Contains(inst.NoticesSent, noticeLink72) {
+			due = noticeLink72
+		} else if age > 24*time.Hour && !slices.Contains(inst.NoticesSent, noticeLink24) {
+			due = noticeLink24
+		}
+		if due == "" {
+			continue
+		}
+		if err := mail.Default.SendLinkReminder(to, inst.Name); err != nil {
+			log.Printf("lifecycle: link reminder %s for %s: %v", due, inst.InstanceID, err)
+			continue
+		}
+		if _, err := db.Admin("admin_instances").UpdateOne(ctx,
+			bson.M{"instance_id": inst.InstanceID},
+			bson.M{"$addToSet": bson.M{"notices_sent": due}}); err != nil {
+			log.Printf("lifecycle: record link notice %s for %s: %v", due, inst.InstanceID, err)
+		}
+	}
+}
+
+func accountEmail(ctx context.Context, accountID string) string {
+	var acct models.Account
+	if err := db.Admin("accounts").FindOne(ctx,
+		bson.M{"account_id": accountID}).Decode(&acct); err != nil {
+		return ""
+	}
+	return acct.BillingEmail
 }

admin/internal/mail/mail.go

@@ -1,226 +1,19 @@
-// Package mail delivers verification links and licence files.
+// Package mail holds admin's configured email sender.
+//
+// The transport, the templates and the look all live in shared/mail, which the
+// control plane and sitesvc use too — this package exists only so that admin's
+// mail configuration is a boot-time singleton like licensing's signing key,
+// paddle's client and auth's Redis handle, rather than a value threaded through
+// api, auth, billing and lifecycle.
 package mail
 
-import (
-	"crypto/rand"
-	"crypto/tls"
-	"encoding/hex"
-	"fmt"
-	"mime"
-	"net"
-	"net/smtp"
-	"strings"
-	"time"
-)
+import "gitea.hostxtra.co.uk/mrhid6/vantage/shared/mail"
 
-// timeout bounds the whole SMTP conversation. Without it a mail server that
-// accepts the connection and then stalls holds an HTTP request open until the
-// client gives up — and signup's rollback runs on that request's context.
-const timeout = 15 * time.Second
+// Default is admin's sender. Set once by main; read everywhere else.
+var Default mail.Sender
 
-type Config struct {
-	Host, Port, From, Username, Password string
-	PublicURL                            string
-}
+func Init(s mail.Sender) { Default = s }
 
-var cfg Config
-
-func Init(c Config) { cfg = c }
-
-func Enabled() bool { return cfg.Host != "" && cfg.From != "" }
-
-// send delivers one message.
-//
-// Port 465 is implicit TLS: the server expects a TLS handshake immediately, so
-// the connection is wrapped BEFORE any SMTP is spoken. Every other port gets
-// plaintext then STARTTLS if offered. `net/smtp.SendMail` only does the latter,
-// which is why it fails against a 465 mail server — this exact bug silently
-// stopped every admin email from being delivered.
-//
-// This mirrors sitesvc/internal/mail, which solved the same problem first. The
-// two are duplicated rather than shared; if you change the transport here,
-// change it there too, or consolidate both into shared/.
-func send(to, subject, body string) error {
-	if !Enabled() {
-		return fmt.Errorf("SMTP is not configured")
-	}
-	if strings.TrimSpace(to) == "" {
-		return fmt.Errorf("smtp: no recipient")
-	}
-
-	addr := net.JoinHostPort(cfg.Host, cfg.Port)
-	conn, err := net.DialTimeout("tcp", addr, timeout)
-	if err != nil {
-		return fmt.Errorf("smtp: dial %s: %w", addr, err)
-	}
-	_ = conn.SetDeadline(time.Now().Add(timeout))
-
-	if cfg.Port == "465" {
-		conn = tls.Client(conn, &tls.Config{ServerName: cfg.Host})
-	}
-
-	client, err := smtp.NewClient(conn, cfg.Host)
-	if err != nil {
-		conn.Close()
-		return fmt.Errorf("smtp: client: %w", err)
-	}
-	defer client.Close()
-
-	if cfg.Port != "465" {
-		if ok, _ := client.Extension("STARTTLS"); ok {
-			if err := client.StartTLS(&tls.Config{ServerName: cfg.Host}); err != nil {
-				return fmt.Errorf("smtp: starttls: %w", err)
-			}
-		}
-	}
-
-	if cfg.Username != "" {
-		if err := client.Auth(smtp.PlainAuth("", cfg.Username, cfg.Password, cfg.Host)); err != nil {
-			return fmt.Errorf("smtp: auth: %w", err)
-		}
-	}
-
-	if err := client.Mail(cfg.From); err != nil {
-		return fmt.Errorf("smtp: mail from: %w", err)
-	}
-	if err := client.Rcpt(to); err != nil {
-		return fmt.Errorf("smtp: rcpt %s: %w", to, err)
-	}
-
-	w, err := client.Data()
-	if err != nil {
-		return fmt.Errorf("smtp: data: %w", err)
-	}
-	if _, err := w.Write(message(to, subject, body)); err != nil {
-		return fmt.Errorf("smtp: write: %w", err)
-	}
-	if err := w.Close(); err != nil {
-		return fmt.Errorf("smtp: close data: %w", err)
-	}
-	return client.Quit()
-}
-
-// message builds the RFC 5322 envelope.
-//
-// Date and Message-ID are not decoration: a message without them is scored as
-// spam by most filters, which is its own way of "the email never arrived".
-// Header values are stripped of CR and LF so a crafted instance name cannot
-// inject extra headers.
-func message(to, subject, body string) []byte {
-	var b strings.Builder
-	b.WriteString("From: " + sanitizeHeader(cfg.From) + "\r\n")
-	b.WriteString("To: " + sanitizeHeader(to) + "\r\n")
-	b.WriteString("Date: " + time.Now().Format(time.RFC1123Z) + "\r\n")
-	b.WriteString("Message-ID: " + messageID(cfg.From) + "\r\n")
-	b.WriteString("Subject: " + mime.QEncoding.Encode("utf-8", sanitizeHeader(subject)) + "\r\n")
-	b.WriteString("MIME-Version: 1.0\r\n")
-	b.WriteString("Content-Type: text/plain; charset=utf-8\r\n")
-	b.WriteString("\r\n")
-	b.WriteString(body)
-	return []byte(b.String())
-}
-
-func messageID(from string) string {
-	domain := "vantage.local"
-	if at := strings.LastIndex(from, "@"); at >= 0 && at < len(from)-1 {
-		domain = strings.Trim(from[at+1:], "<> ")
-	}
-	var buf [16]byte
-	if _, err := rand.Read(buf[:]); err != nil {
-		return fmt.Sprintf("<%d@%s>", time.Now().UnixNano(), domain)
-	}
-	return fmt.Sprintf("<%s@%s>", hex.EncodeToString(buf[:]), domain)
-}
-
-func sanitizeHeader(v string) string {
-	return strings.NewReplacer("\r", " ", "\n", " ").Replace(v)
-}
-
-func SendVerification(to, token string) error {
-	link := fmt.Sprintf("%s/verify?token=%s", cfg.PublicURL, token)
-	return send(to, "Verify your Vantage account",
-		"Confirm your email address to finish setting up your Vantage account:\n\n"+
-			link+"\n\nThis link expires in 24 hours.\n")
-}
-
-// SendInvite asks someone to join an existing account and set their own
-// password. It names the account, because an unexpected invitation from a
-// service you have never used is otherwise indistinguishable from spam.
-func SendInvite(to, accountName, token string) error {
-	link := fmt.Sprintf("%s/accept-invite?token=%s", cfg.PublicURL, token)
-	return send(to, "You have been invited to "+sanitizeHeader(accountName)+" on Vantage",
-		fmt.Sprintf("You have been invited to join %s on Vantage.\n\n"+
-			"Set your password and finish joining:\n\n%s\n\n"+
-			"This link expires in 24 hours. If you were not expecting this, ignore it — "+
-			"nothing happens until you open the link.\n", accountName, link))
-}
-
-// SendLicense delivers the blob inline. It is signed public data, not a secret —
-// it is useless on any instance other than the one it names.
-func SendLicense(to, instanceName, blob string) error {
-	return send(to, "Your Vantage licence key",
-		fmt.Sprintf("Your licence for %s is below.\n\n"+
-			"Paste it into Settings → Licence on your Vantage install:\n\n%s\n",
-			instanceName, blob))
-}
-
-// SendInstanceReady tells a customer their cloud instance exists, where it is,
-// and when its licence runs out.
-//
-// The expiry is stated here rather than only in a later reminder: a Free licence
-// that quietly expires in a month is a surprise, and the first email is the one
-// people keep.
-func SendInstanceReady(to, instanceName, loginURL string, expires time.Time) error {
-	body := fmt.Sprintf("%s is ready.\n\n", instanceName)
-	if loginURL != "" {
-		body += "Sign in here:\n\n" + loginURL + "\n\n"
-	}
-	body += fmt.Sprintf(
-		"Your Free licence runs until %s. We will email you before then so you can renew it in one click.\n\n"+
-			"Sign in with the same email address and password you use for your Vantage account. "+
-			"Changing your Vantage HQ password changes it here too.\n",
-		expires.Format("2 January 2006"))
-	return send(to, instanceName+" is ready", body)
-}
-
-// SendRenewed confirms a renewal and states the new date.
-func SendRenewed(to, instanceName string, expires time.Time) error {
-	return send(to, instanceName+" renewed",
-		fmt.Sprintf("%s is renewed.\n\nYour Free licence now runs until %s.\n",
-			instanceName, expires.Format("2 January 2006")))
-}
-
-// SendExpiring is the renew-now nudge, seven days out.
-func SendExpiring(to, instanceName, portalURL string, expires time.Time) error {
-	return send(to, instanceName+" expires on "+expires.Format("2 January"),
-		fmt.Sprintf("%s's Free licence runs out on %s.\n\n"+
-			"Renew it in one click:\n\n%s\n\n"+
-			"If you do nothing, the instance keeps running but stops accepting changes.\n",
-			instanceName, expires.Format("2 January 2006"), portalURL))
-}
-
-// SendExpired states plainly what has stopped and what happens next.
-//
-// It names the deletion date rather than a vague warning: the whole point of the
-// sequence is that nobody loses an instance without having been told a date.
-func SendExpired(to, instanceName, portalURL string, deleteOn time.Time) error {
-	return send(to, instanceName+" is now read-only",
-		fmt.Sprintf("%s's Free licence has expired.\n\n"+
-			"Your servers and monitors keep running and your agents keep their keys, "+
-			"but changes are disabled.\n\n"+
-			"Renew it here:\n\n%s\n\n"+
-			"If it is not renewed, the instance and everything in it will be deleted on %s.\n",
-			instanceName, portalURL, deleteOn.Format("2 January 2006")))
-}
-
-// SendDeletionWarning is the final countdown, sent at seven days and one day.
-func SendDeletionWarning(to, instanceName, portalURL string, deleteOn time.Time, daysLeft int) error {
-	when := fmt.Sprintf("in %d days", daysLeft)
-	if daysLeft <= 1 {
-		when = "tomorrow"
-	}
-	return send(to, instanceName+" will be deleted "+when,
-		fmt.Sprintf("%s and everything in it will be deleted %s, on %s.\n\n"+
-			"This cannot be undone. Renew it here to keep it:\n\n%s\n",
-			instanceName, when, deleteOn.Format("2 January 2006"), portalURL))
-}
+// Enabled reports whether SMTP is configured. Callers check it to skip a send
+// politely rather than logging a failure per message.
+func Enabled() bool { return Default.Enabled() }

admin/internal/models/backfill.go

@@ -2,17 +2,105 @@ package models
 
 import (
 	"context"
+	"errors"
 	"log"
 	"time"
 
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	sharedmodels "gitea.hostxtra.co.uk/mrhid6/vantage/shared/models"
 	"github.com/google/uuid"
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/shared/license"
-	sharedmodels "github.com/mrhid6/vantage/shared/models"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo"
 )
 
+// MigrateLegacyPlans re-keys the pre-spec-7 plan rows and MUST run before
+// SeedPlans.
+//
+// The original three rows were keyed on tier alone: (cloud,free),
+// (cloud,professional) and a self_hosted TIER row. Spec 7 re-keys on
+// (deployment, tier), makes self_hosted a deployment rather than a tier, and
+// renames limits/features to base_limits/base_features.
+//
+// Ordering is the whole point. SeedPlans inserts a fresh (self_hosted,
+// professional) row; if the legacy self_hosted row is only renamed afterwards it
+// collides with that seed on deployment_tier_unique. Running here, before the
+// seed, the rename lands first and the seed then no-ops on it.
+//
+// It is idempotent and self-healing: on a database where a previous boot already
+// seeded (self_hosted, professional) before crashing, the legacy row can no
+// longer be renamed onto it, so the legacy row is dropped instead — its
+// instances are re-tiered and re-entitled from the surviving professional row.
+func MigrateLegacyPlans(ctx context.Context) error {
+	// Legacy cloud rows may predate the deployment field entirely.
+	if _, err := db.Admin("plans").UpdateMany(ctx,
+		bson.M{"deployment": bson.M{"$exists": false},
+			"tier": bson.M{"$in": bson.A{license.TierFree, license.TierProfessional}}},
+		bson.M{"$set": bson.M{"deployment": license.DeploymentCloud}}); err != nil {
+		return err
+	}
+
+	// The legacy self_hosted TIER row becomes self-hosted Professional. If that
+	// target already exists (a prior partial boot seeded it), drop the legacy row
+	// rather than colliding — the seeded row carries the same professional base.
+	var legacy Plan
+	err := db.Admin("plans").FindOne(ctx, bson.M{"tier": license.TierSelfHosted}).Decode(&legacy)
+	switch {
+	case err == nil:
+		targetErr := db.Admin("plans").FindOne(ctx,
+			bson.M{"deployment": license.DeploymentSelfHosted, "tier": license.TierProfessional}).Err()
+		if targetErr == nil {
+			if _, err := db.Admin("plans").DeleteOne(ctx, bson.M{"_id": legacy.ID}); err != nil {
+				return err
+			}
+			log.Printf("backfill: dropped legacy self_hosted plan row; (self_hosted, professional) already present")
+		} else if errors.Is(targetErr, mongo.ErrNoDocuments) {
+			if _, err := db.Admin("plans").UpdateOne(ctx,
+				bson.M{"_id": legacy.ID},
+				bson.M{"$set": bson.M{
+					"deployment": license.DeploymentSelfHosted,
+					"tier":       license.TierProfessional,
+					"name":       "Professional",
+				}}); err != nil {
+				return err
+			}
+			log.Printf("backfill: re-keyed legacy self_hosted plan to (self_hosted, professional)")
+		} else {
+			return targetErr
+		}
+	case errors.Is(err, mongo.ErrNoDocuments):
+		// No legacy row; a fresh database or an already-migrated one.
+	default:
+		return err
+	}
+
+	// limits/features become base_limits/base_features on any row still carrying
+	// the old names.
+	if _, err := db.Admin("plans").UpdateMany(ctx,
+		bson.M{"limits": bson.M{"$exists": true}},
+		bson.M{"$rename": bson.M{"limits": "base_limits", "features": "base_features"}}); err != nil {
+		return err
+	}
+
+	// Support level is new, so nothing has one. Fill from the seed table rather
+	// than guessing: a plan row a human edited keeps every other field.
+	for _, deployment := range license.Deployments() {
+		for _, tier := range license.Tiers() {
+			p, ok := license.PlanFor(deployment, tier)
+			if !ok {
+				continue
+			}
+			if _, err := db.Admin("plans").UpdateOne(ctx,
+				bson.M{"deployment": deployment, "tier": tier,
+					"support_level": bson.M{"$in": bson.A{nil, ""}}},
+				bson.M{"$set": bson.M{"support_level": p.SupportLevel}}); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
 // Backfill brings pre-phase-3 data up to the membership model.
 //
 // It runs on every boot and is idempotent by construction: both passes filter
@@ -97,5 +185,116 @@ func Backfill(ctx context.Context) error {
 	if created > 0 {
 		log.Printf("backfill: recorded %d pre-existing instance owners", created)
 	}
+
+	// Pass 3 (the plan re-key) now runs in MigrateLegacyPlans, called from main
+	// BEFORE SeedPlans. It has to: SeedPlans inserts a fresh
+	// (self_hosted, professional) row, and if the legacy self_hosted TIER row is
+	// only renamed afterwards it collides with that seed on deployment_tier_unique.
+
+	// Pass 4: instances carrying the self_hosted TIER move to Professional.
+	// Their deployment already says self_hosted, so only the tier is wrong.
+	res, err = db.Admin("admin_instances").UpdateMany(ctx,
+		bson.M{"tier": license.TierSelfHosted},
+		bson.M{"$set": bson.M{"tier": license.TierProfessional}})
+	if err != nil {
+		return err
+	}
+	if res.ModifiedCount > 0 {
+		log.Printf("backfill: re-tiered %d self-hosted instances to professional", res.ModifiedCount)
+	}
+
+	// Pass 5: give every instance an entitlement, reconstructed from its current
+	// licence. Filtering on the absence of a row is what makes this idempotent,
+	// and it means an entitlement a customer has since edited is never
+	// overwritten by a stale licence.
+	if err := backfillEntitlements(ctx); err != nil {
+		return err
+	}
 	return nil
 }
+
+// backfillEntitlements reconstructs an entitlement per instance from its licence.
+//
+// An Unlimited max_servers maps back to the plan's BASE allowance rather than to
+// a huge number: an unlimited licence bought no server units, so the honest
+// reconstruction of "how many did they pay for" is none. This makes a
+// pre-metering Professional instance read as 3 servers, which is a REDUCTION in
+// what it is allowed. That is deliberate and it is why this is a plan step and
+// not a silent fix — see the task's confirmation step.
+func backfillEntitlements(ctx context.Context) error {
+	cur, err := db.Admin("admin_instances").Find(ctx,
+		bson.M{"status": bson.M{"$ne": StatusDeleted}})
+	if err != nil {
+		return err
+	}
+	var instances []Instance
+	if err := cur.All(ctx, &instances); err != nil {
+		return err
+	}
+
+	created := 0
+	for _, inst := range instances {
+		n, err := db.Admin("entitlements").CountDocuments(ctx,
+			bson.M{"instance_id": inst.InstanceID})
+		if err != nil {
+			return err
+		}
+		if n > 0 {
+			continue
+		}
+
+		deployment, tier := license.NormaliseTier(inst.Deployment, inst.Tier)
+		if tier == "" {
+			// An instance awaiting its first licence has no tier. It gets an
+			// entitlement when one is issued, not before.
+			continue
+		}
+		plan, err := GetPlan(ctx, deployment, tier)
+		if err != nil {
+			log.Printf("backfill: instance %s names unknown plan %s/%s; skipped",
+				inst.InstanceID, deployment, tier)
+			continue
+		}
+
+		cfg := Config{Servers: plan.BaseLimits.MaxServers, Features: Features{}}
+		if inst.CurrentLicense != "" {
+			var lic License
+			if err := db.Admin("licenses").FindOne(ctx,
+				bson.M{"license_id": inst.CurrentLicense}).Decode(&lic); err == nil {
+				if lic.Limits.MaxServers != license.Unlimited && lic.Limits.MaxServers > 0 {
+					cfg.Servers = lic.Limits.MaxServers
+				}
+				cfg.Features = lic.Features.OrEmpty()
+			}
+		}
+
+		limits := plan.BaseLimits
+		limits.MaxServers = cfg.Servers
+		if err := UpsertEntitlement(ctx, Entitlement{
+			InstanceID:     inst.InstanceID,
+			AccountID:      inst.AccountID,
+			Deployment:     deployment,
+			Tier:           tier,
+			Term:           defaultTerm(deployment),
+			Desired:        cfg,
+			Granted:        cfg,
+			ResolvedLimits: limits,
+		}); err != nil {
+			return err
+		}
+		created++
+	}
+	if created > 0 {
+		log.Printf("backfill: created %d entitlements from current licences", created)
+	}
+	return nil
+}
+
+// defaultTerm is the term to assume for a reconstructed entitlement. Self-hosted
+// sells annual only, so there is nothing to guess there.
+func defaultTerm(deployment string) string {
+	if deployment == license.DeploymentSelfHosted {
+		return "annual"
+	}
+	return "monthly"
+}

admin/internal/models/catalogue.go

@@ -0,0 +1,140 @@
+package models
+
+import (
+	"context"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+// Component kinds.
+const (
+	// KindBase is the plan's own fee, always quantity 1.
+	KindBase = "base"
+	// KindLimit raises a named limit by one per unit of quantity.
+	KindLimit = "limit"
+	// KindFeature is an on/off feature key.
+	KindFeature = "feature"
+)
+
+// LimitKeyServers is the only metered limit today.
+//
+// A limit_key is a field name in license.Limits, which is what lets a second
+// metered dimension be a catalogue row rather than a code change. There is
+// deliberately no block size: with secret-group blocks dropped from the spec it
+// would be 1 in every row that will ever exist.
+const LimitKeyServers = "max_servers"
+
+// CatalogueRow is one priceable component of one plan.
+//
+// This is the ONLY place a Paddle price ID appears anywhere in Vantage. An empty
+// PriceIDs means the component is free — a feature with no price is a toggle a
+// customer may take at no charge, and giving it a price later is a staff edit
+// rather than a migration or a deploy.
+type CatalogueRow struct {
+	ID         bson.ObjectID `bson:"_id,omitempty" json:"-"`
+	Kind       string        `bson:"kind" json:"kind"`
+	Deployment string        `bson:"deployment" json:"deployment"`
+	Tier       string        `bson:"tier" json:"tier"`
+	LimitKey   string        `bson:"limit_key,omitempty" json:"limit_key,omitempty"`
+	FeatureKey string        `bson:"feature_key,omitempty" json:"feature_key,omitempty"`
+	// PriceIDs is environment -> term -> Paddle price ID, e.g.
+	// {"sandbox": {"monthly": "pri_…"}, "production": {"annual": "pri_…"}}.
+	//
+	// Nested by environment rather than kept in two collections, because
+	// promoting sandbox to production must be a configuration change and not a
+	// data migration. The running PADDLE_ENV picks the inner map.
+	PriceIDs map[string]map[string]string `bson:"price_ids,omitempty" json:"price_ids,omitempty"`
+}
+
+// PriceID returns the price for one environment and term, or "".
+func (r CatalogueRow) PriceID(env, term string) string {
+	if r.PriceIDs == nil {
+		return ""
+	}
+	return r.PriceIDs[env][term]
+}
+
+// Priced reports whether this component costs anything in an environment.
+func (r CatalogueRow) Priced(env string) bool {
+	for _, term := range []string{"monthly", "annual"} {
+		if r.PriceID(env, term) != "" {
+			return true
+		}
+	}
+	return false
+}
+
+// SeedCatalogue inserts the sixteen rows the four PAID plans need.
+//
+// The two Free plans get no rows at all, and that absence is what keeps Free
+// outside Paddle: with nothing to price, no checkout can be built for it. Do not
+// "fix" this by adding zero-priced Free rows.
+//
+// $setOnInsert only, for the same reason as SeedPlans: the price IDs are pasted
+// in by staff and a redeploy must not blank them.
+func SeedCatalogue(ctx context.Context) error {
+	paid := []string{license.TierProfessional, license.TierEnterprise}
+	for _, deployment := range license.Deployments() {
+		for _, tier := range paid {
+			rows := []CatalogueRow{
+				{Kind: KindBase, Deployment: deployment, Tier: tier},
+				{Kind: KindLimit, Deployment: deployment, Tier: tier, LimitKey: LimitKeyServers},
+				{Kind: KindFeature, Deployment: deployment, Tier: tier, FeatureKey: license.FeatureConsole},
+				{Kind: KindFeature, Deployment: deployment, Tier: tier, FeatureKey: license.FeatureOIDC},
+			}
+			for _, r := range rows {
+				filter := bson.M{
+					"kind":        r.Kind,
+					"deployment":  r.Deployment,
+					"tier":        r.Tier,
+					"limit_key":   r.LimitKey,
+					"feature_key": r.FeatureKey,
+				}
+				if _, err := db.Admin("catalogue").UpdateOne(ctx, filter,
+					bson.M{"$setOnInsert": bson.M{
+						"kind":        r.Kind,
+						"deployment":  r.Deployment,
+						"tier":        r.Tier,
+						"limit_key":   r.LimitKey,
+						"feature_key": r.FeatureKey,
+						"price_ids":   map[string]map[string]string{},
+					}},
+					options.UpdateOne().SetUpsert(true)); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// CatalogueFor returns every component of one plan.
+func CatalogueFor(ctx context.Context, deployment, tier string) ([]CatalogueRow, error) {
+	deployment, tier = license.NormaliseTier(deployment, tier)
+	cur, err := db.Admin("catalogue").Find(ctx,
+		bson.M{"deployment": deployment, "tier": tier})
+	if err != nil {
+		return nil, err
+	}
+	rows := []CatalogueRow{}
+	if err := cur.All(ctx, &rows); err != nil {
+		return nil, err
+	}
+	return rows, nil
+}
+
+// AllCatalogue returns every row, for the staff editor.
+func AllCatalogue(ctx context.Context) ([]CatalogueRow, error) {
+	cur, err := db.Admin("catalogue").Find(ctx, bson.M{})
+	if err != nil {
+		return nil, err
+	}
+	rows := []CatalogueRow{}
+	if err := cur.All(ctx, &rows); err != nil {
+		return nil, err
+	}
+	return rows, nil
+}

admin/internal/models/entitlements.go

@@ -0,0 +1,139 @@
+package models
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+// ErrNoEntitlement means the instance has no configuration row.
+//
+// Callers fall back to the plan's base rather than failing: staff manual
+// issuance and any instance predating the backfill legitimately have none.
+var ErrNoEntitlement = errors.New("instance has no entitlement")
+
+// Config is one side of an entitlement — a complete statement of what an
+// instance is allowed.
+//
+// Servers is the TOTAL the customer sees, not the number of units billed. The
+// billed quantity is Servers minus the plan's base allowance, and it is computed
+// where the line items are built rather than stored, so the two can never
+// disagree about which of them included the base.
+type Config struct {
+	Servers  int      `bson:"servers" json:"servers"`
+	Features Features `bson:"features" json:"features"`
+}
+
+// Entitlement is what one instance's customer configured.
+//
+// Both the subscription and the licence are derived from it; it is derived from
+// nothing. Desired is what they last asked for; Granted is what a payment
+// confirmed. A licence is only ever signed from Granted, so an abandoned
+// checkout leaves a Desired that reached nothing.
+type Entitlement struct {
+	ID         bson.ObjectID `bson:"_id,omitempty" json:"-"`
+	InstanceID string        `bson:"instance_id" json:"instance_id"`
+	AccountID  string        `bson:"account_id" json:"account_id"`
+	Deployment string        `bson:"deployment" json:"deployment"`
+	Tier       string        `bson:"tier" json:"tier"`
+	Term       string        `bson:"term" json:"term"`
+
+	Desired Config `bson:"desired" json:"desired"`
+	Granted Config `bson:"granted" json:"granted"`
+
+	// ResolvedLimits is BaseLimits with Granted folded in. It is stored rather
+	// than derived on read so the fold lives in exactly one place — deriving it
+	// at every read would put the arithmetic in the issuer, the portal and the
+	// staff console.
+	ResolvedLimits license.Limits `bson:"resolved_limits" json:"resolved_limits"`
+
+	// ScheduledChangeAt is when a pending REDUCTION takes effect. It is set only
+	// when Desired grants less than Granted, and it is what lets the portal say
+	// "drops to 5 on 12 August" instead of guessing.
+	ScheduledChangeAt *time.Time `bson:"scheduled_change_at,omitempty" json:"scheduled_change_at,omitempty"`
+
+	GrantedAt time.Time `bson:"granted_at" json:"granted_at"`
+	UpdatedAt time.Time `bson:"updated_at" json:"updated_at"`
+}
+
+// Pending reports whether Desired and Granted disagree.
+func (e Entitlement) Pending() bool {
+	if e.Desired.Servers != e.Granted.Servers {
+		return true
+	}
+	if len(e.Desired.Features) != len(e.Granted.Features) {
+		return true
+	}
+	have := map[string]bool{}
+	for _, f := range e.Granted.Features {
+		have[f] = true
+	}
+	for _, f := range e.Desired.Features {
+		if !have[f] {
+			return true
+		}
+	}
+	return false
+}
+
+// GetEntitlement reads one instance's configuration.
+func GetEntitlement(ctx context.Context, instanceID string) (*Entitlement, error) {
+	var e Entitlement
+	err := db.Admin("entitlements").FindOne(ctx,
+		bson.M{"instance_id": instanceID}).Decode(&e)
+	if errors.Is(err, mongo.ErrNoDocuments) {
+		return nil, ErrNoEntitlement
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &e, nil
+}
+
+// UpsertEntitlement writes an entitlement, creating it if absent.
+//
+// GrantedAt is only touched when Granted actually changes, which is what makes
+// it answer "since when has this instance been allowed this" rather than "when
+// was this row last written".
+func UpsertEntitlement(ctx context.Context, e Entitlement) error {
+	now := time.Now().UTC()
+	set := bson.M{
+		"account_id":      e.AccountID,
+		"deployment":      e.Deployment,
+		"tier":            e.Tier,
+		"term":            e.Term,
+		"desired":         e.Desired,
+		"granted":         e.Granted,
+		"resolved_limits": e.ResolvedLimits,
+		"updated_at":      now,
+	}
+	if e.ScheduledChangeAt != nil {
+		set["scheduled_change_at"] = *e.ScheduledChangeAt
+	}
+	if !e.GrantedAt.IsZero() {
+		set["granted_at"] = e.GrantedAt
+	} else {
+		set["granted_at"] = now
+	}
+	update := bson.M{"$set": set}
+	if e.ScheduledChangeAt == nil {
+		update["$unset"] = bson.M{"scheduled_change_at": ""}
+	}
+	_, err := db.Admin("entitlements").UpdateOne(ctx,
+		bson.M{"instance_id": e.InstanceID},
+		mergeSetOnInsert(update, bson.M{"instance_id": e.InstanceID}),
+		options.UpdateOne().SetUpsert(true))
+	return err
+}
+
+// mergeSetOnInsert adds a $setOnInsert clause without clobbering an existing one.
+func mergeSetOnInsert(update bson.M, onInsert bson.M) bson.M {
+	update["$setOnInsert"] = onInsert
+	return update
+}

admin/internal/models/models.go

@@ -9,7 +9,7 @@ import (
 	"encoding/json"
 	"time"
 
-	"github.com/mrhid6/vantage/shared/license"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
 	"go.mongodb.org/mongo-driver/v2/bson"
 )
 
@@ -68,6 +68,28 @@ const (
 	ReasonTierChange = "tier_change"
 	ReasonRelink     = "relink"
 	ReasonManual     = "manual"
+
+	// ReasonEntitlementChange is a mid-term change to what an instance is
+	// allowed — servers added, a feature toggled — at the same expiry.
+	//
+	// It is deliberately NOT ReasonRenewal: a renewal resets relink_count
+	// because a new term has begun, and adding a server does not begin one.
+	ReasonEntitlementChange = "entitlement_change"
+)
+
+// Subscription statuses, mirrored from Paddle. Ours, not a vendor SDK's, so the
+// billing package does not import anything Paddle.
+const (
+	SubActive   = "active"
+	SubCanceled = "canceled"
+	SubPastDue  = "past_due"
+	SubTrialing = "trialing"
+)
+
+// Billing terms. These match catalogue price-ID keys and license.TermsFor.
+const (
+	TermMonthly = "monthly"
+	TermAnnual  = "annual"
 )
 
 // MaxRelinksPerTerm is the customer-facing relink cap.
@@ -120,8 +142,16 @@ type Instance struct {
 	// CURRENT term ("expiring", "expired", "delete_7", "delete_1"). Renewal
 	// clears it, so the next term starts the sequence again. It is what stops a
 	// restart re-sending a notice.
-	NoticesSent []string  `bson:"notices_sent,omitempty" json:"notices_sent,omitempty"`
-	CreatedAt   time.Time `bson:"created_at" json:"created_at"`
+	NoticesSent []string `bson:"notices_sent,omitempty" json:"notices_sent,omitempty"`
+	// Placeholder is true while a self-hosted instance row exists only so a
+	// checkout has something to attach custom_data to, before the customer has
+	// pasted their install's real UUID. Cleared when the instance is linked.
+	Placeholder bool `bson:"placeholder,omitempty" json:"placeholder,omitempty"`
+	// PendingOwnerUserID is the customer_user who bought a paid-cloud placeholder,
+	// remembered so the confirmed-payment webhook can provision the instance with
+	// them as owner. Cleared once provisioned. Only ever set on a cloud placeholder.
+	PendingOwnerUserID string    `bson:"pending_owner_user_id,omitempty" json:"-"`
+	CreatedAt          time.Time `bson:"created_at" json:"created_at"`
 }
 
 // License is append-only. A renewal writes a new row and sets SupersededBy on
@@ -151,28 +181,56 @@ type Subscription struct {
 	AccountID            string        `bson:"account_id" json:"account_id"`
 	InstanceID           string        `bson:"instance_id,omitempty" json:"instance_id,omitempty"`
 	PaddleSubscriptionID string        `bson:"paddle_subscription_id,omitempty" json:"paddle_subscription_id,omitempty"`
-	PaddlePriceID        string        `bson:"paddle_price_id,omitempty" json:"paddle_price_id,omitempty"`
 	Tier                 string        `bson:"tier" json:"tier"`
 	Term                 string        `bson:"term" json:"term"`
 	Status               string        `bson:"status" json:"status"`
 	CurrentPeriodEnd     time.Time     `bson:"current_period_end" json:"current_period_end"`
+	// Items is the full line-item list. Spec 7 made a subscription several
+	// prices — a base, a per-server unit at quantity N, an item per paid
+	// feature — so a single price ID can no longer describe it.
+	Items []SubItem `bson:"items,omitempty" json:"items,omitempty"`
 }
 
-// Plan is the authoritative tier definition, seeded from shared/license.
+// SubItem is one line of a subscription: a price and its quantity, the shape
+// catalogue.ResolveItems reads back into a plan and configuration.
+type SubItem struct {
+	PriceID  string `bson:"price_id" json:"price_id"`
+	Quantity int    `bson:"quantity" json:"quantity"`
+}
+
+// PaddleEvent is the idempotency record for one webhook delivery. The unique
+// index on EventID is what makes a retry a no-op rather than a second licence.
+type PaddleEvent struct {
+	ID          bson.ObjectID `bson:"_id,omitempty" json:"-"`
+	EventID     string        `bson:"event_id" json:"event_id"`
+	EventType   string        `bson:"event_type" json:"event_type"`
+	ReceivedAt  time.Time     `bson:"received_at" json:"received_at"`
+	ProcessedAt *time.Time    `bson:"processed_at,omitempty" json:"processed_at,omitempty"`
+	Error       string        `bson:"error,omitempty" json:"error,omitempty"`
+}
+
+// Plan is the authoritative definition of one (deployment, tier) pair, seeded
+// from shared/license.
 //
 // It lives in the database so tier contents change without a deploy. Every
 // issued licence snapshots it, so editing a plan never rewrites an existing
 // licence — the same rule as workflow_runs.steps_snapshot.
+//
+// It holds NO Paddle identifiers. Every price ID lives in `catalogue`, because a
+// metered plan is priced by several components and a single map on this row
+// cannot express that.
 type Plan struct {
-	ID              bson.ObjectID     `bson:"_id,omitempty" json:"-"`
-	Tier            string            `bson:"tier" json:"tier"`
-	Name            string            `bson:"name" json:"name"`
-	Deployment      string            `bson:"deployment" json:"deployment"`
-	Limits          license.Limits    `bson:"limits" json:"limits"`
-	Features        Features          `bson:"features" json:"features"`
-	PaddleProductID string            `bson:"paddle_product_id,omitempty" json:"paddle_product_id,omitempty"`
-	PaddlePriceIDs  map[string]string `bson:"paddle_price_ids,omitempty" json:"paddle_price_ids,omitempty"`
-	Active          bool              `bson:"active" json:"active"`
+	ID         bson.ObjectID `bson:"_id,omitempty" json:"-"`
+	Deployment string        `bson:"deployment" json:"deployment"`
+	Tier       string        `bson:"tier" json:"tier"`
+	Name       string        `bson:"name" json:"name"`
+	// BaseLimits is the allowance before anything is bought. The field is named
+	// `base_` rather than `limits` because that is a different claim from the one
+	// the old field made, and a reader must not assume it is the total.
+	BaseLimits   license.Limits `bson:"base_limits" json:"base_limits"`
+	BaseFeatures Features       `bson:"base_features" json:"base_features"`
+	SupportLevel string         `bson:"support_level" json:"support_level"`
+	Active       bool           `bson:"active" json:"active"`
 }
 
 type StaffUser struct {

admin/internal/models/paddle_events.go

@@ -0,0 +1,48 @@
+package models
+
+import (
+	"context"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo"
+)
+
+// ClaimEvent records an event ID before it is processed and reports whether THIS
+// call is the one that claimed it.
+//
+// The unique index on event_id turns a duplicate insert into a duplicate-key
+// error, which is the signal that another delivery of the same event already
+// owns it — so this returns (false, nil) and the caller answers 200 without
+// acting. A genuine error returns (false, err).
+func ClaimEvent(ctx context.Context, eventID, eventType string) (bool, error) {
+	_, err := db.Admin("paddle_events").InsertOne(ctx, PaddleEvent{
+		EventID:    eventID,
+		EventType:  eventType,
+		ReceivedAt: time.Now().UTC(),
+	})
+	if err == nil {
+		return true, nil
+	}
+	if mongo.IsDuplicateKeyError(err) {
+		return false, nil
+	}
+	return false, err
+}
+
+// MarkEventProcessed stamps success, or records the error for staff visibility.
+// A failed event keeps no processed_at, so a retry re-runs it.
+func MarkEventProcessed(ctx context.Context, eventID string, procErr error) error {
+	set := bson.M{}
+	if procErr != nil {
+		set["error"] = procErr.Error()
+	} else {
+		now := time.Now().UTC()
+		set["processed_at"] = now
+		set["error"] = ""
+	}
+	_, err := db.Admin("paddle_events").UpdateOne(ctx,
+		bson.M{"event_id": eventID}, bson.M{"$set": set})
+	return err
+}

admin/internal/models/plans.go

@@ -4,44 +4,54 @@ import (
 	"context"
 	"time"
 
-	"github.com/mrhid6/vantage/admin/internal/db"
-	"github.com/mrhid6/vantage/shared/license"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/admin/internal/db"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/shared/license"
 	"go.mongodb.org/mongo-driver/v2/bson"
 	"go.mongodb.org/mongo-driver/v2/mongo/options"
 )
 
-// SeedPlans inserts the tier table from shared/license on first boot.
+// SeedPlans inserts the six (deployment, tier) rows from shared/license on first
+// boot.
 //
-// It uses $setOnInsert only: once a plan exists, staff edits to limits, features
-// and Paddle IDs are authoritative and a redeploy must not stamp over them.
+// It uses $setOnInsert only: once a plan exists, staff edits to allowances,
+// features and support level are authoritative and a redeploy must not stamp
+// over them.
 func SeedPlans(ctx context.Context) error {
-	for _, tier := range []string{license.TierFree, license.TierProfessional, license.TierSelfHosted} {
-		p, ok := license.PlanFor(tier)
-		if !ok {
-			continue
-		}
-		_, err := db.Admin("plans").UpdateOne(ctx,
-			bson.M{"tier": tier},
-			bson.M{"$setOnInsert": bson.M{
-				"tier":       p.Tier,
-				"name":       p.Name,
-				"deployment": p.Deployment,
-				"limits":     p.Limits,
-				"features":   Features(p.Features).OrEmpty(),
-				"active":     true,
-			}},
-			options.UpdateOne().SetUpsert(true))
-		if err != nil {
-			return err
+	for _, deployment := range license.Deployments() {
+		for _, tier := range license.Tiers() {
+			p, ok := license.PlanFor(deployment, tier)
+			if !ok {
+				continue
+			}
+			_, err := db.Admin("plans").UpdateOne(ctx,
+				bson.M{"deployment": deployment, "tier": tier},
+				bson.M{"$setOnInsert": bson.M{
+					"deployment":    p.Deployment,
+					"tier":          p.Tier,
+					"name":          p.Name,
+					"base_limits":   p.Limits,
+					"base_features": Features(p.Features).OrEmpty(),
+					"support_level": p.SupportLevel,
+					"active":        true,
+				}},
+				options.UpdateOne().SetUpsert(true))
+			if err != nil {
+				return err
+			}
 		}
 	}
 	return nil
 }
 
-// GetPlan reads a tier's authoritative definition.
-func GetPlan(ctx context.Context, tier string) (*Plan, error) {
+// GetPlan reads one pair's authoritative definition.
+//
+// It normalises the tier first, so a legacy self_hosted licence being reissued
+// resolves to the plan that replaced it.
+func GetPlan(ctx context.Context, deployment, tier string) (*Plan, error) {
+	deployment, tier = license.NormaliseTier(deployment, tier)
 	var p Plan
-	if err := db.Admin("plans").FindOne(ctx, bson.M{"tier": tier}).Decode(&p); err != nil {
+	if err := db.Admin("plans").FindOne(ctx,
+		bson.M{"deployment": deployment, "tier": tier}).Decode(&p); err != nil {
 		return nil, err
 	}
 	return &p, nil

admin/internal/paddle/client.go

@@ -0,0 +1,54 @@
+// Package paddle is the only place that talks to Paddle. Everything outside it
+// depends on the Client interface and our own types, never on Paddle's wire
+// shapes — so a change at Paddle is confined to http.go, and the billing package
+// can be reasoned about without knowing Paddle exists.
+//
+// It is a thin REST client rather than the vendor SDK on purpose: the surface we
+// need is two calls, and a hand-rolled client has no version-drift risk and no
+// dependency to keep in go.sum.
+package paddle
+
+import "context"
+
+// LineItem is one price at a quantity, the shape both a checkout and a
+// subscription update are built from.
+type LineItem struct {
+	PriceID  string
+	Quantity int
+}
+
+// Client is the narrow slice of Paddle admin needs. Checkout itself happens in
+// the browser via paddle-js; the server only updates an existing subscription
+// and mints a portal session.
+type Client interface {
+	// UpdateSubscriptionItems replaces a subscription's items, prorated
+	// immediately by Paddle. This is the one outbound mutation, used when a
+	// customer changes their server count or features on an existing plan.
+	UpdateSubscriptionItems(ctx context.Context, paddleSubscriptionID string, items []LineItem) error
+	// PortalSession returns a customer-portal URL for managing billing.
+	PortalSession(ctx context.Context, paddleCustomerID string) (string, error)
+	// Env is "sandbox" or "production", the same value catalogue price lookups
+	// are keyed on.
+	Env() string
+}
+
+var current Client
+
+// Init constructs the client from config and stores it. Called once at boot.
+func Init(apiKey, env string) (Client, error) {
+	c, err := newHTTPClient(apiKey, env)
+	if err != nil {
+		return nil, err
+	}
+	current = c
+	return c, nil
+}
+
+// Get returns the client initialised at boot. Panics if unset, which can only
+// happen if a caller runs before Init — a programming error, not a runtime one.
+func Get() Client {
+	if current == nil {
+		panic("paddle.Get before paddle.Init")
+	}
+	return current
+}

admin/internal/paddle/http.go

@@ -0,0 +1,120 @@
+package paddle
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+// httpClient is the only implementation of Client. It is the single place that
+// knows Paddle's base URLs, auth header and request shapes — swap the whole
+// vendor here without the rest of the tree noticing.
+type httpClient struct {
+	apiKey string
+	env    string
+	base   string
+	http   *http.Client
+}
+
+func newHTTPClient(apiKey, env string) (Client, error) {
+	if apiKey == "" {
+		return nil, fmt.Errorf("paddle: empty API key")
+	}
+	base := "https://sandbox-api.paddle.com"
+	if env == "production" {
+		base = "https://api.paddle.com"
+	}
+	return &httpClient{
+		apiKey: apiKey,
+		env:    env,
+		base:   base,
+		http:   &http.Client{Timeout: 20 * time.Second},
+	}, nil
+}
+
+func (c *httpClient) Env() string { return c.env }
+
+// do sends a JSON request and decodes the `data` envelope Paddle wraps every
+// response in. A non-2xx is returned as an error carrying the body, so a
+// configuration or auth failure is loud rather than silent.
+func (c *httpClient) do(ctx context.Context, method, path string, body any, out any) error {
+	var buf io.Reader
+	if body != nil {
+		b, err := json.Marshal(body)
+		if err != nil {
+			return fmt.Errorf("paddle: marshal %s %s: %w", method, path, err)
+		}
+		buf = bytes.NewReader(b)
+	}
+	req, err := http.NewRequestWithContext(ctx, method, c.base+path, buf)
+	if err != nil {
+		return fmt.Errorf("paddle: build %s %s: %w", method, path, err)
+	}
+	req.Header.Set("Authorization", "Bearer "+c.apiKey)
+	req.Header.Set("Content-Type", "application/json")
+
+	res, err := c.http.Do(req)
+	if err != nil {
+		return fmt.Errorf("paddle: %s %s: %w", method, path, err)
+	}
+	defer res.Body.Close()
+	raw, _ := io.ReadAll(res.Body)
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return fmt.Errorf("paddle: %s %s returned %d: %s", method, path, res.StatusCode, string(raw))
+	}
+	if out == nil {
+		return nil
+	}
+	if err := json.Unmarshal(raw, out); err != nil {
+		return fmt.Errorf("paddle: decode %s %s: %w", method, path, err)
+	}
+	return nil
+}
+
+type updateSubscriptionRequest struct {
+	Items                []reqItem `json:"items"`
+	ProrationBillingMode string    `json:"proration_billing_mode"`
+}
+
+type reqItem struct {
+	PriceID  string `json:"price_id"`
+	Quantity int    `json:"quantity"`
+}
+
+func (c *httpClient) UpdateSubscriptionItems(ctx context.Context, subID string, items []LineItem) error {
+	if subID == "" {
+		return fmt.Errorf("paddle: empty subscription id")
+	}
+	reqItems := make([]reqItem, 0, len(items))
+	for _, it := range items {
+		reqItems = append(reqItems, reqItem{PriceID: it.PriceID, Quantity: it.Quantity})
+	}
+	return c.do(ctx, http.MethodPatch, "/subscriptions/"+subID, updateSubscriptionRequest{
+		Items:                reqItems,
+		ProrationBillingMode: "prorated_immediately",
+	}, nil)
+}
+
+func (c *httpClient) PortalSession(ctx context.Context, customerID string) (string, error) {
+	if customerID == "" {
+		return "", fmt.Errorf("paddle: empty customer id")
+	}
+	var out struct {
+		Data struct {
+			URLs struct {
+				General struct {
+					Overview string `json:"overview"`
+				} `json:"general"`
+			} `json:"urls"`
+		} `json:"data"`
+	}
+	if err := c.do(ctx, http.MethodPost,
+		"/customers/"+customerID+"/portal-sessions", struct{}{}, &out); err != nil {
+		return "", err
+	}
+	return out.Data.URLs.General.Overview, nil
+}

admin/internal/paddle/webhook.go

@@ -0,0 +1,42 @@
+package paddle
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"strings"
+)
+
+// VerifySignature checks a raw webhook body against the Paddle-Signature header.
+//
+// Paddle signs an HMAC-SHA256 over "ts:body", carried as "ts=<unix>;h1=<hex>".
+// It uses a constant-time compare and never logs the secret. A false return is
+// always a 401 with nothing processed — an unverified body could be anyone
+// claiming a subscription was paid for.
+func VerifySignature(secret, header string, body []byte) bool {
+	if secret == "" || header == "" {
+		return false
+	}
+	var ts, h1 string
+	for _, part := range strings.Split(header, ";") {
+		k, v, ok := strings.Cut(part, "=")
+		if !ok {
+			continue
+		}
+		switch k {
+		case "ts":
+			ts = v
+		case "h1":
+			h1 = v
+		}
+	}
+	if ts == "" || h1 == "" {
+		return false
+	}
+	mac := hmac.New(sha256.New, []byte(secret))
+	mac.Write([]byte(ts))
+	mac.Write([]byte(":"))
+	mac.Write(body)
+	want := hex.EncodeToString(mac.Sum(nil))
+	return hmac.Equal([]byte(want), []byte(h1))
+}

adminsite/Dockerfile

@@ -19,6 +19,18 @@ ENV NEXT_PUBLIC_ADMIN_API_URL=$NEXT_PUBLIC_ADMIN_API_URL
 ARG NEXT_PUBLIC_ADMIN_ENV=production
 ENV NEXT_PUBLIC_ADMIN_ENV=$NEXT_PUBLIC_ADMIN_ENV
 
+# Browser checkout. The client token and environment are baked in, never
+# fetched, so a production build cannot load a sandbox token by accident.
+ARG NEXT_PUBLIC_PADDLE_CLIENT_TOKEN=
+ENV NEXT_PUBLIC_PADDLE_CLIENT_TOKEN=$NEXT_PUBLIC_PADDLE_CLIENT_TOKEN
+ARG NEXT_PUBLIC_PADDLE_ENV=sandbox
+ENV NEXT_PUBLIC_PADDLE_ENV=$NEXT_PUBLIC_PADDLE_ENV
+
+# Marketing site origin. Signup lives there (/start), not here; empty renders no
+# link at all rather than one that 404s.
+ARG NEXT_PUBLIC_SITE_URL=
+ENV NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL
+
 RUN npm run build
 
 FROM node:26-alpine AS runner

adminsite/app/(customer)/billing/page.tsx

@@ -5,6 +5,7 @@ import { API_BASE, NotConnected, api } from "@/lib/api";
 import { NotConnectedPanel } from "@/components/NotConnected";
 import { PageFrame, RailCard, RailFacts } from "@/components/PageFrame";
 import { PageHeader } from "@/components/PageHeader";
+import { ManageBillingButton } from "@/components/ManageBillingButton";
 import { formatDate } from "@/lib/format";
 
 export default function BillingPage() {
@@ -19,19 +20,14 @@ export default function BillingPage() {
     // Each subscription names the instance it pays for, because tier and term
     // are per-licence rather than per-account. Resolving the name here is the
     // difference between "professional · annual" and knowing which install that is.
-    const nameFor = (instanceId?: string) =>
-        account.data?.instances.find((i) => i.instance_id === instanceId)?.name;
+    const nameFor = (instanceId?: string) => account.data?.instances.find((i) => i.instance_id === instanceId)?.name;
 
     return (
         <div className="grid gap-6">
             <PageHeader
                 title="Billing"
-                subtitle="One subscription per instance — each carries its own tier and term."
-                record={
-                    account.data
-                        ? [{ key: "Billing", value: account.data.account.billing_email }]
-                        : undefined
-                }
+                subtitle="One subscription per instance each carries its own tier and term."
+                record={account.data ? [{ key: "Billing", value: account.data.account.billing_email }] : undefined}
             />
 
             <PageFrame
@@ -50,15 +46,10 @@ export default function BillingPage() {
                             />
                         </RailCard>
                         <RailCard title="Need a change?">
-                            <p className="text-[0.82rem] text-ink-2">
-                                To change a card, download an invoice or cancel, email support and
-                                we will send you a billing link. Self-service billing arrives with
-                                card payments.
-                            </p>
-                            <a
-                                href="mailto:support@hostxtra.co.uk"
-                                className="text-[0.82rem] font-semibold text-accent underline"
-                            >
+                            <p className="text-[0.82rem] text-ink-2">Change a card, download an invoice or cancel from the billing portal. It covers every subscription on this account.</p>
+                            <ManageBillingButton />
+                            <p className="text-[0.82rem] text-ink-2">Anything else, email support.</p>
+                            <a href="mailto:support@hostxtra.co.uk" className="text-[0.82rem] font-semibold text-accent underline">
                                 support@hostxtra.co.uk
                             </a>
                         </RailCard>
@@ -66,10 +57,7 @@ export default function BillingPage() {
                 }
             >
                 {rows.length === 0 ? (
-                    <p className="rounded border border-rule bg-panel p-5 text-ink-2">
-                        You have no subscriptions. Cloud instances and self-hosted licences are
-                        both bought from the pricing page.
-                    </p>
+                    <p className="rounded border border-rule bg-panel p-5 text-ink-2">You have no subscriptions. Cloud instances and self-hosted licences are both bought from the pricing page.</p>
                 ) : (
                     <div className="overflow-x-auto rounded border border-rule bg-panel">
                         <table className="w-full border-collapse text-left">
@@ -84,21 +72,12 @@ export default function BillingPage() {
                             </thead>
                             <tbody>
                                 {rows.map((s) => (
-                                    <tr
-                                        key={s.subscription_id}
-                                        className="border-b border-rule-soft last:border-0"
-                                    >
-                                        <td className="px-4 py-3">
-                                            {nameFor(s.instance_id) ?? (
-                                                <span className="text-ink-3">Not linked yet</span>
-                                            )}
-                                        </td>
+                                    <tr key={s.subscription_id} className="border-b border-rule-soft last:border-0">
+                                        <td className="px-4 py-3">{nameFor(s.instance_id) ?? <span className="text-ink-3">Not linked yet</span>}</td>
                                         <td className="px-4 py-3">{s.tier.replace("_", " ")}</td>
                                         <td className="px-4 py-3">{s.term}</td>
                                         <td className="px-4 py-3">{s.status}</td>
-                                        <td className="px-4 py-3 font-mono tabular-nums">
-                                            {formatDate(s.current_period_end)}
-                                        </td>
+                                        <td className="px-4 py-3 font-mono tabular-nums">{formatDate(s.current_period_end)}</td>
                                     </tr>
                                 ))}
                             </tbody>

adminsite/app/(customer)/instances/link/LinkForm.tsx

@@ -7,9 +7,17 @@ import { Field } from "@/components/Field";
 
 const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
 
-export function LinkForm({ onLinked }: { onLinked: (instanceId: string) => void }) {
+export function LinkForm({
+    onLinked,
+    claimId,
+}: {
+    onLinked: (instanceId: string) => void;
+    // The PAID placeholder awaiting its real install UUID: claim it in place. The
+    // name was chosen at checkout, so it is not asked for again. Self-hosted Free
+    // is created on the purchase page instead, not here.
+    claimId: string;
+}) {
     const [id, setId] = useState("");
-    const [name, setName] = useState("");
     const [error, setError] = useState<string | undefined>();
     const [busy, setBusy] = useState(false);
 
@@ -28,7 +36,7 @@ export function LinkForm({ onLinked }: { onLinked: (instanceId: string) => void
         setBusy(true);
         setError(undefined);
         try {
-            const inst = await api.link(value, name.trim());
+            const inst = await api.claimLink(claimId, value);
             onLinked(inst.instance_id);
         } catch (err) {
             setError(
@@ -58,12 +66,6 @@ export function LinkForm({ onLinked }: { onLinked: (instanceId: string) => void
                     </>
                 }
             />
-            <Field
-                label="Name it (optional)"
-                value={name}
-                onChange={(e) => setName(e.target.value)}
-                hint="So you can tell it apart from your other installs."
-            />
             <Button type="submit" disabled={busy} className="justify-self-start">
                 {busy ? "Linking…" : "Link and issue licence"}
             </Button>

adminsite/app/(customer)/instances/link/page.tsx

@@ -1,6 +1,7 @@
 "use client";
 
-import { useRouter } from "next/navigation";
+import { useEffect } from "react";
+import { useRouter, useSearchParams } from "next/navigation";
 import { useQueryClient } from "@tanstack/react-query";
 import { LinkForm } from "./LinkForm";
 import { PageHeader } from "@/components/PageHeader";
@@ -8,6 +9,16 @@ import { PageHeader } from "@/components/PageHeader";
 export default function LinkPage() {
     const router = useRouter();
     const qc = useQueryClient();
+    // This page only claims a PAID placeholder's real install UUID. Self-hosted
+    // Free is created on the purchase page, so with no placeholder to claim there
+    // is nothing to do here send them there.
+    const claimId = useSearchParams().get("claim") ?? undefined;
+
+    useEffect(() => {
+        if (!claimId) router.replace("/purchase");
+    }, [claimId, router]);
+
+    if (!claimId) return null;
 
     return (
         <div className="grid max-w-2xl gap-6">
@@ -17,6 +28,7 @@ export default function LinkPage() {
                 subtitle="Every licence is tied to one install, so we need its ID before we can issue yours. Paste it below and your licence is ready on the next screen."
             />
             <LinkForm
+                claimId={claimId}
                 onLinked={(instanceId) => {
                     qc.invalidateQueries({ queryKey: ["account"] });
                     // Straight to the download, not back to a list: the licence is

adminsite/app/(customer)/instances/new/CreateForm.tsx

@@ -1,65 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { useRouter } from "next/navigation";
-import { useMutation, useQueryClient } from "@tanstack/react-query";
-import { ApiError, api } from "@/lib/api";
-import { Button } from "@/components/Button";
-import { Field } from "@/components/Field";
-
-function slugify(value: string) {
-    return value
-        .toLowerCase()
-        .trim()
-        .replace(/[^a-z0-9]+/g, "-")
-        .replace(/^-|-$/g, "");
-}
-
-export function CreateForm() {
-    const [name, setName] = useState("");
-    const [error, setError] = useState<string | null>(null);
-    const router = useRouter();
-    const qc = useQueryClient();
-
-    const create = useMutation({
-        mutationFn: () => api.createInstance(name.trim()),
-        onSuccess: async () => {
-            await qc.invalidateQueries({ queryKey: ["account"] });
-            router.push("/");
-        },
-        onError: (e) =>
-            setError(e instanceof ApiError ? e.message : "Something went wrong. Try again."),
-    });
-
-    const slug = slugify(name);
-
-    return (
-        <form
-            className="grid max-w-md gap-4"
-            onSubmit={(e) => {
-                e.preventDefault();
-                setError(null);
-                if (name.trim()) create.mutate();
-            }}
-        >
-            <Field
-                label="Instance name"
-                value={name}
-                onChange={(e) => setName(e.target.value)}
-                placeholder="Northgate Systems"
-                required
-                error={error ?? undefined}
-                hint={`${slug || "your-instance"}.vantage.hostxtra.co.uk`}
-            />
-
-            <p className="text-[0.82rem] text-ink-2">
-                You sign in to it with this same email address and password. Changing your Vantage
-                HQ password changes it here too.
-            </p>
-
-            <Button type="submit" disabled={create.isPending || !name.trim()}>
-                {create.isPending ? "Creating…" : "Create instance"}
-            </Button>
-        </form>
-    );
-}

adminsite/app/(customer)/instances/new/page.tsx

@@ -1,18 +0,0 @@
-import type { Metadata } from "next";
-import { CreateForm } from "./CreateForm";
-import { PageHeader } from "@/components/PageHeader";
-
-export const metadata: Metadata = { title: "New instance" };
-
-export default function NewInstancePage() {
-    return (
-        <div className="grid gap-6">
-            <PageHeader
-                back={{ href: "/", label: "Overview" }}
-                title="Create a free instance"
-                subtitle="An instance owns its servers, keys, workflows, monitors and secrets. Nothing inside it is visible to any other instance. Free covers three servers, and the licence runs for a month at a time — we email you before it needs renewing."
-            />
-            <CreateForm />
-        </div>
-    );
-}

adminsite/app/(customer)/layout.tsx

@@ -6,8 +6,8 @@ import { RequireKind } from "@/lib/session";
 import { AppBar, type NavLink } from "@/components/AppBar";
 
 /*
- * Three destinations, not five. Settings moved into the account menu — it is
- * your password, not a place — and Instances went with it, because Overview
+ * Three destinations, not five. Settings moved into the account menu it is
+ * your password, not a place and Instances went with it, because Overview
  * already lists them and a second door to the same room is just a second thing
  * to keep in sync. Linking an install is an action, so it is a button on
  * Overview rather than a permanent nav entry.
@@ -22,11 +22,7 @@ function AccountName() {
     // Shares the ["account"] key with Overview, so this costs no extra request.
     const { data } = useQuery({ queryKey: ["account"], queryFn: api.account });
     if (!data) return null;
-    return (
-        <span className="block truncate text-[0.92rem] font-bold tracking-[-0.01em]">
-            {data.account.name}
-        </span>
-    );
+    return <span className="block truncate text-[0.92rem] font-bold tracking-[-0.01em]">{data.account.name}</span>;
 }
 
 export default function CustomerLayout({ children }: { children: React.ReactNode }) {

adminsite/app/(customer)/page.tsx

@@ -35,14 +35,12 @@ export default function OverviewPage() {
     const live = data.instances.filter((i) => i.status !== "deleted");
 
     // Work the customer has to do, gathered across every instance. This is the
-    // only account-level view of it — each record only knows about itself.
+    // only account-level view of it each record only knows about itself.
     const attention = live.flatMap((i) => {
         const lic = byInstance.get(i.instance_id);
         const state = licenceState(lic?.expires_at, Boolean(lic));
-        if (state === "none")
-            return [{ id: i.instance_id, text: `${i.name || "An instance"} is not linked`, note: "" }];
-        if (state === "expired")
-            return [{ id: i.instance_id, text: `${i.name} has expired`, note: "now" }];
+        if (state === "none") return [{ id: i.instance_id, text: `${i.name || "An instance"} is not linked`, note: "" }];
+        if (state === "expired") return [{ id: i.instance_id, text: `${i.name} has expired`, note: "now" }];
         if (state === "warn")
             return [
                 {
@@ -55,51 +53,31 @@ export default function OverviewPage() {
     });
 
     const pending = (people.data ?? []).filter((p) => !p.verified_at).length;
-    const hasFree = live.some((i) => i.tier === "free" && i.status !== "cancelled");
 
     const subtitle =
-        live.length === 0
-            ? "Nothing here yet."
-            : `${live.length} ${live.length === 1 ? "instance" : "instances"}${
-                  attention.length ? ` · ${attention.length} needing attention` : " · all licensed"
-              }`;
+        live.length === 0 ? "Nothing here yet." : `${live.length} ${live.length === 1 ? "instance" : "instances"}${attention.length ? ` · ${attention.length} needing attention` : " · all licensed"}`;
 
     return (
         <div className="grid gap-6">
             <PageHeader
                 title="Overview"
                 subtitle={subtitle}
-                actions={
-                    !hasFree && live.length > 0 ? (
-                        <LinkButton variant="line" href="/instances/new">
-                            Create a free instance
-                        </LinkButton>
-                    ) : undefined
-                }
+                actions={live.length > 0 ? <LinkButton href="/purchase">Buy a plan</LinkButton> : undefined}
                 record={[
                     { key: "Account", value: data.account.account_id, copy: true },
                     { key: "Billing", value: data.account.billing_email },
                 ]}
-                status={
-                    attention.length === 0 && live.length > 0 ? (
-                        <StatePill state="valid" />
-                    ) : undefined
-                }
+                status={attention.length === 0 && live.length > 0 ? <StatePill state="valid" /> : undefined}
             />
 
             {live.length === 0 ? (
                 <div className="grid max-w-xl gap-3 rounded border border-rule bg-panel p-5">
                     <h2 className="text-xl">No instances yet</h2>
                     <p className="text-ink-2">
-                        Create a free cloud instance and we host it, with your licence applied
-                        automatically. Or buy a self-hosted licence, install Vantage on your own
-                        server, and link it here to get your licence file.
+                        Create a free cloud instance and we host it, with your licence applied automatically. Or run Vantage on your own server and get its licence free or paid from the purchase page.
                     </p>
                     <div className="flex flex-wrap gap-2.5">
-                        <LinkButton href="/instances/new">Create a free instance</LinkButton>
-                        <LinkButton variant="line" href="/instances/link">
-                            Link an install
-                        </LinkButton>
+                        <LinkButton href="/purchase">Buy a plan</LinkButton>
                     </div>
                 </div>
             ) : (
@@ -110,16 +88,9 @@ export default function OverviewPage() {
                                 <RailCard title="Needs you" count={attention.length}>
                                     <ul className="grid gap-2">
                                         {attention.map((a) => (
-                                            <li
-                                                key={a.id}
-                                                className="flex items-center justify-between gap-2.5 text-[0.82rem] text-ink-2"
-                                            >
+                                            <li key={a.id} className="flex items-center justify-between gap-2.5 text-[0.82rem] text-ink-2">
                                                 <span>{a.text}</span>
-                                                {a.note && (
-                                                    <span className="font-mono text-[0.64rem] uppercase tracking-[0.08em] text-warn">
-                                                        {a.note}
-                                                    </span>
-                                                )}
+                                                {a.note && <span className="font-mono text-[0.64rem] uppercase tracking-[0.08em] text-warn">{a.note}</span>}
                                             </li>
                                         ))}
                                     </ul>
@@ -129,27 +100,18 @@ export default function OverviewPage() {
                             <RailCard title="Your team" count={people.data?.length}>
                                 <ul className="grid gap-2">
                                     {(people.data ?? []).slice(0, 5).map((p) => (
-                                        <li
-                                            key={p.user_id}
-                                            className="flex items-center justify-between gap-2.5 text-[0.82rem] text-ink-2"
-                                        >
+                                        <li key={p.user_id} className="flex items-center justify-between gap-2.5 text-[0.82rem] text-ink-2">
                                             <span className="truncate">{p.email}</span>
-                                            <span className="shrink-0 font-mono text-[0.64rem] uppercase tracking-[0.08em] text-ink-3">
-                                                {p.account_role}
-                                            </span>
+                                            <span className="shrink-0 font-mono text-[0.64rem] uppercase tracking-[0.08em] text-ink-3">{p.account_role}</span>
                                         </li>
                                     ))}
                                 </ul>
                                 {pending > 0 && (
                                     <p className="border-t border-rule-soft pt-2 text-[0.78rem] text-warn">
-                                        {pending} {pending === 1 ? "invitation" : "invitations"} not
-                                        accepted yet
+                                        {pending} {pending === 1 ? "invitation" : "invitations"} not accepted yet
                                     </p>
                                 )}
-                                <Link
-                                    href="/users"
-                                    className="text-[0.82rem] font-semibold text-accent underline"
-                                >
+                                <Link href="/users" className="text-[0.82rem] font-semibold text-accent underline">
                                     Manage people
                                 </Link>
                             </RailCard>
@@ -157,7 +119,7 @@ export default function OverviewPage() {
                             {/*
                              * Account-level facts only. Tier, limits and renewal date
                              * belong to a licence, and a licence belongs to one
-                             * instance — an account holding a Free cloud instance and
+                             * instance an account holding a Free cloud instance and
                              * a Professional self-hosted one has no single plan.
                              */}
                             <RailCard title="Account">
@@ -171,24 +133,15 @@ export default function OverviewPage() {
                                         },
                                     ]}
                                 />
-                                <Link
-                                    href="/billing"
-                                    className="text-[0.82rem] font-semibold text-accent underline"
-                                >
+                                <Link href="/billing" className="text-[0.82rem] font-semibold text-accent underline">
                                     Billing history
                                 </Link>
                             </RailCard>
 
                             <RailCard title="Running Vantage yourself?">
-                                <p className="text-[0.82rem] text-ink-2">
-                                    Link your own install to get its licence file. It keeps its own
-                                    users.
-                                </p>
-                                <Link
-                                    href="/instances/link"
-                                    className="text-[0.82rem] font-semibold text-accent underline"
-                                >
-                                    Link an install
+                                <p className="text-[0.82rem] text-ink-2">Get a licence for your own install free or paid from the purchase page. It keeps its own users.</p>
+                                <Link href="/purchase" className="text-[0.82rem] font-semibold text-accent underline">
+                                    Get a licence
                                 </Link>
                             </RailCard>
                         </>
@@ -205,12 +158,7 @@ export default function OverviewPage() {
                                 // Open when it is the only one, or when it is the
                                 // first thing that needs a decision. A saved toggle
                                 // beats this from then on.
-                                defaultOpen={
-                                    live.length === 1 ||
-                                    (state !== "valid" &&
-                                        attention[0]?.id === i.instance_id) ||
-                                    (attention.length === 0 && n === 0)
-                                }
+                                defaultOpen={live.length === 1 || (state !== "valid" && attention[0]?.id === i.instance_id) || (attention.length === 0 && n === 0)}
                             />
                         );
                     })}

adminsite/app/(customer)/purchase/PurchaseForm.tsx

@@ -0,0 +1,794 @@
+"use client";
+
+import { useEffect, useMemo, useState } from "react";
+import { useRouter } from "next/navigation";
+import Link from "next/link";
+import { useMutation, useQuery } from "@tanstack/react-query";
+import { ApiError, api, lineItemsFor, type CatalogueRow, type CheckoutOptions, type Deployment, type Plan, type Term, type Tier } from "@/lib/api";
+import { initPaddle, previewPrices, type PricePreview } from "@/lib/paddle";
+
+/* Tiers in the order a customer reads them, cheapest first. */
+const TIER_ORDER: Tier[] = ["free", "professional", "enterprise"];
+
+const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+
+/* Human labels for feature keys. The catalogue names them by key; this is the
+ * one place the customer-facing wording lives. */
+const FEATURE_LABEL: Record<string, string> = {
+    console: "Browser console",
+    oidc: "Single sign-on",
+};
+const FEATURE_DESC: Record<string, string> = {
+    console: "In-browser SSH, RDP and VNC sessions",
+    oidc: "OIDC sign-in for your whole team",
+};
+function featureLabel(key: string) {
+    return FEATURE_LABEL[key] ?? key;
+}
+
+interface Choice {
+    tier: Tier;
+    term: Term;
+    servers: number;
+    features: string[];
+}
+
+/* What a plan offers a given feature: included in the base, a paid add-on, or
+ * absent. Drives both the tier cards and the configurator toggles. */
+type FeatureState = "included" | "addon" | "absent";
+
+function featureStateFor(plan: Plan | undefined, rows: CatalogueRow[], env: string, term: Term, key: string): FeatureState {
+    if (plan?.base_features.includes(key)) return "included";
+    const row = rows.find((r) => r.kind === "feature" && r.feature_key === key);
+    const priced = Boolean(row?.price_ids?.[env]?.[term]);
+    return priced ? "addon" : "absent";
+}
+
+export function PurchaseForm() {
+    const router = useRouter();
+    const account = useQuery({ queryKey: ["account"], queryFn: api.account });
+    const optionsQ = useQuery({ queryKey: ["checkout-options"], queryFn: api.checkoutOptions });
+
+    const [dep, setDep] = useState<Deployment>("cloud");
+    const [choice, setChoice] = useState<Choice>({
+        tier: "professional",
+        term: "annual",
+        servers: 3,
+        features: [],
+    });
+    const [name, setName] = useState("");
+    const [error, setError] = useState<string | null>(null);
+
+    // Follow-up phase after a checkout has been started.
+    const [pending, setPending] = useState<null | {
+        instanceId: string;
+        deployment: Deployment;
+    }>(null);
+    const [uuid, setUuid] = useState("");
+
+    const options = optionsQ.data;
+    const accountId = account.data?.account.account_id ?? "";
+
+    // Distinct feature keys offered on this deployment, in a stable order.
+    const featureKeys = useMemo(() => {
+        if (!options) return [] as string[];
+        const keys = new Set<string>();
+        for (const r of options.catalogue) {
+            if (r.deployment === dep && r.kind === "feature" && r.feature_key) {
+                keys.add(r.feature_key);
+            }
+        }
+        return [...keys];
+    }, [options, dep]);
+
+    const activePlans = useMemo(() => (options?.plans ?? []).filter((p) => p.deployment === dep && p.active).sort((a, b) => TIER_ORDER.indexOf(a.tier) - TIER_ORDER.indexOf(b.tier)), [options, dep]);
+    const plan = activePlans.find((p) => p.tier === choice.tier);
+    const baseServers = plan?.base_limits.max_servers ?? 0;
+    const unlimited = baseServers === -1;
+
+    const rows = useMemo(() => (options?.catalogue ?? []).filter((r) => r.deployment === dep && r.tier === choice.tier), [options, dep, choice.tier]);
+
+    // Real line items for the current configuration the same builder the
+    // checkout uses, so the summary can never disagree with the overlay.
+    const items = useMemo(() => (options ? lineItemsFor(options, choice, dep) : []), [options, choice, dep]);
+
+    // Real, localised prices from Paddle for those items.
+    const [receiptPrice, setReceiptPrice] = useState<PricePreview | null>(null);
+    useEffect(() => {
+        let live = true;
+        previewPrices(items).then((p) => {
+            if (live) setReceiptPrice(p);
+        });
+        return () => {
+            live = false;
+        };
+    }, [items]);
+
+    // A headline "base" price per tier, all previewed in one call.
+    const [basePrices, setBasePrices] = useState<Record<string, string>>({});
+    useEffect(() => {
+        if (!options) return;
+        const baseItems: { priceId: string; quantity: number; tier: Tier }[] = [];
+        for (const p of activePlans) {
+            const row = options.catalogue.find((r) => r.deployment === dep && r.tier === p.tier && r.kind === "base");
+            const id = row?.price_ids?.[options.env]?.[choice.term];
+            if (id) baseItems.push({ priceId: id, quantity: 1, tier: p.tier });
+        }
+        let live = true;
+        previewPrices(baseItems.map(({ priceId, quantity }) => ({ priceId, quantity }))).then((p) => {
+            if (!live) return;
+            const next: Record<string, string> = {};
+            if (p) {
+                for (const bi of baseItems) {
+                    const line = p.lines[bi.priceId];
+                    if (line) next[bi.tier] = line.total;
+                }
+            }
+            setBasePrices(next);
+        });
+        return () => {
+            live = false;
+        };
+    }, [options, dep, choice.term, activePlans]);
+
+    // --- actions -----------------------------------------------------------
+
+    const createFree = useMutation({
+        mutationFn: () => api.createInstance(name.trim()),
+        onSuccess: () => router.push("/"),
+        onError: (e) => setError(e instanceof ApiError ? e.message : "Could not create the instance."),
+    });
+
+    // Self-hosted Free binds to the install's own UUID: register the instance,
+    // then issue its Free licence in one action.
+    const createSelfHostedFree = useMutation({
+        mutationFn: async () => {
+            const inst = await api.link(uuid.trim(), name.trim());
+            await api.claimFree(inst.instance_id);
+            return inst.instance_id;
+        },
+        onSuccess: (id) => router.push(`/instances/${id}`),
+        onError: (e) => setError(e instanceof ApiError ? e.message : "Could not create the licence."),
+    });
+
+    const startCheckout = useMutation({
+        mutationFn: async () => {
+            const trimmed = name.trim();
+            const r = dep === "cloud" ? await api.createCloudCheckout(trimmed) : await api.createSelfHosted(trimmed);
+            return r.instance_id;
+        },
+        onSuccess: async (instanceId) => {
+            setPending({ instanceId, deployment: dep });
+            const paddle = await initPaddle();
+            paddle?.Checkout.open({
+                items: items.map((i) => ({ priceId: i.priceId, quantity: i.quantity })),
+                customData: { account_id: accountId, instance_id: instanceId },
+            });
+        },
+        onError: (e) => setError(e instanceof ApiError ? e.message : "Could not start checkout."),
+    });
+
+    const claim = useMutation({
+        mutationFn: () => api.claimLink(pending!.instanceId, uuid.trim()),
+        onSuccess: () => router.push("/"),
+        onError: (e) => setError(e instanceof ApiError ? e.message : "Could not link the install."),
+    });
+
+    if (optionsQ.isLoading || account.isLoading) {
+        return <p className="text-ink-3">Loading plans…</p>;
+    }
+    if (!options) {
+        return <p className="text-ink-2">Plans are unavailable right now. Try again shortly.</p>;
+    }
+
+    const selfHostedFree = dep === "self_hosted" && choice.tier === "free";
+    const cloudFree = dep === "cloud" && choice.tier === "free";
+    const paid = choice.tier !== "free";
+
+    return (
+        <div className="grid items-start gap-6 lg:grid-cols-[minmax(0,1fr)_340px]">
+            {/* ---- main column ---- */}
+            <div className="grid min-w-0 gap-6">
+                <Block n={1} label="Deployment">
+                    <Seg
+                        value={dep}
+                        onChange={(v) => {
+                            const next = v as Deployment;
+                            setDep(next);
+                            // Self-hosted sells annual only; clamp the term.
+                            setChoice((c) => ({
+                                ...c,
+                                term: next === "self_hosted" ? "annual" : c.term,
+                            }));
+                        }}
+                        options={[
+                            {
+                                value: "cloud",
+                                icon: cloudIcon,
+                                title: "Cloud",
+                                sub: "We host and manage it · monthly or annual",
+                            },
+                            {
+                                value: "self_hosted",
+                                icon: serverIcon,
+                                title: "Self-hosted",
+                                sub: "Runs on your own servers · annual only",
+                            },
+                        ]}
+                    />
+                </Block>
+
+                {dep === "cloud" && (
+                    <Block n={2} label="Billing">
+                        <Seg
+                            value={choice.term}
+                            onChange={(v) => setChoice((c) => ({ ...c, term: v as Term }))}
+                            options={[
+                                {
+                                    value: "monthly",
+                                    icon: calendarIcon,
+                                    title: "Monthly",
+                                    sub: "Pay as you go · cancel anytime",
+                                },
+                                {
+                                    value: "annual",
+                                    icon: annualIcon,
+                                    title: "Annual",
+                                    sub: "2 months free vs monthly",
+                                },
+                            ]}
+                        />
+                    </Block>
+                )}
+
+                <Block n={dep === "cloud" ? 3 : 2} label="Plan">
+                    <div className="grid gap-3 sm:grid-cols-3">
+                        {activePlans.map((p) => (
+                            <TierCard
+                                key={p.tier}
+                                plan={p}
+                                selected={p.tier === choice.tier}
+                                headline={p.tier === "free" ? "£0" : basePrices[p.tier]}
+                                cycleLabel={cycleShort(dep, choice.term)}
+                                featureKeys={featureKeys}
+                                catalogue={options.catalogue.filter((r) => r.deployment === dep && r.tier === p.tier)}
+                                env={options.env}
+                                term={choice.term}
+                                onSelect={() =>
+                                    setChoice((c) => ({
+                                        ...c,
+                                        tier: p.tier,
+                                        // Moving tier moves the floor; clamp up.
+                                        servers: Math.max(c.servers, p.base_limits.max_servers === -1 ? c.servers : p.base_limits.max_servers),
+                                        // Drop add-ons the new tier does not sell.
+                                        features: c.features.filter((k) => {
+                                            const st = featureStateFor(
+                                                p,
+                                                options.catalogue.filter((r) => r.deployment === dep && r.tier === p.tier),
+                                                options.env,
+                                                c.term,
+                                                k,
+                                            );
+                                            return st === "addon";
+                                        }),
+                                    }))
+                                }
+                            />
+                        ))}
+                    </div>
+                </Block>
+
+                {paid && (
+                    <Block n={dep === "cloud" ? 4 : 3} label="Configure">
+                        <div className="rounded border border-rule bg-panel p-4">
+                            {/* servers */}
+                            <Row title="Managed servers" desc={unlimited ? "Unlimited servers included in this plan" : `${baseServers} included`}>
+                                {unlimited ? (
+                                    <span className="text-[0.72rem] font-semibold uppercase tracking-[0.06em] text-valid">Unlimited</span>
+                                ) : (
+                                    <Stepper value={choice.servers} min={baseServers} max={500} onChange={(servers) => setChoice((c) => ({ ...c, servers }))} />
+                                )}
+                            </Row>
+
+                            {/* features */}
+                            {featureKeys.map((key) => {
+                                const st = featureStateFor(plan, rows, options.env, choice.term, key);
+                                return (
+                                    <Row key={key} title={featureLabel(key)} desc={FEATURE_DESC[key] ?? ""} dim={st === "absent"}>
+                                        {st === "included" ? (
+                                            <span className="text-[0.72rem] font-semibold uppercase tracking-[0.06em] text-valid">Included</span>
+                                        ) : st === "absent" ? (
+                                            <span className="font-mono text-[0.76rem] text-ink-3">Not in this plan</span>
+                                        ) : (
+                                            <Toggle
+                                                checked={choice.features.includes(key)}
+                                                onChange={(on) =>
+                                                    setChoice((c) => ({
+                                                        ...c,
+                                                        features: on ? [...c.features, key] : c.features.filter((f) => f !== key),
+                                                    }))
+                                                }
+                                            />
+                                        )}
+                                    </Row>
+                                );
+                            })}
+                        </div>
+                    </Block>
+                )}
+
+                {selfHostedFree && (
+                    <Block n={3} label="Your install">
+                        <div className="grid gap-3 rounded border border-rule bg-panel p-4">
+                            <p className="text-[0.86rem] text-ink-2">
+                                Install Vantage on your own server first, then paste the instance ID it reports. We register it and issue your Free licence nothing to pay.
+                            </p>
+                            <label className="grid gap-1">
+                                <span className="text-[0.72rem] font-semibold uppercase tracking-[0.08em] text-ink-3">Instance ID</span>
+                                <input
+                                    value={uuid}
+                                    onChange={(e) => setUuid(e.target.value)}
+                                    placeholder="00000000-0000-0000-0000-000000000000"
+                                    className="rounded border border-rule bg-panel px-2.5 py-2 font-mono text-[0.82rem] text-ink placeholder:text-ink-3"
+                                />
+                                <span className="text-[0.72rem] text-ink-3">Find this on your install&rsquo;s Settings → Licence page, or the setup screen just after first sign-in.</span>
+                            </label>
+                        </div>
+                    </Block>
+                )}
+            </div>
+
+            {/* ---- receipt rail ---- */}
+            <aside className="lg:sticky lg:top-5">
+                <div className="overflow-hidden rounded-[14px] border border-rule bg-panel shadow-[var(--shadow)]">
+                    <div className="flex items-center justify-between border-b border-rule-soft px-4 py-3.5">
+                        <h3 className="text-[0.95rem] font-semibold">Order summary</h3>
+                        <span className="rounded border border-rule px-1.5 py-0.5 font-mono text-[0.62rem] uppercase tracking-[0.07em] text-ink-3">{dep === "cloud" ? "Cloud" : "Self-hosted"}</span>
+                    </div>
+
+                    <Receipt options={options} dep={dep} choice={choice} plan={plan} items={items} price={receiptPrice} />
+
+                    {/* name + CTA */}
+                    <div className="grid gap-3 border-t border-rule px-4 py-4">
+                        {!pending && (
+                            <label className="grid gap-1">
+                                <span className="text-[0.72rem] font-semibold uppercase tracking-[0.08em] text-ink-3">Instance name</span>
+                                <input
+                                    value={name}
+                                    onChange={(e) => setName(e.target.value)}
+                                    placeholder="Northgate Systems"
+                                    className="rounded border border-rule bg-panel px-2.5 py-2 text-[0.9rem] text-ink placeholder:text-ink-3"
+                                />
+                            </label>
+                        )}
+
+                        {error && <p className="text-[0.82rem] text-expired">{error}</p>}
+
+                        {/* Phase A: choose an action for the configuration. */}
+                        {!pending &&
+                            (selfHostedFree ? (
+                                <Cta
+                                    label={createSelfHostedFree.isPending ? "Creating…" : "Create licence"}
+                                    variant="line"
+                                    disabled={!UUID_RE.test(uuid.trim()) || createSelfHostedFree.isPending}
+                                    onClick={() => {
+                                        setError(null);
+                                        createSelfHostedFree.mutate();
+                                    }}
+                                />
+                            ) : cloudFree ? (
+                                <Cta
+                                    label={createFree.isPending ? "Creating…" : "Create free instance"}
+                                    variant="line"
+                                    disabled={!name.trim() || createFree.isPending}
+                                    onClick={() => {
+                                        setError(null);
+                                        createFree.mutate();
+                                    }}
+                                />
+                            ) : (
+                                <Cta
+                                    label={startCheckout.isPending ? "Starting…" : "Continue to payment"}
+                                    disabled={!name.trim() || items.length === 0 || !accountId || startCheckout.isPending}
+                                    onClick={() => {
+                                        setError(null);
+                                        startCheckout.mutate();
+                                    }}
+                                />
+                            ))}
+
+                        {/* Phase B: after the checkout has been opened. */}
+                        {pending?.deployment === "self_hosted" && (
+                            <div className="grid gap-2 border-t border-rule-soft pt-3">
+                                <p className="text-[0.8rem] text-ink-2">Once payment clears, paste the instance ID your install reports (Settings → Licence) to receive your licence.</p>
+                                <input
+                                    value={uuid}
+                                    onChange={(e) => setUuid(e.target.value)}
+                                    placeholder="00000000-0000-0000-0000-000000000000"
+                                    className="rounded border border-rule bg-panel px-2.5 py-2 font-mono text-[0.82rem] text-ink placeholder:text-ink-3"
+                                />
+                                <Cta
+                                    label={claim.isPending ? "Linking…" : "Link and issue licence"}
+                                    disabled={!uuid.trim() || claim.isPending}
+                                    onClick={() => {
+                                        setError(null);
+                                        claim.mutate();
+                                    }}
+                                />
+                            </div>
+                        )}
+                        {pending?.deployment === "cloud" && (
+                            <div className="grid gap-2 border-t border-rule-soft pt-3">
+                                <p className="text-[0.8rem] text-ink-2">Your instance is being set up. Its licence appears the moment payment clears no further steps.</p>
+                                <Link href={`/instances/${pending.instanceId}`} className="font-semibold text-accent underline">
+                                    Go to your instance
+                                </Link>
+                            </div>
+                        )}
+                    </div>
+
+                    <div className="flex items-start gap-2 border-t border-rule-soft px-4 py-3 text-[0.72rem] text-ink-3">
+                        <LockIcon />
+                        <span>{paid ? "Secure checkout by Paddle, our reseller of record. VAT is added at checkout where applicable." : "No payment details required for the Free plan."}</span>
+                    </div>
+                </div>
+            </aside>
+        </div>
+    );
+}
+
+// ---------------------------------------------------------------------------
+// Presentational pieces
+// ---------------------------------------------------------------------------
+
+function cycleShort(dep: Deployment, term: Term) {
+    return dep === "cloud" ? (term === "annual" ? "/yr" : "/mo") : "/yr";
+}
+
+function Block({ n, label, children }: { n: number; label: string; children: React.ReactNode }) {
+    return (
+        <section className="grid gap-2.5">
+            <h2 className="flex items-center gap-2 text-[0.72rem] font-bold uppercase tracking-[0.1em] text-ink-3">
+                <span className="font-mono text-accent">{n}</span>
+                {label}
+            </h2>
+            {children}
+        </section>
+    );
+}
+
+interface SegOption {
+    value: string;
+    icon: React.ReactNode;
+    title: string;
+    sub: string;
+}
+
+function Seg({ value, onChange, options }: { value: string; onChange: (v: string) => void; options: SegOption[] }) {
+    return (
+        <div className="flex gap-1 rounded-[9px] border border-rule bg-panel-2 p-1">
+            {options.map((o) => {
+                const on = o.value === value;
+                return (
+                    <button
+                        key={o.value}
+                        type="button"
+                        aria-pressed={on}
+                        onClick={() => onChange(o.value)}
+                        className={`flex flex-1 items-center gap-3 rounded-[7px] px-4 py-3 text-left transition-colors ${on ? "bg-panel text-ink shadow-[var(--shadow)]" : "text-ink-2"}`}
+                    >
+                        <span
+                            className={`grid h-[34px] w-[34px] flex-none place-items-center rounded-lg border ${
+                                on ? "border-accent/40 bg-accent-wash text-accent" : "border-rule bg-panel text-ink-3"
+                            }`}
+                        >
+                            {o.icon}
+                        </span>
+                        <span className="flex flex-col leading-tight">
+                            <span className="text-[0.92rem] font-bold">{o.title}</span>
+                            <span className={`text-[0.72rem] font-medium ${on ? "text-accent" : "text-ink-3"}`}>{o.sub}</span>
+                        </span>
+                        <span className={`relative ml-auto h-[18px] w-[18px] flex-none rounded-full border-2 ${on ? "border-accent bg-accent" : "border-rule"}`}>
+                            {on && <span className="absolute inset-[3px] rounded-full bg-accent-ink" />}
+                        </span>
+                    </button>
+                );
+            })}
+        </div>
+    );
+}
+
+function TierCard({
+    plan,
+    selected,
+    headline,
+    cycleLabel,
+    featureKeys,
+    catalogue,
+    env,
+    term,
+    onSelect,
+}: {
+    plan: Plan;
+    selected: boolean;
+    headline?: string;
+    cycleLabel: string;
+    featureKeys: string[];
+    catalogue: CatalogueRow[];
+    env: string;
+    term: Term;
+    onSelect: () => void;
+}) {
+    const base = plan.base_limits.max_servers;
+    const servers = base === -1 ? "Unlimited servers" : `${base} server${base === 1 ? "" : "s"} included`;
+    return (
+        <button
+            type="button"
+            aria-pressed={selected}
+            onClick={onSelect}
+            className={`relative flex flex-col gap-3 rounded-xl border bg-panel p-4 text-left transition-[border-color,box-shadow] ${
+                selected ? "border-accent shadow-[0_0_0_1px_var(--accent)]" : "border-rule hover:border-accent/50"
+            }`}
+        >
+            {plan.tier === "professional" && (
+                <span className="absolute -top-2 right-3 rounded-full bg-accent px-2 py-0.5 text-[0.6rem] font-bold uppercase tracking-[0.08em] text-accent-ink">Most popular</span>
+            )}
+            <span className="flex items-center justify-between gap-2">
+                <span className="text-[1.05rem] font-extrabold tracking-[-0.02em]">{plan.name}</span>
+                <span className={`relative h-4 w-4 flex-none rounded-full border-2 ${selected ? "border-accent bg-accent" : "border-rule"}`}>
+                    {selected && <span className="absolute inset-[3px] rounded-full bg-accent-ink" />}
+                </span>
+            </span>
+            <span className="flex items-baseline gap-1">
+                <span className="text-[1.5rem] font-extrabold tracking-[-0.03em] tabular-nums">{headline ?? "—"}</span>
+                <span className="text-[0.72rem] text-ink-3">{plan.tier === "free" ? "forever" : cycleLabel}</span>
+            </span>
+            <ul className="grid gap-1.5 text-[0.8rem] text-ink-2">
+                <FeatureLine on>{servers}</FeatureLine>
+                {featureKeys.map((key) => {
+                    const st = featureStateFor(plan, catalogue, env, term, key);
+                    return (
+                        <FeatureLine key={key} on={st !== "absent"}>
+                            {featureLabel(key)}
+                            {st === "included" ? " included" : st === "addon" ? " add-on" : " not available"}
+                        </FeatureLine>
+                    );
+                })}
+                <FeatureLine on>{supportLabel(plan.support_level)} support</FeatureLine>
+            </ul>
+        </button>
+    );
+}
+
+function supportLabel(level: string) {
+    switch (level) {
+        case "community":
+            return "Community";
+        case "email_24_5":
+            return "Email, 24/5";
+        case "email_call_24_7":
+            return "Email + call, 24/7";
+        default:
+            return level;
+    }
+}
+
+function FeatureLine({ on, children }: { on: boolean; children: React.ReactNode }) {
+    return (
+        <li className={`flex items-start gap-2 ${on ? "" : "text-ink-3"}`}>
+            <span className={`mt-0.5 flex-none ${on ? "text-valid" : "text-ink-3"}`} aria-hidden>
+                {on ? (
+                    <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="3" strokeLinecap="round" strokeLinejoin="round">
+                        <path d="M20 6 9 17l-5-5" />
+                    </svg>
+                ) : (
+                    <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="3" strokeLinecap="round">
+                        <path d="M5 12h14" />
+                    </svg>
+                )}
+            </span>
+            <span>{children}</span>
+        </li>
+    );
+}
+
+function Row({ title, desc, dim, children }: { title: string; desc: string; dim?: boolean; children: React.ReactNode }) {
+    return (
+        <div className={`flex items-center justify-between gap-4 border-b border-rule-soft py-3.5 first:pt-0 last:border-0 last:pb-0 ${dim ? "opacity-55" : ""}`}>
+            <div className="min-w-0">
+                <h4 className="text-[0.9rem] font-semibold">{title}</h4>
+                {desc && <p className="text-[0.78rem] text-ink-3">{desc}</p>}
+            </div>
+            <div className="flex-none">{children}</div>
+        </div>
+    );
+}
+
+function Stepper({ value, min, max, onChange }: { value: number; min: number; max: number; onChange: (v: number) => void }) {
+    const clamp = (v: number) => Math.min(max, Math.max(min, v));
+    return (
+        <div className="inline-flex items-center overflow-hidden rounded-lg border border-rule">
+            <button
+                type="button"
+                aria-label="Fewer servers"
+                disabled={value <= min}
+                onClick={() => onChange(clamp(value - 1))}
+                className="h-9 w-9 bg-panel-2 text-lg leading-none text-ink hover:bg-accent-wash hover:text-accent disabled:opacity-35"
+            >
+                −
+            </button>
+            <input
+                value={value}
+                inputMode="numeric"
+                aria-label="Server count"
+                onChange={(e) => onChange(clamp(parseInt(e.target.value) || min))}
+                className="h-9 w-14 border-x border-rule bg-panel text-center text-[0.9rem] font-bold tabular-nums text-ink"
+            />
+            <button
+                type="button"
+                aria-label="More servers"
+                disabled={value >= max}
+                onClick={() => onChange(clamp(value + 1))}
+                className="h-9 w-9 bg-panel-2 text-lg leading-none text-ink hover:bg-accent-wash hover:text-accent disabled:opacity-35"
+            >
+                +
+            </button>
+        </div>
+    );
+}
+
+function Toggle({ checked, onChange }: { checked: boolean; onChange: (v: boolean) => void }) {
+    return (
+        <button
+            type="button"
+            role="switch"
+            aria-checked={checked}
+            onClick={() => onChange(!checked)}
+            className={`relative h-6 w-[42px] flex-none rounded-full transition-colors ${checked ? "bg-accent" : "bg-rule"}`}
+        >
+            <span className={`absolute top-[3px] h-[18px] w-[18px] rounded-full bg-white shadow transition-[left] ${checked ? "left-[21px]" : "left-[3px]"}`} />
+        </button>
+    );
+}
+
+function Receipt({
+    options,
+    dep,
+    choice,
+    plan,
+    items,
+    price,
+}: {
+    options: CheckoutOptions;
+    dep: Deployment;
+    choice: Choice;
+    plan: Plan | undefined;
+    items: { priceId: string; quantity: number }[];
+    price: PricePreview | null;
+}) {
+    if (choice.tier === "free") {
+        return (
+            <div className="px-4">
+                <div className="flex items-center justify-between gap-3 py-3 text-[0.85rem]">
+                    <span className="text-ink-2">
+                        {plan?.name ?? "Free"} plan
+                        <small className="block text-[0.72rem] text-ink-3">{plan?.base_limits.max_servers ?? 1} server · community support</small>
+                    </span>
+                    <span className="font-mono font-semibold tabular-nums text-valid">£0</span>
+                </div>
+            </div>
+        );
+    }
+
+    // Label each real line item from the catalogue, and price it from Paddle.
+    const base = plan?.base_limits.max_servers ?? 0;
+    const extra = base === -1 ? 0 : Math.max(0, choice.servers - base);
+    const rows = options.catalogue.filter((r) => r.deployment === dep && r.tier === choice.tier);
+    const idFor = (predicate: (r: CatalogueRow) => boolean) => {
+        const row = rows.find(predicate);
+        return row?.price_ids?.[options.env]?.[choice.term] ?? "";
+    };
+    const amount = (priceId: string) => price?.lines[priceId]?.total ?? null;
+
+    const lines: { label: string; sub?: string; value: string | null }[] = [];
+    const baseId = idFor((r) => r.kind === "base");
+    lines.push({
+        label: `${plan?.name ?? ""} base`,
+        sub: base === -1 ? "unlimited servers" : `${base} servers included`,
+        value: amount(baseId),
+    });
+    if (extra > 0) {
+        lines.push({
+            label: "Extra servers",
+            sub: `${extra} × per server`,
+            value: amount(idFor((r) => r.kind === "limit" && r.limit_key === "max_servers")),
+        });
+    }
+    for (const key of choice.features) {
+        const id = idFor((r) => r.kind === "feature" && r.feature_key === key);
+        if (id) lines.push({ label: featureLabel(key), sub: "add-on", value: amount(id) });
+    }
+
+    const priced = price !== null;
+    return (
+        <div className="px-4">
+            <div className="grid">
+                {lines.map((l, i) => (
+                    <div key={i} className="flex justify-between gap-3 border-b border-dashed border-rule-soft py-2.5 text-[0.85rem] last:border-0">
+                        <span className="text-ink-2">
+                            {l.label}
+                            {l.sub && <small className="block text-[0.72rem] text-ink-3">{l.sub}</small>}
+                        </span>
+                        <span className="font-mono font-semibold tabular-nums">{l.value ?? "—"}</span>
+                    </div>
+                ))}
+            </div>
+            <div className="mt-2 flex items-baseline justify-between border-t border-rule pt-3">
+                <span className="text-[0.85rem]">Total</span>
+                <span className="text-[1.4rem] font-extrabold tabular-nums">{priced && price?.total ? price.total : "—"}</span>
+            </div>
+            <p className="pb-3 pt-0.5 text-[0.72rem] text-ink-3">
+                {priced
+                    ? dep === "cloud"
+                        ? choice.term === "annual"
+                            ? "per year, billed annually"
+                            : "per month, billed monthly"
+                        : "per year, billed annually"
+                    : items.length > 0
+                      ? "Final price shown at checkout."
+                      : ""}
+            </p>
+        </div>
+    );
+}
+
+function Cta({ label, onClick, disabled, variant = "solid" }: { label: string; onClick: () => void; disabled?: boolean; variant?: "solid" | "line" }) {
+    return (
+        <button
+            type="button"
+            disabled={disabled}
+            onClick={onClick}
+            className={`rounded-[9px] px-3 py-3 text-[0.9rem] font-bold transition-[filter] hover:brightness-[1.06] disabled:opacity-40 disabled:hover:brightness-100 ${
+                variant === "solid" ? "bg-accent text-accent-ink" : "border border-accent bg-panel text-accent"
+            }`}
+        >
+            {label}
+        </button>
+    );
+}
+
+// ---------------------------------------------------------------------------
+// Icons
+// ---------------------------------------------------------------------------
+
+const cloudIcon = (
+    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+        <path d="M17.5 19a4.5 4.5 0 0 0 .5-9 6 6 0 0 0-11.6-1.5A4 4 0 0 0 6 19z" />
+    </svg>
+);
+const serverIcon = (
+    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+        <rect x="2" y="3" width="20" height="6" rx="1" />
+        <rect x="2" y="9" width="20" height="6" rx="1" />
+        <path d="M6 6h.01M6 12h.01" />
+    </svg>
+);
+const calendarIcon = (
+    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+        <rect x="3" y="4" width="18" height="18" rx="2" />
+        <path d="M3 10h18M8 2v4M16 2v4" />
+    </svg>
+);
+const annualIcon = (
+    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+        <path d="M12 2v20M17 5H9.5a3.5 3.5 0 0 0 0 7h5a3.5 3.5 0 0 1 0 7H6" />
+    </svg>
+);
+function LockIcon() {
+    return (
+        <svg className="mt-px flex-none" width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+            <rect x="3" y="11" width="18" height="11" rx="2" />
+            <path d="M7 11V7a5 5 0 0 1 10 0v4" />
+        </svg>
+    );
+}

adminsite/app/(customer)/purchase/page.tsx

@@ -0,0 +1,18 @@
+import type { Metadata } from "next";
+import { PurchaseForm } from "./PurchaseForm";
+import { PageHeader } from "@/components/PageHeader";
+
+export const metadata: Metadata = { title: "Buy a plan" };
+
+export default function PurchasePage() {
+    return (
+        <div className="grid gap-6">
+            <PageHeader
+                back={{ href: "/", label: "Overview" }}
+                title="Choose your plan"
+                subtitle="Configure the instance, see exactly what you'll be charged, then pay. Nothing is billed until you confirm at checkout."
+            />
+            <PurchaseForm />
+        </div>
+    );
+}

adminsite/app/(staff)/staff/accounts/[id]/page.tsx

@@ -25,9 +25,7 @@ export default function AccountDetailPage() {
                 record={[
                     { key: "Account", value: data.account.account_id, copy: true },
                     { key: "Status", value: data.account.status },
-                    ...(data.account.paddle_customer_id
-                        ? [{ key: "Paddle", value: data.account.paddle_customer_id, copy: true }]
-                        : []),
+                    ...(data.account.paddle_customer_id ? [{ key: "Paddle", value: data.account.paddle_customer_id, copy: true }] : []),
                 ]}
             />
 
@@ -35,10 +33,7 @@ export default function AccountDetailPage() {
                 <ul className="grid gap-2">
                     {data.instances.map((i) => (
                         <li key={i.instance_id} className="flex flex-wrap justify-between gap-2">
-                            <Link
-                                href={`/staff/instances/${i.instance_id}`}
-                                className="text-accent underline"
-                            >
+                            <Link href={`/staff/instances/${i.instance_id}`} className="text-accent underline">
                                 {i.name || i.instance_id}
                             </Link>
                             <span className="font-mono text-[0.82rem] text-ink-3">
@@ -71,19 +66,10 @@ export default function AccountDetailPage() {
                     {data.users.map((u) => (
                         <li key={u.user_id} className="flex flex-wrap justify-between gap-2">
                             <span className="font-mono text-[0.82rem]">{u.email}</span>
-                            <span className="font-mono text-[0.82rem] text-ink-3">
-                                {u.verified_at
-                                    ? `verified ${formatDate(u.verified_at)}`
-                                    : "not verified"}
-                            </span>
+                            <span className="font-mono text-[0.82rem] text-ink-3">{u.verified_at ? `verified ${formatDate(u.verified_at)}` : "not verified"}</span>
                         </li>
                     ))}
-                    {data.users.length === 0 && (
-                        <li className="text-ink-3">
-                            None — this is a cloud account, so its people sign in with their
-                            control-plane details.
-                        </li>
-                    )}
+                    {data.users.length === 0 && <li className="text-ink-3">None this is a cloud account, so its people sign in with their control-plane details.</li>}
                 </ul>
             </Panel>
 
@@ -94,9 +80,7 @@ export default function AccountDetailPage() {
                             <span>
                                 {e.action} · {e.actor}
                             </span>
-                            <span className="tabular-nums text-ink-3">
-                                {formatDate(e.created_at)}
-                            </span>
+                            <span className="tabular-nums text-ink-3">{formatDate(e.created_at)}</span>
                         </li>
                     ))}
                     {data.audit.length === 0 && <li className="text-ink-3">Nothing yet.</li>}

adminsite/app/(staff)/staff/catalogue/page.tsx

@@ -0,0 +1,184 @@
+"use client";
+
+import { useState } from "react";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { PageHeader } from "@/components/PageHeader";
+import { PageFrame } from "@/components/PageFrame";
+import { api, type CatalogueRow, type Term } from "@/lib/api";
+
+const ENVS = ["sandbox", "production"] as const;
+
+/* Self-hosted sells annual only, so the monthly cell is not rendered for it
+ * rather than rendered and rejected. The backend refuses one either way; this is
+ * so nobody types into a field that cannot be saved. */
+function termsFor(deployment: string): Term[] {
+    return deployment === "self_hosted" ? ["annual"] : ["monthly", "annual"];
+}
+
+function componentLabel(r: CatalogueRow): string {
+    if (r.kind === "base") return "Base fee";
+    if (r.kind === "limit") return `Per ${r.limit_key?.replace("max_", "")}`;
+    return `Feature: ${r.feature_key}`;
+}
+
+function rowKey(r: CatalogueRow): string {
+    return [r.deployment, r.tier, r.kind, r.limit_key ?? "", r.feature_key ?? ""].join("/");
+}
+
+export default function CataloguePage() {
+    const qc = useQueryClient();
+    const { data: rows = [], isLoading } = useQuery({
+        queryKey: ["staff", "catalogue"],
+        queryFn: api.staff.catalogue,
+    });
+    const [drafts, setDrafts] = useState<Record<string, CatalogueRow["price_ids"]>>({});
+
+    const save = useMutation({
+        mutationFn: (r: CatalogueRow) => api.staff.updateCatalogue(r),
+        onSuccess: () => qc.invalidateQueries({ queryKey: ["staff", "catalogue"] }),
+    });
+
+    const groups = Array.from(new Set(rows.map((r) => `${r.deployment}/${r.tier}`)));
+
+    return (
+        <div className="grid gap-6">
+            <PageHeader
+                title="Catalogue"
+                back={{ href: "/staff", label: "Operations" }}
+                subtitle="Every priceable component. This is the only place a Paddle price ID lives."
+            />
+            <PageFrame
+                aside={
+                    <aside className="space-y-3 text-[0.82rem] text-ink-2">
+                        <p>
+                            A component with no price ID is free. A feature with no price is a
+                            toggle a customer may take at no charge; giving it a price here is
+                            all it takes to start charging for it.
+                        </p>
+                        <p>
+                            Free is priced by nothing and has no rows. That absence is what
+                            keeps it outside Paddle.
+                        </p>
+                        <p>
+                            Changing a price affects the next checkout only. It cannot touch an
+                            issued licence.
+                        </p>
+                    </aside>
+                }
+            >
+                {isLoading ? (
+                    <p className="text-[0.85rem] text-ink-3">Loading…</p>
+                ) : (
+                    <div className="space-y-6">
+                        {groups.map((g) => {
+                            const [deployment, tier] = g.split("/");
+                            const terms = termsFor(deployment);
+                            return (
+                                <section key={g} className="space-y-2">
+                                    <h2 className="text-[0.95rem] font-medium text-ink">
+                                        {deployment === "cloud" ? "Cloud" : "Self-Hosted"}{" "}
+                                        {tier}
+                                    </h2>
+                                    <div className="overflow-x-auto">
+                                        <table className="w-full min-w-[42rem] border-collapse text-[0.82rem]">
+                                            <thead>
+                                                <tr className="border-b border-rule text-left text-ink-3">
+                                                    <th className="py-2 pr-3 font-normal">Component</th>
+                                                    {ENVS.map((env) =>
+                                                        terms.map((t) => (
+                                                            <th
+                                                                key={`${env}-${t}`}
+                                                                className="py-2 pr-3 font-normal"
+                                                            >
+                                                                {env} / {t}
+                                                            </th>
+                                                        )),
+                                                    )}
+                                                    <th className="py-2 font-normal" />
+                                                </tr>
+                                            </thead>
+                                            <tbody>
+                                                {rows
+                                                    .filter(
+                                                        (r) =>
+                                                            r.deployment === deployment &&
+                                                            r.tier === tier,
+                                                    )
+                                                    .map((r) => {
+                                                        const k = rowKey(r);
+                                                        const ids = drafts[k] ?? r.price_ids ?? {};
+                                                        const dirty =
+                                                            JSON.stringify(ids) !==
+                                                            JSON.stringify(r.price_ids ?? {});
+                                                        return (
+                                                            <tr
+                                                                key={k}
+                                                                className="border-b border-rule/60"
+                                                            >
+                                                                <td className="py-2 pr-3 text-ink">
+                                                                    {componentLabel(r)}
+                                                                </td>
+                                                                {ENVS.map((env) =>
+                                                                    terms.map((t) => (
+                                                                        <td
+                                                                            key={`${env}-${t}`}
+                                                                            className="py-2 pr-3"
+                                                                        >
+                                                                            <input
+                                                                                value={
+                                                                                    ids[env]?.[t] ?? ""
+                                                                                }
+                                                                                placeholder="pri_…"
+                                                                                onChange={(e) =>
+                                                                                    setDrafts({
+                                                                                        ...drafts,
+                                                                                        [k]: {
+                                                                                            ...ids,
+                                                                                            [env]: {
+                                                                                                ...(ids[
+                                                                                                    env
+                                                                                                ] ?? {}),
+                                                                                                [t]: e
+                                                                                                    .target
+                                                                                                    .value,
+                                                                                            },
+                                                                                        },
+                                                                                    })
+                                                                                }
+                                                                                className="w-40 rounded border border-rule bg-panel px-2 py-1 font-mono text-[0.78rem] text-ink"
+                                                                            />
+                                                                        </td>
+                                                                    )),
+                                                                )}
+                                                                <td className="py-2">
+                                                                    <button
+                                                                        type="button"
+                                                                        disabled={
+                                                                            !dirty || save.isPending
+                                                                        }
+                                                                        onClick={() =>
+                                                                            save.mutate({
+                                                                                ...r,
+                                                                                price_ids: ids,
+                                                                            })
+                                                                        }
+                                                                        className="rounded border border-accent/50 px-2.5 py-1 text-[0.78rem] text-accent disabled:opacity-40"
+                                                                    >
+                                                                        Save
+                                                                    </button>
+                                                                </td>
+                                                            </tr>
+                                                        );
+                                                    })}
+                                            </tbody>
+                                        </table>
+                                    </div>
+                                </section>
+                            );
+                        })}
+                    </div>
+                )}
+            </PageFrame>
+        </div>
+    );
+}

adminsite/app/(staff)/staff/instances/[id]/IssuePanel.tsx

@@ -6,15 +6,9 @@ import { ApiError, api, type Tier } from "@/lib/api";
 import { Button } from "@/components/Button";
 import { Field } from "@/components/Field";
 
-export function IssuePanel({
-    instanceId,
-    deployment,
-}: {
-    instanceId: string;
-    deployment: string;
-}) {
+export function IssuePanel({ instanceId }: { instanceId: string }) {
     const qc = useQueryClient();
-    const [tier, setTier] = useState<Tier>(deployment === "cloud" ? "professional" : "self_hosted");
+    const [tier, setTier] = useState<Tier>("professional");
     const [term, setTerm] = useState("annual");
     const [newId, setNewId] = useState("");
     const [error, setError] = useState<string | undefined>();
@@ -37,28 +31,16 @@ export function IssuePanel({
         <section className="grid gap-4 border-t border-rule-soft pt-5">
             <div className="flex flex-wrap items-end gap-3">
                 <label className="grid gap-1.5">
-                    <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">
-                        Tier
-                    </span>
-                    <select
-                        value={tier}
-                        onChange={(e) => setTier(e.target.value as Tier)}
-                        className="rounded border border-rule bg-panel-2 px-2.5 py-2"
-                    >
+                    <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">Tier</span>
+                    <select value={tier} onChange={(e) => setTier(e.target.value as Tier)} className="rounded border border-rule bg-panel-2 px-2.5 py-2">
                         <option value="free">Free</option>
                         <option value="professional">Professional</option>
-                        <option value="self_hosted">Self Hosted</option>
+                        <option value="enterprise">Enterprise</option>
                     </select>
                 </label>
                 <label className="grid gap-1.5">
-                    <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">
-                        Term
-                    </span>
-                    <select
-                        value={term}
-                        onChange={(e) => setTerm(e.target.value)}
-                        className="rounded border border-rule bg-panel-2 px-2.5 py-2"
-                    >
+                    <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">Term</span>
+                    <select value={term} onChange={(e) => setTerm(e.target.value)} className="rounded border border-rule bg-panel-2 px-2.5 py-2">
                         <option value="annual">Annual</option>
                         <option value="monthly">Monthly</option>
                     </select>
@@ -69,18 +51,8 @@ export function IssuePanel({
             </div>
 
             <div className="flex flex-wrap items-end gap-3">
-                <Field
-                    label="Relink to instance ID"
-                    value={newId}
-                    onChange={(e) => setNewId(e.target.value)}
-                    hint="Staff relinks are not capped — the customer cap exists to put you in the loop."
-                />
-                <Button
-                    type="button"
-                    variant="line"
-                    onClick={() => relink.mutate()}
-                    disabled={!newId.trim()}
-                >
+                <Field label="Relink to instance ID" value={newId} onChange={(e) => setNewId(e.target.value)} hint="Staff relinks are not capped the customer cap exists to put you in the loop." />
+                <Button type="button" variant="line" onClick={() => relink.mutate()} disabled={!newId.trim()}>
                     Relink
                 </Button>
             </div>

adminsite/app/(staff)/staff/instances/[id]/page.tsx

@@ -1,18 +1,20 @@
 "use client";
 
-import { useQuery } from "@tanstack/react-query";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { useParams } from "next/navigation";
+import { useState } from "react";
 import Link from "next/link";
 import clsx from "clsx";
-import { api, type InjectionState } from "@/lib/api";
+import { api, type Deployment, type InjectionState } from "@/lib/api";
 import { Ledger } from "@/components/Ledger";
 import { PageHeader } from "@/components/PageHeader";
+import PlanConfigurator, { type PlanChoice } from "@/components/PlanConfigurator";
 import { IssuePanel } from "./IssuePanel";
 
 const INJECTION: Record<InjectionState, { label: string; tone: string }> = {
     current: { label: "Control plane holds the current licence", tone: "text-valid" },
     stale: {
-        label: "Control plane holds an older blob — the reconciler will repair it",
+        label: "Control plane holds an older blob the reconciler will repair it",
         tone: "text-warn",
     },
     missing: { label: "No matching instance in the control plane", tone: "text-expired" },
@@ -42,40 +44,102 @@ export default function StaffInstancePage() {
                     title={data.instance.name || data.instance.instance_id}
                     subtitle={
                         <>
-                            <Link
-                                href={`/staff/accounts/${data.account.account_id}`}
-                                className="text-accent underline"
-                            >
+                            <Link href={`/staff/accounts/${data.account.account_id}`} className="text-accent underline">
                                 {data.account.name || data.account.account_id}
                             </Link>
                             <span className="text-ink-3">
                                 {" "}
                                 · {data.instance.deployment} · {data.instance.status}
-                                {data.instance.relink_count > 0 &&
-                                    ` · ${data.instance.relink_count} relinks this term`}
+                                {data.instance.relink_count > 0 && ` · ${data.instance.relink_count} relinks this term`}
                             </span>
                         </>
                     }
-                    record={[
-                        { key: "Instance", value: data.instance.instance_id, copy: true },
-                        ...(data.instance.slug
-                            ? [{ key: "Slug", value: data.instance.slug }]
-                            : []),
-                    ]}
+                    record={[{ key: "Instance", value: data.instance.instance_id, copy: true }, ...(data.instance.slug ? [{ key: "Slug", value: data.instance.slug }] : [])]}
                 />
-                {data.injection.applicable && inj && (
-                    <p className={clsx("font-mono text-[0.72rem]", inj.tone)}>{inj.label}</p>
-                )}
+                {data.injection.applicable && inj && <p className={clsx("font-mono text-[0.72rem]", inj.tone)}>{inj.label}</p>}
             </div>
 
             <section className="grid gap-3 rounded border border-rule bg-panel p-5">
                 <h2 className="text-xl">Licence history</h2>
                 <Ledger licenses={data.licenses} />
-                <IssuePanel
-                    instanceId={data.instance.instance_id}
-                    deployment={data.instance.deployment}
-                />
+                <IssuePanel instanceId={data.instance.instance_id} />
             </section>
+
+            <EntitlementSection instanceId={data.instance.instance_id} deployment={data.instance.deployment} />
         </div>
     );
 }
+
+function EntitlementSection({ instanceId, deployment }: { instanceId: string; deployment: Deployment }) {
+    const qc = useQueryClient();
+    const { data: plans = [] } = useQuery({
+        queryKey: ["staff", "plans"],
+        queryFn: api.staff.plans,
+    });
+    const { data: catalogue = [] } = useQuery({
+        queryKey: ["staff", "catalogue"],
+        queryFn: api.staff.catalogue,
+    });
+    const { data } = useQuery({
+        queryKey: ["staff", "entitlement", instanceId],
+        queryFn: () => api.staff.entitlement(instanceId),
+        retry: false,
+    });
+
+    const ent = data?.entitlement;
+    const [draft, setDraft] = useState<PlanChoice | null>(null);
+    const choice: PlanChoice =
+        draft ??
+        (ent
+            ? {
+                  tier: ent.tier,
+                  term: ent.term,
+                  servers: ent.desired.servers,
+                  features: ent.desired.features ?? [],
+              }
+            : { tier: "professional", term: deployment === "self_hosted" ? "annual" : "monthly", servers: 3, features: [] });
+
+    const save = useMutation({
+        mutationFn: (grant: boolean) => api.staff.setEntitlement(instanceId, { ...choice, grant }),
+        onSuccess: () => {
+            setDraft(null);
+            qc.invalidateQueries({ queryKey: ["staff", "entitlement", instanceId] });
+        },
+    });
+
+    return (
+        <section className="rounded-lg border border-rule bg-panel p-4">
+            <header className="mb-3">
+                <h2 className="text-[0.95rem] font-medium text-ink">Entitlement</h2>
+                <p className="text-[0.78rem] text-ink-3">
+                    What this instance is allowed. A licence is signed from <em>granted</em>, never from <em>desired</em>.
+                </p>
+            </header>
+
+            {ent && data?.pending && (
+                <p className="mb-3 rounded border border-warn/50 bg-panel-2 px-2.5 py-2 text-[0.82rem] text-ink-2">
+                    Pending change currently granted {ent.granted.servers} servers, configured for {ent.desired.servers}
+                    {ent.scheduled_change_at ? `, effective ${new Date(ent.scheduled_change_at).toLocaleDateString("en-GB", { day: "numeric", month: "long", year: "numeric" })}` : ""}.
+                </p>
+            )}
+
+            <PlanConfigurator deployment={deployment} value={choice} plans={plans} catalogue={catalogue} onChange={setDraft} disabled={save.isPending} />
+
+            <div className="mt-4 flex flex-wrap gap-2">
+                <button type="button" disabled={save.isPending} onClick={() => save.mutate(false)} className="rounded border border-rule px-3 py-1.5 text-[0.85rem] text-ink-2 disabled:opacity-40">
+                    Save as configured
+                </button>
+                <button
+                    type="button"
+                    disabled={save.isPending}
+                    onClick={() => save.mutate(true)}
+                    className="rounded border border-accent/50 px-3 py-1.5 text-[0.85rem] text-accent disabled:opacity-40"
+                >
+                    Save and grant
+                </button>
+            </div>
+            <p className="mt-2 text-[0.72rem] text-ink-3">Granting takes effect on the next licence issued. It does not issue one.</p>
+            {save.error && <p className="mt-2 text-[0.82rem] text-expired">{String((save.error as Error).message)}</p>}
+        </section>
+    );
+}

adminsite/app/(staff)/staff/layout.tsx

@@ -8,6 +8,7 @@ const LINKS: NavLink[] = [
     { href: "/staff/accounts", label: "Accounts" },
     { href: "/staff/licenses", label: "Licences" },
     { href: "/staff/plans", label: "Plans" },
+    { href: "/staff/catalogue", label: "Catalogue" },
     { href: "/staff/audit", label: "Audit" },
 ];
 

adminsite/app/(staff)/staff/licenses/page.tsx

@@ -35,7 +35,8 @@ export default function LicensesPage() {
                     <option value="">All tiers</option>
                     <option value="free">Free</option>
                     <option value="professional">Professional</option>
-                    <option value="self_hosted">Self Hosted</option>
+                    <option value="enterprise">Enterprise</option>
+                    <option value="self_hosted">Self-Hosted (legacy)</option>
                 </select>
                 <select
                     value={reason}

adminsite/app/(staff)/staff/page.tsx

@@ -35,9 +35,7 @@ export default function StaffDashboard() {
 
     if (injection.error instanceof NotConnected) return <NotConnectedPanel url={API_BASE} />;
 
-    const stale = (unlinked.data ?? []).filter(
-        (i) => Date.now() - new Date(i.created_at).getTime() > HOURS_48,
-    );
+    const stale = (unlinked.data ?? []).filter((i) => Date.now() - new Date(i.created_at).getTime() > HOURS_48);
 
     const failed = injection.data?.count ?? 0;
     const instances = allInstances.data ?? [];
@@ -46,11 +44,7 @@ export default function StaffDashboard() {
         <div className="grid gap-6">
             <PageHeader
                 title="Operations"
-                subtitle={
-                    failed > 0
-                        ? "Injection failures come first — those instances are paying for a licence they have not received."
-                        : "Nothing failing. Queues below are routine chasing."
-                }
+                subtitle={failed > 0 ? "Injection failures come first those instances are paying for a licence they have not received." : "Nothing failing. Queues below are routine chasing."}
                 actions={
                     <LinkButton variant="line" href="/staff/accounts">
                         Find an account
@@ -68,9 +62,7 @@ export default function StaffDashboard() {
                     items={(injection.data?.failed ?? []).slice(0, 4).map((i) => ({
                         label: i.name || i.instance_id,
                         href: `/staff/instances/${i.instance_id}`,
-                        meta: i.inject_failed_at
-                            ? new Date(i.inject_failed_at).toISOString().slice(11, 16)
-                            : "",
+                        meta: i.inject_failed_at ? new Date(i.inject_failed_at).toISOString().slice(11, 16) : "",
                     }))}
                 />
                 <Queue
@@ -117,8 +109,7 @@ export default function StaffDashboard() {
                                 },
                                 {
                                     label: "Self-hosted",
-                                    value: instances.filter((i) => i.deployment === "self_hosted")
-                                        .length,
+                                    value: instances.filter((i) => i.deployment === "self_hosted").length,
                                 },
                                 {
                                     label: "Awaiting link",
@@ -126,10 +117,7 @@ export default function StaffDashboard() {
                                 },
                             ]}
                         />
-                        <Link
-                            href="/staff/licenses"
-                            className="text-[0.82rem] font-semibold text-accent underline"
-                        >
+                        <Link href="/staff/licenses" className="text-[0.82rem] font-semibold text-accent underline">
                             All licences
                         </Link>
                     </RailCard>
@@ -139,14 +127,9 @@ export default function StaffDashboard() {
                     <header className="flex flex-wrap items-center justify-between gap-3 border-b border-rule-soft bg-panel-2 px-4 py-3">
                         <div>
                             <h2 className="text-[0.95rem]">Recent activity</h2>
-                            <p className="text-[0.8rem] text-ink-2">
-                                Every licence issued, relinked or reaped, newest first.
-                            </p>
+                            <p className="text-[0.8rem] text-ink-2">Every licence issued, relinked or reaped, newest first.</p>
                         </div>
-                        <Link
-                            href="/staff/audit"
-                            className="text-[0.82rem] font-semibold text-accent underline"
-                        >
+                        <Link href="/staff/audit" className="text-[0.82rem] font-semibold text-accent underline">
                             Full audit
                         </Link>
                     </header>
@@ -163,9 +146,7 @@ export default function StaffDashboard() {
                             <tbody>
                                 {(audit.data ?? []).slice(0, 12).map((e, n) => (
                                     <tr key={n} className="border-b border-rule-soft last:border-0">
-                                        <td className="px-4 py-2.5 font-mono tabular-nums text-ink-2">
-                                            {new Date(e.created_at).toISOString().slice(11, 16)}
-                                        </td>
+                                        <td className="px-4 py-2.5 font-mono tabular-nums text-ink-2">{new Date(e.created_at).toISOString().slice(11, 16)}</td>
                                         <td className="px-4 py-2.5">{e.action}</td>
                                         <td className="px-4 py-2.5 text-ink-2">{e.target ?? "—"}</td>
                                         <td className="px-4 py-2.5 text-ink-3">{e.actor}</td>

adminsite/app/(staff)/staff/plans/page.tsx

@@ -2,12 +2,87 @@
 
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { useState } from "react";
-import { api, type Plan } from "@/lib/api";
-import { Button } from "@/components/Button";
+import { api, type Deployment, type Plan, type Tier } from "@/lib/api";
 import { ConfirmPlanChange } from "@/components/ConfirmPlanChange";
-import { limitLabel } from "@/lib/format";
 import { PageHeader } from "@/components/PageHeader";
 
+const SUPPORT_LEVELS = [
+    { value: "community", label: "Community" },
+    { value: "email_24_5", label: "Email, 24/5" },
+    { value: "email_call_24_7", label: "Email + call, 24/7" },
+] as const;
+
+const LIMIT_FIELDS = [
+    { key: "max_servers", label: "Servers" },
+    { key: "max_monitors", label: "Monitors" },
+    { key: "max_secret_groups", label: "Secret groups" },
+    { key: "max_channels", label: "Channels" },
+    { key: "audit_retention_days", label: "Audit history (days)" },
+] as const;
+
+/*
+ * -1 is Unlimited everywhere in the licence payload, so the form takes it
+ * literally rather than inventing a checkbox. A staff screen that hides the
+ * sentinel is a staff screen where nobody can tell whether a plan says
+ * unlimited or nothing at all.
+ */
+function AllowanceForm({ plan, onSave, saving }: { plan: Plan; onSave: (next: Plan) => void; saving: boolean }) {
+    const [draft, setDraft] = useState<Plan>(plan);
+    const dirty = JSON.stringify(draft) !== JSON.stringify(plan);
+
+    return (
+        <div className="space-y-3">
+            <div className="grid gap-2 sm:grid-cols-2 lg:grid-cols-3">
+                {LIMIT_FIELDS.map((f) => (
+                    <label key={f.key} className="block">
+                        <span className="mb-1 block text-[0.78rem] text-ink-3">{f.label}</span>
+                        <input
+                            type="number"
+                            value={draft.base_limits[f.key]}
+                            onChange={(e) =>
+                                setDraft({
+                                    ...draft,
+                                    base_limits: {
+                                        ...draft.base_limits,
+                                        [f.key]: Number(e.target.value),
+                                    },
+                                })
+                            }
+                            className="w-full rounded border border-rule bg-panel px-2 py-1.5 text-[0.85rem] text-ink"
+                        />
+                        <span className="mt-0.5 block text-[0.72rem] text-ink-3">−1 is unlimited</span>
+                    </label>
+                ))}
+                <label className="block">
+                    <span className="mb-1 block text-[0.78rem] text-ink-3">Support level</span>
+                    <select
+                        value={draft.support_level}
+                        onChange={(e) => setDraft({ ...draft, support_level: e.target.value })}
+                        className="w-full rounded border border-rule bg-panel px-2 py-1.5 text-[0.85rem] text-ink"
+                    >
+                        {SUPPORT_LEVELS.map((s) => (
+                            <option key={s.value} value={s.value}>
+                                {s.label}
+                            </option>
+                        ))}
+                    </select>
+                </label>
+            </div>
+
+            <label className="flex items-center gap-2 text-[0.85rem] text-ink-2">
+                <input type="checkbox" checked={draft.active} onChange={(e) => setDraft({ ...draft, active: e.target.checked })} />
+                Offered to customers
+            </label>
+
+            <p className="text-[0.78rem] text-ink-3">Changes apply to licences issued from now on. Existing licences snapshotted their plan and are unaffected.</p>
+
+            <button type="button" disabled={!dirty || saving} onClick={() => onSave(draft)} className="rounded border border-accent/50 px-3 py-1.5 text-[0.85rem] text-accent disabled:opacity-40">
+                {saving ? "Saving…" : "Save allowances"}
+            </button>
+        </div>
+    );
+}
+
 export default function PlansPage() {
     const qc = useQueryClient();
     const plans = useQuery({ queryKey: ["plans"], queryFn: api.staff.plans });
@@ -16,116 +91,58 @@ export default function PlansPage() {
         queryFn: () => api.staff.licenses(),
     });
     const [draft, setDraft] = useState<Plan | null>(null);
+    const [saving, setSaving] = useState<string | null>(null);
 
     const save = useMutation({
-        mutationFn: (p: Plan) =>
-            api.staff.updatePlan(p.tier, {
-                name: p.name,
-                limits: p.limits,
-                features: p.features,
-                paddle_product_id: p.paddle_product_id,
-                paddle_price_ids: p.paddle_price_ids,
-                active: p.active,
-            }),
+        mutationFn: (p: Plan) => api.staff.updatePlan(p.deployment, p.tier, p),
         onSuccess: () => {
             qc.invalidateQueries({ queryKey: ["plans"] });
             setDraft(null);
+            setSaving(null);
         },
+        onError: () => setSaving(null),
     });
 
-    const original = plans.data?.find((p) => p.tier === draft?.tier);
+    const original = plans.data?.find((p) => p.deployment === draft?.deployment && p.tier === draft?.tier);
 
     return (
         <div className="grid gap-6">
             <PageHeader
                 title="Plans"
-                subtitle="The authoritative tier table. Every issued licence snapshots the plan it was cut from, so editing one never rewrites an existing licence."
+                subtitle="The authoritative tier table six plans, two deployments by three tiers, base allowances only. Every issued licence snapshots the plan it was cut from, so editing one never rewrites an existing licence."
             />
 
             {draft && original && (
                 <ConfirmPlanChange
                     plan={original}
                     next={draft}
-                    issuedCount={
-                        (licenses.data ?? []).filter(
-                            (l) => l.tier === draft.tier,
-                        ).length
-                    }
-                    onConfirm={() => save.mutate(draft)}
+                    issuedCount={(licenses.data ?? []).filter((l) => l.tier === draft.tier && l.deployment === draft.deployment).length}
+                    onConfirm={() => {
+                        setSaving(`${draft.deployment}/${draft.tier}`);
+                        save.mutate(draft);
+                    }}
                     onCancel={() => setDraft(null)}
                 />
             )}
 
-            <div className="grid gap-4 lg:grid-cols-3">
-                {(plans.data ?? []).map((p) => (
-                    <section
-                        key={p.tier}
-                        className="grid gap-3 rounded border border-rule bg-panel p-5"
-                    >
-                        <h2 className="text-xl">{p.name}</h2>
-                        <dl className="grid gap-1 font-mono text-[0.82rem] tabular-nums text-ink-2">
-                            <div className="flex justify-between gap-2">
-                                <dt>servers</dt>
-                                <dd>{limitLabel(p.limits.max_servers)}</dd>
-                            </div>
-                            <div className="flex justify-between gap-2">
-                                <dt>secret groups</dt>
-                                <dd>
-                                    {limitLabel(p.limits.max_secret_groups)}
-                                </dd>
-                            </div>
-                            <div className="flex justify-between gap-2">
-                                <dt>channels</dt>
-                                <dd>{limitLabel(p.limits.max_channels)}</dd>
-                            </div>
-                            <div className="flex justify-between gap-2">
-                                <dt>features</dt>
-                                <dd>{p.features?.join(", ") || "none"}</dd>
-                            </div>
-                        </dl>
-
-                        {/* Guard rail two: deployment is shown, never edited. */}
-                        <p className="flex items-center gap-2 rounded border border-rule bg-panel-2 px-2.5 py-2 text-[0.82rem] text-ink-3">
-                            <span aria-hidden="true">🔒</span>
-                            <span>
-                                Deployment is fixed at{" "}
-                                <b className="font-mono">{p.deployment}</b>.
-                                Moving a tier between cloud and self-hosted is a
-                                code change, not a form field.
-                            </span>
-                        </p>
-
-                        <div className="flex flex-wrap gap-2">
-                            <Button
-                                type="button"
-                                variant="line"
-                                onClick={() =>
-                                    setDraft({
-                                        ...p,
-                                        limits: { ...p.limits, max_servers: 7 },
-                                    })
-                                }
-                            >
-                                Cap servers at 7
-                            </Button>
-                            <Button
-                                type="button"
-                                variant="line"
-                                onClick={() =>
-                                    setDraft({
-                                        ...p,
-                                        features: p.features.filter(
-                                            (f) => f !== "oidc",
-                                        ),
-                                    })
-                                }
-                            >
-                                Remove OIDC
-                            </Button>
-                        </div>
-                    </section>
-                ))}
-            </div>
+            {(["cloud", "self_hosted"] as const).map((deployment: Deployment) => (
+                <section key={deployment} className="space-y-3">
+                    <h2 className="text-[0.95rem] font-medium text-ink">{deployment === "cloud" ? "Cloud" : "Self-Hosted"}</h2>
+                    {(plans.data ?? [])
+                        .filter((p) => p.deployment === deployment)
+                        .map((p) => (
+                            <article key={`${p.deployment}/${p.tier}`} className="rounded-lg border border-rule bg-panel p-4">
+                                <header className="mb-3 flex items-baseline justify-between gap-3">
+                                    <h3 className="text-[0.9rem] font-medium text-ink">{p.name}</h3>
+                                    <span className="font-mono text-[0.75rem] text-ink-3">
+                                        {p.deployment}/{p.tier}
+                                    </span>
+                                </header>
+                                <AllowanceForm plan={p} saving={saving === `${p.deployment}/${p.tier}`} onSave={(next: Plan) => setDraft(next)} />
+                            </article>
+                        ))}
+                </section>
+            ))}
         </div>
     );
 }

adminsite/app/layout.tsx

@@ -10,7 +10,7 @@ export const metadata: Metadata = {
 
 /*
  * The masthead deliberately does NOT live here. It belongs to the authenticated
- * layouts, so /login, /signup, /verify and /accept-invite stop rendering a bar
+ * layouts, so /login, /verify and /accept-invite stop rendering a bar
  * whose navigation and account menu they cannot use.
  */
 export default function RootLayout({ children }: { children: React.ReactNode }) {

adminsite/app/login/page.tsx

@@ -2,12 +2,13 @@
 
 import { useRouter } from "next/navigation";
 import { useState } from "react";
-import Link from "next/link";
 import { API_BASE, ApiError, NotConnected, api } from "@/lib/api";
 import { NotConnectedPanel } from "@/components/NotConnected";
 import { Button } from "@/components/Button";
 import { Field } from "@/components/Field";
 
+const SITE_URL = (process.env.NEXT_PUBLIC_SITE_URL ?? "").replace(/\/$/, "");
+
 export default function LoginPage() {
     const router = useRouter();
     const [email, setEmail] = useState("");
@@ -44,46 +45,75 @@ export default function LoginPage() {
 
     return (
         <Main>
-            <h1 className="text-3xl">Sign in</h1>
-            <form onSubmit={submit} className="mt-6 grid gap-4">
-                <Field
-                    label="Email"
-                    type="email"
-                    autoComplete="username"
-                    required
-                    value={email}
-                    onChange={(e) => setEmail(e.target.value)}
-                />
-                <Field
-                    label="Password"
-                    type="password"
-                    autoComplete="current-password"
-                    required
-                    value={password}
-                    onChange={(e) => setPassword(e.target.value)}
-                    error={error ?? undefined}
-                />
-                <label className="flex items-center gap-2 text-[0.82rem] text-ink-2">
-                    <input
-                        type="checkbox"
-                        checked={staff}
-                        onChange={(e) => setStaff(e.target.checked)}
+            {/* The masthead's lockup, unlinked: there is nowhere to go yet. */}
+            <div className="mb-7 flex flex-col items-center gap-2 text-center">
+                <span className="flex items-baseline gap-2 text-[1.5rem] font-extrabold tracking-[-0.02em]">
+                    Vantage
+                    <span className="font-mono text-[0.78rem] font-normal uppercase tracking-[0.14em] text-ink-3">
+                        HQ
+                    </span>
+                </span>
+                <h1 className="text-[1.16rem]">Sign in</h1>
+                <p className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">
+                    Licences · instances · billing
+                </p>
+            </div>
+
+            <div className="rounded border border-rule bg-panel p-6 shadow-[var(--shadow)]">
+                <form onSubmit={submit} className="grid gap-4">
+                    <Field
+                        label="Email"
+                        type="email"
+                        autoComplete="username"
+                        required
+                        value={email}
+                        onChange={(e) => setEmail(e.target.value)}
                     />
-                    I work at Vantage
-                </label>
-                <div className="flex flex-wrap items-center gap-3">
-                    <Button type="submit" disabled={busy}>
+                    <Field
+                        label="Password"
+                        type="password"
+                        autoComplete="current-password"
+                        required
+                        value={password}
+                        onChange={(e) => setPassword(e.target.value)}
+                        error={error ?? undefined}
+                    />
+                    <label className="flex items-center gap-2 text-[0.82rem] text-ink-2">
+                        <input
+                            type="checkbox"
+                            checked={staff}
+                            onChange={(e) => setStaff(e.target.checked)}
+                            className="accent-[var(--accent)]"
+                        />
+                        I work at Vantage
+                    </label>
+                    <Button type="submit" disabled={busy} className="w-full justify-center">
                         {busy ? "Signing in…" : "Sign in"}
                     </Button>
-                    <Link href="/signup" className="text-[0.82rem] text-accent underline">
-                        Create an account for a self-hosted licence
-                    </Link>
-                </div>
-            </form>
+                </form>
+
+                {SITE_URL && (
+                    <>
+                        <div className="my-5 h-px bg-rule-soft" />
+
+                        {/* Signup lives on the marketing site's /start, not here. */}
+                        <p className="text-center text-[0.82rem] text-ink-3">
+                            No account?{" "}
+                            <a href={`${SITE_URL}/start`} className="text-accent underline">
+                                Create one
+                            </a>
+                        </p>
+                    </>
+                )}
+            </div>
         </Main>
     );
 }
 
 function Main({ children }: { children: React.ReactNode }) {
-    return <main className="mx-auto max-w-rail px-5 py-12">{children}</main>;
+    return (
+        <main className="mx-auto flex min-h-screen w-full max-w-[26rem] flex-col justify-center px-5 py-12">
+            {children}
+        </main>
+    );
 }

adminsite/app/signup/page.tsx

@@ -1,92 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { ApiError, NotConnected, api } from "@/lib/api";
-import { Button } from "@/components/Button";
-import { Field } from "@/components/Field";
-
-export default function SignupPage() {
-    const [form, setForm] = useState({ name: "", email: "", password: "", website: "" });
-    const [state, setState] = useState<"idle" | "busy" | "sent">("idle");
-    const [error, setError] = useState<string | null>(null);
-
-    async function submit(e: React.FormEvent) {
-        e.preventDefault();
-        setState("busy");
-        setError(null);
-        try {
-            await api.signup(form);
-            setState("sent");
-        } catch (err) {
-            setState("idle");
-            setError(
-                err instanceof NotConnected
-                    ? "The licensing service is not reachable from this page."
-                    : err instanceof ApiError
-                      ? err.message
-                      : "Could not create the account. Try again.",
-            );
-        }
-    }
-
-    return (
-        <main className="mx-auto max-w-rail px-5 py-12">
-            {state === "sent" ? (
-                <div className="grid max-w-xl gap-3">
-                    <h1 className="text-3xl">Check your email</h1>
-                    <p className="text-ink-2">
-                        We sent a link to {form.email}. Open it to finish setting up your account —
-                        it expires in 24 hours. Nothing is created until you do.
-                    </p>
-                </div>
-            ) : (
-                <>
-                    <h1 className="text-3xl">Create an account</h1>
-                    <p className="mt-2 max-w-xl text-ink-2">
-                        For self-hosted licences. If you run on our cloud, sign in with the same
-                        details you use for your Vantage instance.
-                    </p>
-                    <form onSubmit={submit} className="mt-6 grid gap-4">
-                        <Field
-                            label="Organisation"
-                            required
-                            value={form.name}
-                            onChange={(e) => setForm({ ...form, name: e.target.value })}
-                        />
-                        <Field
-                            label="Email"
-                            type="email"
-                            required
-                            value={form.email}
-                            onChange={(e) => setForm({ ...form, email: e.target.value })}
-                        />
-                        <Field
-                            label="Password"
-                            type="password"
-                            required
-                            minLength={12}
-                            hint="At least 12 characters."
-                            value={form.password}
-                            onChange={(e) => setForm({ ...form, password: e.target.value })}
-                            error={error ?? undefined}
-                        />
-                        {/* Honeypot: off-screen, unlabelled for humans, irresistible to bots. */}
-                        <input
-                            type="text"
-                            name="website"
-                            tabIndex={-1}
-                            autoComplete="off"
-                            aria-hidden="true"
-                            value={form.website}
-                            onChange={(e) => setForm({ ...form, website: e.target.value })}
-                            className="absolute left-[-9999px] h-0 w-0"
-                        />
-                        <Button type="submit" disabled={state === "busy"}>
-                            {state === "busy" ? "Creating…" : "Create account"}
-                        </Button>
-                    </form>
-                </>
-            )}
-        </main>
-    );
-}

adminsite/components/AppBar.tsx

@@ -12,7 +12,7 @@ export type NavLink = { href: string; label: string };
  * which environment you are in.
  *
  * It replaces a brand bar and a separate nav strip. The nav's active state is
- * derived from the pathname rather than hardcoded — the previous customer nav
+ * derived from the pathname rather than hardcoded the previous customer nav
  * marked Overview as current on every page, including the ones that weren't it.
  *
  * Staff sit on --panel-2 with a chip where the account name goes. web/ is locked
@@ -21,24 +21,14 @@ export type NavLink = { href: string; label: string };
  * that distinction from each other too, and one shade plus one chip buys it
  * without a second palette.
  */
-export function AppBar({
-    links,
-    context,
-    staff = false,
-}: {
-    links: NavLink[];
-    context?: React.ReactNode;
-    staff?: boolean;
-}) {
+export function AppBar({ links, context, staff = false }: { links: NavLink[]; context?: React.ReactNode; staff?: boolean }) {
     const pathname = usePathname();
 
     const isCurrent = (href: string) =>
         // The section root matches only exactly; deeper routes match by prefix,
         // so /staff/accounts/:id still lights Accounts while /staff/accounts
         // does not light Operations.
-        href === "/" || href === "/staff"
-            ? pathname === href
-            : pathname === href || pathname.startsWith(`${href}/`);
+        href === "/" || href === "/staff" ? pathname === href : pathname === href || pathname.startsWith(`${href}/`);
 
     return (
         <header className={`border-b border-rule ${staff ? "bg-panel-2" : "bg-panel"}`}>
@@ -46,9 +36,7 @@ export function AppBar({
                 <div className="col-start-1 row-start-1 flex min-w-0 items-center gap-3 py-2.5">
                     <span className="flex items-baseline gap-2 text-[1.16rem] font-extrabold tracking-[-0.02em]">
                         Vantage
-                        <span className="font-mono text-[0.72rem] font-normal uppercase tracking-[0.14em] text-ink-3">
-                            HQ
-                        </span>
+                        <span className="font-mono text-[0.72rem] font-normal uppercase tracking-[0.14em] text-ink-3">HQ</span>
                     </span>
                     {context && (
                         <>
@@ -70,9 +58,7 @@ export function AppBar({
                                 href={l.href}
                                 aria-current={on ? "page" : undefined}
                                 className={`relative inline-flex shrink-0 items-center px-3 py-2.5 font-mono text-[0.72rem] uppercase tracking-[0.08em] md:py-0 ${
-                                    on
-                                        ? "font-bold text-accent after:absolute after:inset-x-3 after:bottom-0 after:h-0.5 after:bg-accent after:content-['']"
-                                        : "text-ink-3 hover:text-ink-2"
+                                    on ? "font-bold text-accent after:absolute after:inset-x-3 after:bottom-0 after:h-0.5 after:bg-accent after:content-['']" : "text-ink-3 hover:text-ink-2"
                                 }`}
                             >
                                 {l.label}

adminsite/components/Button.tsx

@@ -12,9 +12,7 @@ export function buttonClass(variant: Variant = "solid", disabled = false, classN
     return clsx(
         "inline-flex items-center gap-2 rounded border px-4 py-2.5 text-[0.94rem] font-semibold",
         "transition-[filter,border-color] duration-150 hover:brightness-110",
-        variant === "solid"
-            ? "border-accent bg-accent text-accent-ink"
-            : "border-rule bg-panel text-ink hover:border-ink-3",
+        variant === "solid" ? "border-accent bg-accent text-accent-ink" : "border-rule bg-panel text-ink hover:border-ink-3",
         disabled && "cursor-not-allowed border-rule bg-panel text-ink-3 hover:brightness-100",
         className,
     );
@@ -28,22 +26,10 @@ export function Button({ variant = "solid", className, ...rest }: Props) {
 
 /*
  * A link that looks like a button. It exists so a navigation action never has to
- * be an <a> wrapped around a <button> — invalid markup, and it gives screen
+ * be an <a> wrapped around a <button> invalid markup, and it gives screen
  * readers two nested controls where the page means one.
  */
-export function LinkButton({
-    href,
-    variant = "solid",
-    external,
-    className,
-    children,
-}: {
-    href: string;
-    variant?: Variant;
-    external?: boolean;
-    className?: string;
-    children: React.ReactNode;
-}) {
+export function LinkButton({ href, variant = "solid", external, className, children }: { href: string; variant?: Variant; external?: boolean; className?: string; children: React.ReactNode }) {
     const cls = buttonClass(variant, false, className);
     return external ? (
         <a href={href} className={cls}>

adminsite/components/CheckoutButton.tsx

@@ -0,0 +1,40 @@
+"use client";
+
+import { useState } from "react";
+import { initPaddle } from "@/lib/paddle";
+
+/* Opens the Paddle overlay with the resolved line items and custom_data. The
+ * items come from the configurator via catalogue pricing; custom_data is what
+ * lets the webhook route without a lookup table. */
+export function CheckoutButton({
+    items,
+    customData,
+    disabled,
+    label = "Continue to payment",
+}: {
+    items: { priceId: string; quantity: number }[];
+    customData: { account_id: string; instance_id: string };
+    disabled?: boolean;
+    label?: string;
+}) {
+    const [busy, setBusy] = useState(false);
+    async function open() {
+        setBusy(true);
+        const paddle = await initPaddle();
+        setBusy(false);
+        paddle?.Checkout.open({
+            items: items.map((i) => ({ priceId: i.priceId, quantity: i.quantity })),
+            customData,
+        });
+    }
+    return (
+        <button
+            type="button"
+            disabled={disabled || busy || items.length === 0}
+            onClick={open}
+            className="rounded border border-accent/50 px-3 py-1.5 text-[0.85rem] text-accent disabled:opacity-40"
+        >
+            {busy ? "Opening…" : label}
+        </button>
+    );
+}

adminsite/components/ConfirmPlanChange.tsx

@@ -5,46 +5,31 @@ import { Button } from "./Button";
 /*
  * Editing a plan changes what every future customer gets, so the confirmation
  * names each field rather than asking "are you sure". Existing licences
- * snapshotted their plan at issue time and are genuinely unaffected — saying so
+ * snapshotted their plan at issue time and are genuinely unaffected saying so
  * is what stops a well-meaning edit being followed by a panicked reissue.
  */
-export function ConfirmPlanChange({
-    plan,
-    next,
-    issuedCount,
-    onConfirm,
-    onCancel,
-}: {
-    plan: Plan;
-    next: Plan;
-    issuedCount: number;
-    onConfirm: () => void;
-    onCancel: () => void;
-}) {
+export function ConfirmPlanChange({ plan, next, issuedCount, onConfirm, onCancel }: { plan: Plan; next: Plan; issuedCount: number; onConfirm: () => void; onCancel: () => void }) {
     const rows: { field: string; was: string; now: string }[] = [];
-    if (plan.limits.max_servers !== next.limits.max_servers)
+    const fields = ["max_servers", "max_monitors", "max_secret_groups", "max_channels", "audit_retention_days"] as const;
+    for (const f of fields) {
+        if (plan.base_limits[f] !== next.base_limits[f])
+            rows.push({
+                field: f,
+                was: limitLabel(plan.base_limits[f]),
+                now: limitLabel(next.base_limits[f]),
+            });
+    }
+    if (plan.support_level !== next.support_level)
         rows.push({
-            field: "max_servers",
-            was: limitLabel(plan.limits.max_servers),
-            now: limitLabel(next.limits.max_servers),
+            field: "support_level",
+            was: plan.support_level || "none",
+            now: next.support_level || "none",
         });
-    if (plan.limits.max_secret_groups !== next.limits.max_secret_groups)
-        rows.push({
-            field: "max_secret_groups",
-            was: limitLabel(plan.limits.max_secret_groups),
-            now: limitLabel(next.limits.max_secret_groups),
-        });
-    if (plan.limits.max_channels !== next.limits.max_channels)
-        rows.push({
-            field: "max_channels",
-            was: limitLabel(plan.limits.max_channels),
-            now: limitLabel(next.limits.max_channels),
-        });
-    if (plan.features.join(",") !== next.features.join(","))
+    if (plan.base_features.join(",") !== next.base_features.join(","))
         rows.push({
             field: "features",
-            was: plan.features.join(", ") || "none",
-            now: next.features.join(", ") || "none",
+            was: plan.base_features.join(", ") || "none",
+            now: next.base_features.join(", ") || "none",
         });
 
     return (
@@ -60,10 +45,7 @@ export function ConfirmPlanChange({
                 ))}
                 {rows.length === 0 && <li className="text-ink-3">Nothing would change.</li>}
             </ul>
-            <p className="text-[0.82rem] text-ink-3">
-                This applies to licences issued from now on. The {issuedCount} licences already
-                issued keep what they were signed with until each is reissued.
-            </p>
+            <p className="text-[0.82rem] text-ink-3">This applies to licences issued from now on. The {issuedCount} licences already issued keep what they were signed with until each is reissued.</p>
             <div className="flex flex-wrap gap-3">
                 <Button type="button" onClick={onConfirm}>
                     Change plan

adminsite/components/InstanceRecord.tsx

@@ -21,7 +21,7 @@ const KEY = (id: string) => `vantage-hq-record-open:${id}`;
 /*
  * One instance, open or closed.
  *
- * Closed it is a row — name, tier, host, term bar, state. Open it adds what the
+ * Closed it is a row name, tier, host, term bar, state. Open it adds what the
  * licence includes, who can sign in, and the actions. Deliberately ONE component
  * rather than a card and a detail panel: two components meant a single-instance
  * account got a third of a row of summary with its substance a click away, and
@@ -31,23 +31,12 @@ const KEY = (id: string) => `vantage-hq-record-open:${id}`;
  * because the thing that needs you is the thing that should be open. A manual
  * toggle is remembered per instance and beats the default from then on.
  */
-export function InstanceRecord({
-    instance,
-    license,
-    reapAfterDays,
-    defaultOpen = false,
-}: {
-    instance: Instance;
-    license?: License;
-    reapAfterDays?: number;
-    defaultOpen?: boolean;
-}) {
+export function InstanceRecord({ instance, license, reapAfterDays, defaultOpen = false }: { instance: Instance; license?: License; reapAfterDays?: number; defaultOpen?: boolean }) {
     const state = licenceState(license?.expires_at, Boolean(license));
     const days = license ? daysRemaining(license.expires_at) : 0;
     const cloud = instance.deployment === "cloud";
     const termDays = instance.tier === "free" ? 30 : 365;
-    const deleteInDays =
-        license && reapAfterDays ? daysRemaining(license.expires_at) + reapAfterDays : null;
+    const deleteInDays = license && reapAfterDays ? daysRemaining(license.expires_at) + reapAfterDays : null;
 
     const [open, setOpen] = useState(defaultOpen);
     useEffect(() => {
@@ -80,13 +69,7 @@ export function InstanceRecord({
     const panelId = `record-${instance.instance_id}`;
 
     return (
-        <article
-            className={clsx(
-                "relative grid gap-3.5 rounded border border-rule bg-panel p-4 pl-5",
-                "before:absolute before:inset-y-0 before:left-0 before:w-1 before:content-['']",
-                STRIPE[state],
-            )}
-        >
+        <article className={clsx("relative grid gap-3.5 rounded border border-rule bg-panel p-4 pl-5", "before:absolute before:inset-y-0 before:left-0 before:w-1 before:content-['']", STRIPE[state])}>
             <div className="flex flex-wrap items-start justify-between gap-3">
                 <div className="min-w-0">
                     <h2 className="text-[1.22rem]">{instance.name || "Unnamed instance"}</h2>
@@ -96,10 +79,7 @@ export function InstanceRecord({
                         {` · created ${formatDate(instance.created_at)}`}
                     </p>
                     {cloud && instance.slug && (
-                        <a
-                            href={`https://${instance.slug}.vantage.hostxtra.co.uk`}
-                            className="mt-1.5 inline-block font-mono text-[0.78rem] text-accent underline"
-                        >
+                        <a href={`https://${instance.slug}.vantage.hostxtra.co.uk`} className="mt-1.5 inline-block font-mono text-[0.78rem] text-accent underline">
                             {instance.slug}.vantage.hostxtra.co.uk &rarr;
                         </a>
                     )}
@@ -115,10 +95,7 @@ export function InstanceRecord({
                         aria-label={open ? "Hide details" : "Show details"}
                         className="grid h-[26px] w-[26px] place-items-center rounded-sm border border-rule bg-panel text-[0.6rem] text-ink-3 hover:border-accent hover:text-accent"
                     >
-                        <span
-                            aria-hidden
-                            className={clsx("block transition-transform", open && "rotate-180")}
-                        >
+                        <span aria-hidden className={clsx("block transition-transform", open && "rotate-180")}>
                             ▲
                         </span>
                     </button>
@@ -144,60 +121,36 @@ export function InstanceRecord({
 
             {state === "expired" && (
                 <div className="grid gap-1">
-                    <p className="text-[0.82rem] text-ink-2">
-                        Servers and monitors are still running, and your agents keep their keys.
-                        Changes are disabled until you renew.
-                    </p>
+                    <p className="text-[0.82rem] text-ink-2">Servers and monitors are still running, and your agents keep their keys. Changes are disabled until you renew.</p>
                     {deleteInDays !== null && (
                         <p className="text-[0.82rem] font-semibold text-expired">
-                            {deleteInDays <= 0
-                                ? "Scheduled for deletion."
-                                : `Deleted in ${deleteInDays} ${deleteInDays === 1 ? "day" : "days"} unless renewed.`}
+                            {deleteInDays <= 0 ? "Scheduled for deletion." : `Deleted in ${deleteInDays} ${deleteInDays === 1 ? "day" : "days"} unless renewed.`}
                         </p>
                     )}
                 </div>
             )}
 
-            {state === "none" && (
-                <p className="text-[0.82rem] text-ink-2">
-                    You have paid for this but it is not attached to an install yet, so no licence
-                    has been issued. Linking takes a minute.
-                </p>
-            )}
+            {state === "none" && <p className="text-[0.82rem] text-ink-2">You have paid for this but it is not attached to an install yet, so no licence has been issued. Linking takes a minute.</p>}
 
-            <div id={panelId} hidden={!open} className="grid gap-3.5">
+            <div id={panelId} className={clsx("gap-3.5", open ? "grid" : "hidden")}>
                 {license && (
                     <div className="grid gap-2 border-t border-rule-soft pt-3">
-                        <p className="font-mono text-[0.68rem] uppercase tracking-[0.12em] text-ink-3">
-                            Included in {instance.tier?.replace("_", " ") ?? "this licence"}
-                        </p>
+                        <p className="font-mono text-[0.68rem] uppercase tracking-[0.12em] text-ink-3">Included in {instance.tier?.replace("_", " ") ?? "this licence"}</p>
                         <div className="flex flex-wrap gap-x-7 gap-y-2.5">
                             <Stat n={limitLabel(license.limits.max_servers)} label="Servers" />
-                            <Stat
-                                n={limitLabel(license.limits.max_secret_groups)}
-                                label="Secret groups"
-                            />
+                            <Stat n={limitLabel(license.limits.max_secret_groups)} label="Secret groups" />
                             <Stat n={limitLabel(license.limits.max_channels)} label="Channels" />
-                            <Stat
-                                n={license.features.length ? license.features.join(" · ") : "None"}
-                                label="Features"
-                                quiet={license.features.length === 0}
-                            />
+                            <Stat n={license.features.length ? license.features.join(" · ") : "None"} label="Features" quiet={license.features.length === 0} />
                         </div>
                     </div>
                 )}
 
                 {cloud && (
                     <div className="grid gap-2 border-t border-rule-soft pt-3">
-                        <p className="font-mono text-[0.68rem] uppercase tracking-[0.12em] text-ink-3">
-                            Who can sign in
-                        </p>
+                        <p className="font-mono text-[0.68rem] uppercase tracking-[0.12em] text-ink-3">Who can sign in</p>
                         <div className="flex flex-wrap items-center gap-2">
                             {(members.data ?? []).map((m) => (
-                                <span
-                                    key={m.member_id}
-                                    className="inline-flex items-center gap-1.5 rounded-full border border-rule-soft py-0.5 pl-0.5 pr-2.5 text-[0.78rem] text-ink-2"
-                                >
+                                <span key={m.member_id} className="inline-flex items-center gap-1.5 rounded-full border border-rule-soft py-0.5 pl-0.5 pr-2.5 text-[0.78rem] text-ink-2">
                                     <span className="grid h-[18px] w-[18px] place-items-center rounded-full bg-accent font-mono text-[0.56rem] font-bold text-accent-ink">
                                         {m.email.slice(0, 2).toUpperCase()}
                                     </span>
@@ -205,13 +158,8 @@ export function InstanceRecord({
                                 </span>
                             ))}
                             {members.isLoading && <span className="text-[0.82rem] text-ink-3">Loading…</span>}
-                            {members.data?.length === 0 && (
-                                <span className="text-[0.82rem] text-ink-3">Nobody yet.</span>
-                            )}
-                            <Link
-                                href={`/instances/${instance.instance_id}`}
-                                className="text-[0.82rem] font-semibold text-accent underline"
-                            >
+                            {members.data?.length === 0 && <span className="text-[0.82rem] text-ink-3">Nobody yet.</span>}
+                            <Link href={`/instances/${instance.instance_id}`} className="text-[0.82rem] font-semibold text-accent underline">
                                 Manage access
                             </Link>
                         </div>
@@ -220,35 +168,29 @@ export function InstanceRecord({
 
                 <div className="flex flex-wrap items-center gap-2.5">
                     {state === "none" ? (
-                        <LinkButton href="/instances/link">Link an install</LinkButton>
+                        // A paid placeholder (awaiting_link) claims its real install
+                        // UUID in place. Anything else without a licence gets one from
+                        // the purchase page (self-hosted Free is created there).
+                        instance.status === "awaiting_link" ? (
+                            <LinkButton href={`/instances/link?claim=${instance.instance_id}`}>Link an install</LinkButton>
+                        ) : (
+                            <LinkButton href="/purchase">Get a licence</LinkButton>
+                        )
                     ) : cloud && instance.slug ? (
                         <>
-                            <LinkButton
-                                external
-                                href={`https://${instance.slug}.vantage.hostxtra.co.uk`}
-                            >
-                                Open instance
+                            <LinkButton external href={`https://${instance.slug}.vantage.hostxtra.co.uk`}>
+                                Open Cloud Instance
                             </LinkButton>
-                            <LinkButton
-                                variant="line"
-                                href={`/instances/${instance.instance_id}`}
-                            >
-                                Instance settings
+                            <LinkButton variant="line" href={`/instances/${instance.instance_id}`}>
+                                View Instance Settings
                             </LinkButton>
                         </>
                     ) : (
-                        <LinkButton href={`/instances/${instance.instance_id}`}>
-                            {state === "expired" ? "Renew and download" : "Licence and download"}
-                        </LinkButton>
+                        <LinkButton href={`/instances/${instance.instance_id}`}>View Instance Settings</LinkButton>
                     )}
 
                     {canRenew && (
-                        <Button
-                            type="button"
-                            variant="line"
-                            onClick={() => renew.mutate()}
-                            disabled={renew.isPending}
-                        >
+                        <Button type="button" variant="line" onClick={() => renew.mutate()} disabled={renew.isPending}>
                             {renew.isPending ? "Renewing…" : "Renew"}
                         </Button>
                     )}
@@ -261,19 +203,8 @@ export function InstanceRecord({
 function Stat({ n, label, quiet }: { n: string; label: string; quiet?: boolean }) {
     return (
         <div className="grid gap-px">
-            <b
-                className={clsx(
-                    "tabular-nums tracking-[-0.02em]",
-                    quiet
-                        ? "text-[0.95rem] font-semibold text-ink-3"
-                        : "text-[1.18rem] font-extrabold",
-                )}
-            >
-                {n}
-            </b>
-            <span className="font-mono text-[0.64rem] uppercase tracking-[0.1em] text-ink-3">
-                {label}
-            </span>
+            <b className={clsx("tabular-nums tracking-[-0.02em]", quiet ? "text-[0.95rem] font-semibold text-ink-3" : "text-[1.18rem] font-extrabold")}>{n}</b>
+            <span className="font-mono text-[0.64rem] uppercase tracking-[0.1em] text-ink-3">{label}</span>
         </div>
     );
 }

adminsite/components/Ledger.tsx

@@ -13,16 +13,12 @@ const REASON: Record<License["reason"], string> = {
 /*
  * Licences are append-only: a renewal supersedes its predecessor rather than
  * replacing it. So this is a ledger, not a table. Superseded rows stay visible
- * and are overprinted the way a cancelled instrument is — hiding them would
+ * and are overprinted the way a cancelled instrument is hiding them would
  * destroy the only record of why an instance stopped working on a given date.
  */
 export function Ledger({ licenses }: { licenses: License[] }) {
     if (licenses.length === 0) {
-        return (
-            <p className="text-ink-2">
-                No licence has ever been issued for this instance, so it is read-only.
-            </p>
-        );
+        return <p className="text-ink-2">No licence has ever been issued for this instance, so it is read-only.</p>;
     }
 
     return (
@@ -30,22 +26,9 @@ export function Ledger({ licenses }: { licenses: License[] }) {
             {licenses.map((l) => {
                 const dead = Boolean(l.superseded_by);
                 return (
-                    <li
-                        key={l.license_id}
-                        className={clsx(
-                            "grid gap-4 border-b border-rule-soft py-4 last:border-0 sm:grid-cols-[9.5rem_1fr]",
-                            dead && "text-ink-3",
-                        )}
-                    >
+                    <li key={l.license_id} className={clsx("grid gap-4 border-b border-rule-soft py-4 last:border-0 sm:grid-cols-[9.5rem_1fr]", dead && "text-ink-3")}>
                         <div className="font-mono text-[0.72rem] tabular-nums text-ink-3">
-                            <b
-                                className={clsx(
-                                    "block text-[0.82rem] font-semibold",
-                                    dead ? "text-ink-3" : "text-ink",
-                                )}
-                            >
-                                {formatDate(l.issued_at)}
-                            </b>
+                            <b className={clsx("block text-[0.82rem] font-semibold", dead ? "text-ink-3" : "text-ink")}>{formatDate(l.issued_at)}</b>
                             {formatStamp(l.issued_at)}
                         </div>
                         <div className="grid justify-items-start gap-1.5">
@@ -56,20 +39,14 @@ export function Ledger({ licenses }: { licenses: License[] }) {
                             )}
                             <p className="flex flex-wrap items-center gap-2 font-semibold">
                                 {l.tier.replace("_", " ")}
-                                <span className="rounded-sm border border-rule px-1.5 py-0.5 font-mono text-[0.72rem] font-normal uppercase tracking-[0.09em] text-accent">
-                                    {REASON[l.reason]}
-                                </span>
+                                <span className="rounded-sm border border-rule px-1.5 py-0.5 font-mono text-[0.72rem] font-normal uppercase tracking-[0.09em] text-accent">{REASON[l.reason]}</span>
                             </p>
                             <p className="font-mono text-[0.72rem] tabular-nums text-ink-3">
-                                {l.license_id.slice(0, 8)} · expires {formatDate(l.expires_at)} ·{" "}
-                                {limitLabel(l.limits.max_servers)} servers · issued by {l.issued_by}
+                                {l.license_id.slice(0, 8)} · expires {formatDate(l.expires_at)} · {limitLabel(l.limits.max_servers)} servers · issued by {l.issued_by}
                                 {l.superseded_by && (
                                     <>
                                         {" "}
-                                        · replaced by{" "}
-                                        <span className="text-accent underline">
-                                            {l.superseded_by.slice(0, 8)}
-                                        </span>
+                                        · replaced by <span className="text-accent underline">{l.superseded_by.slice(0, 8)}</span>
                                     </>
                                 )}
                             </p>

adminsite/components/LicenceDelivery.tsx

@@ -4,19 +4,11 @@ import { useState } from "react";
 import { Button } from "./Button";
 
 /*
- * A licence blob is signed public data, not a secret — it is useless on any
+ * A licence blob is signed public data, not a secret it is useless on any
  * instance other than the one it names. So it is safe to show inline, and
  * showing it is what stops a blocked download from blocking a paying customer.
  */
-export function LicenceDelivery({
-    instanceId,
-    blob,
-    downloadUrl,
-}: {
-    instanceId: string;
-    blob: string;
-    downloadUrl: string;
-}) {
+export function LicenceDelivery({ instanceId, blob, downloadUrl }: { instanceId: string; blob: string; downloadUrl: string }) {
     const [copied, setCopied] = useState(false);
 
     async function copy() {
@@ -27,13 +19,11 @@ export function LicenceDelivery({
 
     const steps = [
         <>
-            Open <code className="rounded-sm bg-accent-wash px-1">Settings → Licence</code> on your
-            install.
+            Open <code className="rounded-sm bg-accent-wash px-1">Settings → Licence</code> on your install.
         </>,
         <>Paste the licence into the box and save.</>,
         <>
-            The page reports <code className="rounded-sm bg-accent-wash px-1">Valid</code> straight
-            away — no restart.
+            The page reports <code className="rounded-sm bg-accent-wash px-1">Valid</code> straight away no restart.
         </>,
     ];
 
@@ -52,18 +42,11 @@ export function LicenceDelivery({
                     {copied ? "Copied" : "Copy to clipboard"}
                 </Button>
             </div>
-            <pre className="overflow-x-auto rounded border border-dashed border-rule bg-panel-2 p-3 font-mono text-[0.72rem] text-ink-2">
-                {blob}
-            </pre>
+            <pre className="max-h-48 overflow-y-auto whitespace-pre-wrap break-all rounded border border-dashed border-rule bg-panel-2 p-3 font-mono text-[0.72rem] text-ink-2">{blob}</pre>
             <ol className="grid gap-2">
                 {steps.map((body, i) => (
-                    <li
-                        key={i}
-                        className="grid grid-cols-[1.6rem_1fr] gap-3 text-[0.82rem] text-ink-2"
-                    >
-                        <span className="h-6 rounded-sm border border-rule text-center font-mono text-[0.72rem] leading-6 text-accent">
-                            {i + 1}
-                        </span>
+                    <li key={i} className="grid grid-cols-[1.6rem_1fr] gap-3 text-[0.82rem] text-ink-2">
+                        <span className="h-6 rounded-sm border border-rule text-center font-mono text-[0.72rem] leading-6 text-accent">{i + 1}</span>
                         <span>{body}</span>
                     </li>
                 ))}

adminsite/components/ManageBillingButton.tsx

@@ -0,0 +1,35 @@
+"use client";
+
+import { useState } from "react";
+import { ApiError, api } from "@/lib/api";
+import { Button } from "@/components/Button";
+
+/* Opens Paddle's hosted customer portal in a new tab. The account learns its
+ * paddle_customer_id from its first paid subscription's webhook, so this reports
+ * a plain message rather than erroring when there is no billing account yet. */
+export function ManageBillingButton() {
+    const [busy, setBusy] = useState(false);
+    const [note, setNote] = useState<string | null>(null);
+
+    async function open() {
+        setBusy(true);
+        setNote(null);
+        try {
+            const { url } = await api.billingPortal();
+            window.open(url, "_blank", "noopener");
+        } catch (e) {
+            setNote(e instanceof ApiError ? e.message : "Could not open billing.");
+        } finally {
+            setBusy(false);
+        }
+    }
+
+    return (
+        <span className="inline-flex items-center gap-2">
+            <Button type="button" variant="line" onClick={open} disabled={busy}>
+                {busy ? "Opening…" : "Manage billing"}
+            </Button>
+            {note && <span className="text-[0.78rem] text-ink-3">{note}</span>}
+        </span>
+    );
+}

adminsite/components/MembersPanel.tsx

@@ -9,7 +9,7 @@ import { Button } from "@/components/Button";
 const ROLES: InstanceRole[] = ["owner", "admin", "member"];
 
 /*
- * Absent entirely for self-hosted instances — the backend refuses those, and a
+ * Absent entirely for self-hosted instances the backend refuses those, and a
  * panel that renders controls the server will reject is a panel that lies.
  */
 export function MembersPanel({ instanceId }: { instanceId: string }) {
@@ -26,8 +26,7 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
     const people = useQuery({ queryKey: ["account-users"], queryFn: api.accountUsers });
 
     const refresh = () => qc.invalidateQueries({ queryKey: ["members", instanceId] });
-    const fail = (e: unknown) =>
-        setError(e instanceof ApiError ? e.message : "Something went wrong. Try again.");
+    const fail = (e: unknown) => setError(e instanceof ApiError ? e.message : "Something went wrong. Try again.");
 
     const grant = useMutation({
         mutationFn: () => api.grantMember(instanceId, selected, role),
@@ -39,8 +38,7 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
         onError: fail,
     });
     const changeRole = useMutation({
-        mutationFn: (v: { uid: string; role: InstanceRole }) =>
-            api.setMemberRole(instanceId, v.uid, v.role),
+        mutationFn: (v: { uid: string; role: InstanceRole }) => api.setMemberRole(instanceId, v.uid, v.role),
         onSuccess: refresh,
         onError: fail,
     });
@@ -54,29 +52,21 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
     const canManage = myRole === "owner" || myRole === "admin";
 
     const granted = new Set((members.data ?? []).map((m) => m.customer_user_id));
-    const candidates = (people.data ?? []).filter(
-        (p) => !granted.has(p.user_id) && p.verified_at,
-    );
+    const candidates = (people.data ?? []).filter((p) => !granted.has(p.user_id) && p.verified_at);
     const pending = (people.data ?? []).filter((p) => !p.verified_at).length;
 
     return (
         <section className="grid gap-4 rounded border border-rule bg-panel p-5">
             <div className="grid gap-1">
                 <h2 className="text-xl">Who can sign in</h2>
-                <p className="text-[0.82rem] text-ink-2">
-                    Each person here has a real user inside this instance and signs in with their
-                    Vantage HQ password.
-                </p>
+                <p className="text-[0.82rem] text-ink-2">Each person here has a real user inside this instance and signs in with their Vantage HQ password.</p>
             </div>
 
             {error && <p className="text-[0.9rem] text-expired">{error}</p>}
 
             <ul className="grid gap-2">
                 {(members.data ?? []).map((m) => (
-                    <li
-                        key={m.member_id}
-                        className="flex flex-wrap items-center justify-between gap-3 border-b border-rule-soft pb-2"
-                    >
+                    <li key={m.member_id} className="flex flex-wrap items-center justify-between gap-3 border-b border-rule-soft pb-2">
                         <span>{m.email}</span>
                         <span className="flex items-center gap-3">
                             {canManage ? (
@@ -104,8 +94,7 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
                                     type="button"
                                     className="text-[0.82rem] font-semibold text-expired underline"
                                     onClick={() => {
-                                        if (confirm(`Remove ${m.email} from this instance?`))
-                                            revoke.mutate(m.customer_user_id);
+                                        if (confirm(`Remove ${m.email} from this instance?`)) revoke.mutate(m.customer_user_id);
                                     }}
                                 >
                                     Remove
@@ -114,9 +103,7 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
                         </span>
                     </li>
                 ))}
-                {members.data?.length === 0 && (
-                    <li className="text-ink-2">Nobody has been added yet.</li>
-                )}
+                {members.data?.length === 0 && <li className="text-ink-2">Nobody has been added yet.</li>}
             </ul>
 
             {canManage && (
@@ -129,14 +116,8 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
                     }}
                 >
                     <label className="grid gap-1.5">
-                        <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">
-                            Add someone
-                        </span>
-                        <select
-                            value={selected}
-                            onChange={(e) => setSelected(e.target.value)}
-                            className="rounded border border-rule bg-panel-2 px-2.5 py-2 font-mono text-ink"
-                        >
+                        <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">Add someone</span>
+                        <select value={selected} onChange={(e) => setSelected(e.target.value)} className="rounded border border-rule bg-panel-2 px-2.5 py-2 font-mono text-ink">
                             <option value="">Choose a person…</option>
                             {candidates.map((p) => (
                                 <option key={p.user_id} value={p.user_id}>
@@ -146,14 +127,8 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
                         </select>
                     </label>
                     <label className="grid gap-1.5">
-                        <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">
-                            Role here
-                        </span>
-                        <select
-                            value={role}
-                            onChange={(e) => setRole(e.target.value as InstanceRole)}
-                            className="rounded border border-rule bg-panel-2 px-2.5 py-2 font-mono text-ink"
-                        >
+                        <span className="font-mono text-[0.72rem] uppercase tracking-[0.1em] text-ink-3">Role here</span>
+                        <select value={role} onChange={(e) => setRole(e.target.value as InstanceRole)} className="rounded border border-rule bg-panel-2 px-2.5 py-2 font-mono text-ink">
                             {ROLES.map((r) => (
                                 <option key={r} value={r}>
                                     {r}
@@ -169,8 +144,7 @@ export function MembersPanel({ instanceId }: { instanceId: string }) {
 
             {canManage && pending > 0 && (
                 <p className="text-[0.82rem] text-ink-3">
-                    {pending} invited {pending === 1 ? "person has" : "people have"} not accepted
-                    yet and cannot be added until they do.
+                    {pending} invited {pending === 1 ? "person has" : "people have"} not accepted yet and cannot be added until they do.
                 </p>
             )}
         </section>

adminsite/components/NotConnected.tsx

@@ -1,6 +1,6 @@
 /*
  * The deployment failure this repo makes most often, made legible. It names the
- * variable, the value baked in, and both reasons it fails — unreachable from
+ * variable, the value baked in, and both reasons it fails unreachable from
  * the browser, or missing from admin's ADMIN_ORIGIN.
  */
 export function NotConnectedPanel({ url }: { url: string }) {
@@ -9,19 +9,16 @@ export function NotConnectedPanel({ url }: { url: string }) {
             <h2 className="text-xl text-expired">Not connected to the licensing service</h2>
             {url ? (
                 <p className="text-ink-2">
-                    This build points at <code className="text-ink">ADMIN_API_URL</code> ={" "}
-                    <code className="text-ink">{url}</code>, which did not respond.
+                    This build points at <code className="text-ink">ADMIN_API_URL</code> = <code className="text-ink">{url}</code>, which did not respond.
                 </p>
             ) : (
                 <p className="text-ink-2">
-                    <code className="text-ink">ADMIN_API_URL</code> was not set when this app was
-                    built, so there is nowhere to send requests.
+                    <code className="text-ink">ADMIN_API_URL</code> was not set when this app was built, so there is nowhere to send requests.
                 </p>
             )}
             <p className="text-[0.82rem] text-ink-3">
-                The value is baked in when the image is built and has to be reachable from your
-                browser, not just from the server. It also has to appear in the licensing
-                service&rsquo;s <code>ADMIN_ORIGIN</code>, or the browser blocks every request.
+                The value is baked in when the image is built and has to be reachable from your browser, not just from the server. It also has to appear in the licensing service&rsquo;s{" "}
+                <code>ADMIN_ORIGIN</code>, or the browser blocks every request.
             </p>
         </div>
     );

adminsite/components/PageFrame.tsx

@@ -7,16 +7,10 @@
  * many instances exist, so the page has a floor.
  *
  * It collapses below lg in source order, which puts the main column first on a
- * phone. Nothing is hidden at any width — if content only fits on a desktop it
+ * phone. Nothing is hidden at any width if content only fits on a desktop it
  * does not belong in the rail.
  */
-export function PageFrame({
-    children,
-    aside,
-}: {
-    children: React.ReactNode;
-    aside?: React.ReactNode;
-}) {
+export function PageFrame({ children, aside }: { children: React.ReactNode; aside?: React.ReactNode }) {
     if (!aside) return <div className="grid gap-5">{children}</div>;
 
     return (
@@ -28,24 +22,12 @@ export function PageFrame({
 }
 
 /** One card in the rail. Title is a label, not a heading you read for pleasure. */
-export function RailCard({
-    title,
-    count,
-    children,
-}: {
-    title: string;
-    count?: number | string;
-    children: React.ReactNode;
-}) {
+export function RailCard({ title, count, children }: { title: string; count?: number | string; children: React.ReactNode }) {
     return (
         <section className="grid gap-2.5 rounded border border-rule bg-panel p-3.5">
             <header className="flex items-baseline justify-between gap-2.5">
-                <h2 className="font-mono text-[0.66rem] font-normal uppercase tracking-[0.12em] text-ink-3">
-                    {title}
-                </h2>
-                {count !== undefined && (
-                    <b className="text-[0.95rem] font-extrabold tabular-nums">{count}</b>
-                )}
+                <h2 className="font-mono text-[0.66rem] font-normal uppercase tracking-[0.12em] text-ink-3">{title}</h2>
+                {count !== undefined && <b className="text-[0.95rem] font-extrabold tabular-nums">{count}</b>}
             </header>
             {children}
         </section>
@@ -59,9 +41,7 @@ export function RailFacts({ rows }: { rows: { label: string; value: React.ReactN
             {rows.map((r) => (
                 <div key={r.label} className="flex justify-between gap-2.5 text-[0.82rem]">
                     <dt className="text-ink-3">{r.label}</dt>
-                    <dd className="m-0 truncate font-mono text-[0.78rem] tabular-nums text-ink">
-                        {r.value}
-                    </dd>
+                    <dd className="m-0 truncate font-mono text-[0.78rem] tabular-nums text-ink">{r.value}</dd>
                 </div>
             ))}
         </dl>

adminsite/components/PageHeader.tsx

@@ -5,7 +5,7 @@ import { useState } from "react";
 
 /*
  * One record-line entry. `copy` marks the value as worth lifting to the
- * clipboard — an instance UUID or a licence ID, the strings people paste into
+ * clipboard an instance UUID or a licence ID, the strings people paste into
  * support tickets.
  */
 export type RecordField = { key: string; value: string; copy?: boolean };
@@ -60,10 +60,7 @@ export function PageHeader({
     return (
         <header className="grid gap-3">
             {back && (
-                <Link
-                    href={back.href}
-                    className="justify-self-start font-mono text-[0.7rem] uppercase tracking-[0.1em] text-ink-3 hover:text-accent"
-                >
+                <Link href={back.href} className="justify-self-start font-mono text-[0.7rem] uppercase tracking-[0.1em] text-ink-3 hover:text-accent">
                     &larr; {back.label}
                 </Link>
             )}
@@ -80,12 +77,8 @@ export function PageHeader({
                 <div className="flex flex-wrap items-center gap-x-5 gap-y-2.5 border-t border-rule pt-2.5">
                     {record?.map((f) => (
                         <span key={f.key} className="flex items-center gap-2">
-                            <span className="font-mono text-[0.64rem] uppercase tracking-[0.14em] text-ink-3">
-                                {f.key}
-                            </span>
-                            <span className="font-mono text-[0.78rem] tabular-nums text-ink-2">
-                                {f.value}
-                            </span>
+                            <span className="font-mono text-[0.64rem] uppercase tracking-[0.14em] text-ink-3">{f.key}</span>
+                            <span className="font-mono text-[0.78rem] tabular-nums text-ink-2">{f.value}</span>
                             {f.copy && <CopyButton value={f.value} />}
                         </span>
                     ))}

adminsite/components/PlanConfigurator.tsx

@@ -0,0 +1,173 @@
+"use client";
+
+import { useMemo } from "react";
+import type { CatalogueRow, Deployment, Plan, Term, Tier } from "@/lib/api";
+
+export interface PlanChoice {
+    tier: Tier;
+    term: Term;
+    servers: number;
+    features: string[];
+}
+
+/* Self-hosted sells annual only. The reason is in shared/license: an offline
+ * licence cannot be revoked, so the term length IS the revocation window. */
+function termsFor(deployment: Deployment): Term[] {
+    return deployment === "self_hosted" ? ["annual"] : ["monthly", "annual"];
+}
+
+/*
+ * PlanConfigurator is the whole of "what is this instance allowed", driven
+ * entirely by the plans and catalogue it is handed.
+ *
+ * A feature appears because a catalogue row offers it, and shows a price because
+ * that row has one. Nothing here is hardcoded per tier, which is what lets a new
+ * paid add-on ship as a staff edit rather than a frontend release.
+ *
+ * It saves nothing and knows nothing about who is using it. Staff mount it to
+ * set an entitlement; the customer purchase flow mounts the same component and
+ * hands it a checkout.
+ */
+export default function PlanConfigurator({
+    deployment,
+    value,
+    plans,
+    catalogue,
+    onChange,
+    disabled,
+}: {
+    deployment: Deployment;
+    value: PlanChoice;
+    plans: Plan[];
+    catalogue: CatalogueRow[];
+    onChange: (next: PlanChoice) => void;
+    disabled?: boolean;
+}) {
+    const available = useMemo(
+        () => plans.filter((p) => p.deployment === deployment && p.active),
+        [plans, deployment],
+    );
+    const plan = available.find((p) => p.tier === value.tier);
+    const rows = useMemo(
+        () => catalogue.filter((r) => r.deployment === deployment && r.tier === value.tier),
+        [catalogue, deployment, value.tier],
+    );
+    const featureRows = rows.filter((r) => r.kind === "feature");
+    const base = plan?.base_limits.max_servers ?? 0;
+    const extra = Math.max(0, value.servers - base);
+
+    const priceOf = (r: CatalogueRow) =>
+        r.price_ids?.sandbox?.[value.term] ?? r.price_ids?.production?.[value.term] ?? "";
+
+    return (
+        <div className="space-y-4">
+            <fieldset className="space-y-1.5">
+                <legend className="text-[0.78rem] text-ink-3">Tier</legend>
+                <div className="flex flex-wrap gap-2">
+                    {available.map((p) => (
+                        <button
+                            key={p.tier}
+                            type="button"
+                            disabled={disabled}
+                            onClick={() =>
+                                onChange({
+                                    ...value,
+                                    tier: p.tier,
+                                    /* Moving tier moves the floor, so clamp up
+                                     * rather than leaving an invalid count the
+                                     * backend would refuse. */
+                                    servers: Math.max(value.servers, p.base_limits.max_servers),
+                                })
+                            }
+                            className={`rounded border px-3 py-1.5 text-[0.85rem] ${
+                                p.tier === value.tier
+                                    ? "border-accent text-accent"
+                                    : "border-rule text-ink-2"
+                            }`}
+                        >
+                            {p.name}
+                        </button>
+                    ))}
+                </div>
+            </fieldset>
+
+            <fieldset className="space-y-1.5">
+                <legend className="text-[0.78rem] text-ink-3">Term</legend>
+                <div className="flex flex-wrap gap-2">
+                    {termsFor(deployment).map((t) => (
+                        <button
+                            key={t}
+                            type="button"
+                            disabled={disabled}
+                            onClick={() => onChange({ ...value, term: t })}
+                            className={`rounded border px-3 py-1.5 text-[0.85rem] ${
+                                t === value.term
+                                    ? "border-accent text-accent"
+                                    : "border-rule text-ink-2"
+                            }`}
+                        >
+                            {t === "monthly" ? "Monthly" : "Annual"}
+                        </button>
+                    ))}
+                </div>
+                {deployment === "self_hosted" && (
+                    <p className="text-[0.72rem] text-ink-3">
+                        Self-hosted is annual only.
+                    </p>
+                )}
+            </fieldset>
+
+            <label className="block">
+                <span className="mb-1 block text-[0.78rem] text-ink-3">Servers</span>
+                <input
+                    type="number"
+                    min={base}
+                    value={value.servers}
+                    disabled={disabled}
+                    onChange={(e) =>
+                        onChange({ ...value, servers: Number(e.target.value) })
+                    }
+                    className="w-28 rounded border border-rule bg-panel px-2 py-1.5 text-[0.85rem] text-ink"
+                />
+                <span className="ml-2 text-[0.78rem] text-ink-3">
+                    {base} included{extra > 0 ? `, ${extra} extra` : ""}
+                </span>
+            </label>
+
+            {featureRows.length > 0 && (
+                <fieldset className="space-y-1.5">
+                    <legend className="text-[0.78rem] text-ink-3">Features</legend>
+                    {featureRows.map((r) => {
+                        const key = r.feature_key!;
+                        const on = value.features.includes(key);
+                        const priced = priceOf(r) !== "";
+                        return (
+                            <label
+                                key={key}
+                                className="flex items-center gap-2 text-[0.85rem] text-ink-2"
+                            >
+                                <input
+                                    type="checkbox"
+                                    checked={on}
+                                    disabled={disabled}
+                                    onChange={(e) =>
+                                        onChange({
+                                            ...value,
+                                            features: e.target.checked
+                                                ? [...value.features, key]
+                                                : value.features.filter((f) => f !== key),
+                                        })
+                                    }
+                                />
+                                <span>{key === "console" ? "Browser console" : "Single sign-on"}</span>
+                                <span className="text-[0.72rem] text-ink-3">
+                                    {priced ? "paid add-on" : "included"}
+                                </span>
+                            </label>
+                        );
+                    })}
+                </fieldset>
+            )}
+        </div>
+    );
+}

adminsite/components/RelinkPanel.tsx

@@ -6,18 +6,7 @@ import { Field } from "./Field";
 
 const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
 
-export function RelinkPanel({
-    used,
-    max,
-    onRelink,
-    error,
-}: {
-    instanceId: string;
-    used: number;
-    max: number;
-    onRelink: (newId: string) => void;
-    error?: string;
-}) {
+export function RelinkPanel({ used, max, onRelink, error }: { instanceId: string; used: number; max: number; onRelink: (newId: string) => void; error?: string }) {
     const [open, setOpen] = useState(false);
     const [value, setValue] = useState("");
     const remaining = Math.max(0, max - used);
@@ -26,32 +15,14 @@ export function RelinkPanel({
     return (
         <section className="grid gap-3 border-t border-rule-soft pt-5">
             <h2 className="text-xl">Moved to a new server?</h2>
-            <p className="text-[0.82rem] text-ink-2">
-                Relinking issues a replacement licence for the new install, covering the rest of
-                your current term.
-            </p>
-            {open && !exhausted && (
-                <Field
-                    label="New instance ID"
-                    value={value}
-                    onChange={(e) => setValue(e.target.value)}
-                    error={error}
-                    hint="From Settings → Licence on the new install."
-                />
-            )}
+            <p className="text-[0.82rem] text-ink-2">Relinking issues a replacement licence for the new install, covering the rest of your current term.</p>
+            {open && !exhausted && <Field label="New instance ID" value={value} onChange={(e) => setValue(e.target.value)} error={error} hint="From Settings → Licence on the new install." />}
             <div className="flex flex-wrap items-center gap-3">
-                <Button
-                    type="button"
-                    variant="line"
-                    disabled={exhausted || (open && !UUID_RE.test(value.trim()))}
-                    onClick={() => (open ? onRelink(value.trim()) : setOpen(true))}
-                >
+                <Button type="button" variant="line" disabled={exhausted || (open && !UUID_RE.test(value.trim()))} onClick={() => (open ? onRelink(value.trim()) : setOpen(true))}>
                     Relink to a new install
                 </Button>
                 <span className="text-[0.82rem] text-ink-3">
-                    {exhausted
-                        ? "You have used every relink for this term — contact support and we will sort it out."
-                        : `${remaining} of ${max} relinks left this term`}
+                    {exhausted ? "You have used every relink for this term contact support and we will sort it out." : `${remaining} of ${max} relinks left this term`}
                 </span>
             </div>
         </section>

adminsite/lib/api.ts

@@ -61,7 +61,8 @@ const del = <T,>(path: string) => req<T>(path, { method: "DELETE" });
 // --- types ---------------------------------------------------------------
 
 export type Deployment = "cloud" | "self_hosted";
-export type Tier = "free" | "professional" | "self_hosted";
+export type Tier = "free" | "professional" | "enterprise";
+export type Term = "monthly" | "annual";
 export type InstanceStatus = "awaiting_link" | "active" | "lapsed" | "cancelled" | "deleted";
 
 /*
@@ -103,8 +104,10 @@ export interface InstanceMember {
 
 export interface Limits {
     max_servers: number;
+    max_monitors: number;
     max_secret_groups: number;
     max_channels: number;
+    audit_retention_days: number;
 }
 
 export interface Account {
@@ -157,16 +160,93 @@ export interface Subscription {
 }
 
 export interface Plan {
+    deployment: Deployment;
     tier: Tier;
     name: string;
-    deployment: Deployment;
-    limits: Limits;
-    features: string[];
-    paddle_product_id?: string;
-    paddle_price_ids?: Record<string, string>;
+    /* The allowance BEFORE anything is bought. Not the total — a metered
+     * dimension adds to it. */
+    base_limits: Limits;
+    base_features: string[];
+    support_level: string;
     active: boolean;
 }
 
+export interface CatalogueRow {
+    kind: "base" | "limit" | "feature";
+    deployment: Deployment;
+    tier: Tier;
+    limit_key?: string;
+    feature_key?: string;
+    /* environment -> term -> Paddle price ID. The running PADDLE_ENV picks the
+     * inner map; both environments are stored so promotion is a config change
+     * rather than a data migration. */
+    price_ids?: Record<string, Partial<Record<Term, string>>>;
+}
+
+export interface EntitlementConfig {
+    servers: number;
+    features: string[];
+}
+
+export interface CheckoutOptions {
+    plans: Plan[];
+    catalogue: CatalogueRow[];
+    env: "sandbox" | "production";
+}
+
+/*
+ * lineItemsFor builds the Paddle checkout items for a configuration, client-side
+ * from the catalogue already fetched. It mirrors the Go catalogue.LineItems and
+ * its billable() exactly: base is quantity 1; the per-server unit's quantity is
+ * servers MINUS the plan's base allowance (never charge for the base — the one
+ * subtraction, kept here to match the server); a feature contributes an item
+ * only when its row has a price in this environment/term.
+ */
+export function lineItemsFor(
+    opts: CheckoutOptions,
+    choice: { tier: Tier; term: Term; servers: number; features: string[] },
+    deployment: Deployment,
+): { priceId: string; quantity: number }[] {
+    const env = opts.env;
+    const plan = opts.plans.find((p) => p.deployment === deployment && p.tier === choice.tier);
+    if (!plan) return [];
+    const rows = opts.catalogue.filter(
+        (r) => r.deployment === deployment && r.tier === choice.tier,
+    );
+    const priceOf = (r: CatalogueRow) => r.price_ids?.[env]?.[choice.term] ?? "";
+    const base = plan.base_limits.max_servers;
+    const items: { priceId: string; quantity: number }[] = [];
+    for (const r of rows) {
+        const id = priceOf(r);
+        if (r.kind === "base") {
+            if (id) items.push({ priceId: id, quantity: 1 });
+        } else if (r.kind === "limit" && r.limit_key === "max_servers") {
+            // -1 base is unlimited: nothing metered. Otherwise charge servers over base.
+            const qty = base === -1 ? 0 : choice.servers - base;
+            if (qty > 0 && id) items.push({ priceId: id, quantity: qty });
+        } else if (r.kind === "feature" && r.feature_key) {
+            if (choice.features.includes(r.feature_key) && id) {
+                items.push({ priceId: id, quantity: 1 });
+            }
+        }
+    }
+    return items;
+}
+
+export interface Entitlement {
+    instance_id: string;
+    account_id: string;
+    deployment: Deployment;
+    tier: Tier;
+    term: Term;
+    desired: EntitlementConfig;
+    granted: EntitlementConfig;
+    resolved_limits: Limits;
+    scheduled_change_at?: string;
+    granted_at: string;
+    updated_at: string;
+}
+
 export interface CustomerUser {
     user_id: string;
     account_id: string;
@@ -216,8 +296,6 @@ export const api = {
     staffLogin: (email: string, password: string) =>
         post<Session>("/auth/staff/login", { email, password }),
     logout: () => post<{ ok: boolean }>("/auth/logout"),
-    signup: (payload: { name: string; email: string; password: string; website?: string }) =>
-        post<{ pending: boolean }>("/auth/signup", payload),
     verify: (token: string) =>
         req<{ verified: boolean; needs_password?: boolean }>(
             `/auth/verify?token=${encodeURIComponent(token)}`,
@@ -228,12 +306,31 @@ export const api = {
         post<Instance>("/api/instances/link", { instance_id, name }),
     createInstance: (name: string) => post<Instance>("/api/instances", { name }),
     renewInstance: (id: string) => post<License>(`/api/instances/${id}/renew`, {}),
+    // Self-hosted Free: issue the licence on an already-linked instance.
+    claimFree: (id: string) => post<License>(`/api/instances/${id}/claim-free`, {}),
     relink: (id: string, instance_id: string) =>
         post<License>(`/api/instances/${id}/relink`, { instance_id }),
     license: (id: string) => req<License & { blob?: string }>(`/api/instances/${id}/license`),
     licenseBlobUrl: (id: string) => `${API_BASE}/api/instances/${id}/license/download`,
     subscriptions: () => req<Subscription[]>("/api/subscriptions"),
 
+    entitlement: (id: string) =>
+        req<{ entitlement: Entitlement; pending: boolean }>(`/api/instances/${id}/entitlement`),
+    checkoutOptions: () => req<CheckoutOptions>("/api/checkout/options"),
+    createSelfHosted: (name: string) =>
+        post<{ instance_id: string }>("/api/instances/self-hosted", { name }),
+    // Paid cloud: provisions the real instance the paid webhook then licenses.
+    createCloudCheckout: (name: string) =>
+        post<{ instance_id: string }>("/api/instances/cloud", { name }),
+    updateEntitlement: (
+        id: string,
+        body: { tier: Tier; term: Term; servers: number; features: string[] },
+    ) => put<{ entitlement: Entitlement; pending: boolean }>(`/api/instances/${id}/entitlement`, body),
+    claimLink: (placeholderId: string, instance_id: string) =>
+        post<{ instance_id: string; warning?: string }>(
+            `/api/instances/${placeholderId}/claim-link`, { instance_id }),
+    billingPortal: () => post<{ url: string }>("/api/billing/portal"),
+
     accountUsers: () => req<AccountUser[]>("/api/account/users"),
     invite: (email: string, role: AccountRole) =>
         post<{ invited: boolean }>("/api/account/users", { email, role }),
@@ -274,11 +371,21 @@ export const api = {
         licenses: (params?: Record<string, string>) =>
             req<License[]>(`/api/staff/licenses${params ? `?${new URLSearchParams(params)}` : ""}`),
         plans: () => req<Plan[]>("/api/staff/plans"),
-        updatePlan: (tier: Tier, plan: Omit<Plan, "tier" | "deployment">) =>
-            req<{ updated: boolean }>(`/api/staff/plans/${tier}`, {
-                method: "PUT",
-                body: JSON.stringify(plan),
-            }),
+        updatePlan: (deployment: Deployment, tier: Tier, plan: Plan) =>
+            put<{ updated: boolean }>(`/api/staff/plans/${deployment}/${tier}`, plan),
+        catalogue: () => req<CatalogueRow[]>("/api/staff/catalogue"),
+        updateCatalogue: (row: CatalogueRow) =>
+            put<{ updated: boolean }>("/api/staff/catalogue", row),
+        entitlement: (id: string) =>
+            req<{ entitlement: Entitlement; pending: boolean }>(
+                `/api/staff/instances/${id}/entitlement`,
+            ),
+        setEntitlement: (
+            id: string,
+            body: { tier: Tier; term: Term; servers: number; features: string[]; grant?: boolean },
+        ) =>
+            put<{ entitlement: Entitlement; pending: boolean }>(
+                `/api/staff/instances/${id}/entitlement`, body),
         audit: (accountId?: string) =>
             req<AuditEntry[]>(`/api/staff/audit${accountId ? `?account_id=${accountId}` : ""}`),
         injectionHealth: () =>

adminsite/lib/paddle.ts

@@ -0,0 +1,76 @@
+import { initializePaddle, type Paddle } from "@paddle/paddle-js";
+
+let cached: Promise<Paddle | undefined> | null = null;
+
+/* One Paddle instance for the app. The token and environment are baked into the
+ * build (NEXT_PUBLIC_*), never fetched, so a production build can never load a
+ * sandbox token by accident. */
+export function initPaddle(): Promise<Paddle | undefined> {
+    if (!cached) {
+        cached = initializePaddle({
+            environment:
+                (process.env.NEXT_PUBLIC_PADDLE_ENV as "sandbox" | "production") ?? "sandbox",
+            token: process.env.NEXT_PUBLIC_PADDLE_CLIENT_TOKEN ?? "",
+        });
+    }
+    return cached;
+}
+
+export interface PricedLine {
+    priceId: string;
+    /* Already localised and currency-formatted by Paddle, e.g. "£39.00". The line
+     * total for the quantity, not the unit price. */
+    total: string;
+    unit: string;
+}
+
+export interface PricePreview {
+    currency: string;
+    /* Grand total, formatted. */
+    total: string;
+    lines: Record<string, PricedLine>;
+}
+
+/*
+ * previewPrices asks Paddle for the real localised prices of a set of line items,
+ * so the order summary shows what the customer will actually pay rather than a
+ * hardcoded number that would drift from the dashboard.
+ *
+ * It returns null when Paddle is unavailable or a price cannot be previewed (an
+ * unconfigured sandbox price, an ad blocker). The caller falls back to showing
+ * the line items without amounts rather than a wrong total — the real figure
+ * still appears in the checkout overlay, which is the authority.
+ */
+export async function previewPrices(
+    items: { priceId: string; quantity: number }[],
+): Promise<PricePreview | null> {
+    if (items.length === 0) return { currency: "", total: "", lines: {} };
+    const paddle = await initPaddle();
+    if (!paddle) return null;
+    try {
+        const res = await paddle.PricePreview({
+            items: items.map((i) => ({ priceId: i.priceId, quantity: i.quantity })),
+        });
+        const currency = res.data.currencyCode;
+        const lines: Record<string, PricedLine> = {};
+        // Paddle gives per-line totals but no grand total, so sum the raw minor
+        // units and format once. The checkout overlay is the authority; this is
+        // the honest preview beside it.
+        let subtotalMinor = 0;
+        for (const li of res.data.details.lineItems) {
+            lines[li.price.id] = {
+                priceId: li.price.id,
+                total: li.formattedTotals.subtotal,
+                unit: li.formattedUnitTotals.subtotal,
+            };
+            subtotalMinor += Number.parseInt(li.totals.subtotal, 10) || 0;
+        }
+        const total = new Intl.NumberFormat(undefined, {
+            style: "currency",
+            currency,
+        }).format(subtotalMinor / 100);
+        return { currency, total, lines };
+    } catch {
+        return null;
+    }
+}

adminsite/lib/theme.tsx

@@ -31,7 +31,7 @@ export function useTheme(): [ThemePref, (p: ThemePref) => void] {
     // Starts at "system" on both server and first client render so hydration
     // matches; the real value lands in the effect below. The inline script in
     // app/layout.tsx has already painted the correct colours by then, so there
-    // is no flash — only this control's own highlight settles a tick late.
+    // is no flash only this control's own highlight settles a tick late.
     const [pref, setPref] = useState<ThemePref>("system");
 
     useEffect(() => setPref(readTheme()), []);
@@ -51,6 +51,4 @@ export function useTheme(): [ThemePref, (p: ThemePref) => void] {
  * Runs before first paint, so a dark-preferring user never sees a white flash.
  * Inlined as a string because it has to execute ahead of React.
  */
-export const THEME_BOOT_SCRIPT = `try{var t=localStorage.getItem(${JSON.stringify(
-    KEY,
-)});if(t==="light"||t==="dark")document.documentElement.setAttribute("data-theme",t)}catch(e){}`;
+export const THEME_BOOT_SCRIPT = `try{var t=localStorage.getItem(${JSON.stringify(KEY)});if(t==="light"||t==="dark")document.documentElement.setAttribute("data-theme",t)}catch(e){}`;

adminsite/package-lock.json

@@ -8,6 +8,7 @@
             "name": "vantage-adminsite",
             "version": "0.1.0",
             "dependencies": {
+                "@paddle/paddle-js": "^1.6.4",
                 "@tanstack/react-query": "^5.51.1",
                 "clsx": "^2.1.1",
                 "next": "16.2.9",
@@ -1309,6 +1310,12 @@
                 "node": ">=12.4.0"
             }
         },
+        "node_modules/@paddle/paddle-js": {
+            "version": "1.6.4",
+            "resolved": "https://registry.npmjs.org/@paddle/paddle-js/-/paddle-js-1.6.4.tgz",
+            "integrity": "sha512-ncfnS6I8mCX6krZ3Sgz2iAYivGmhdI81yt9mT6prtPj4Ipd9J3M12LCJRUFL4FB7BYeeuV04c33RSEnbZUBCaA==",
+            "license": "Apache-2.0"
+        },
         "node_modules/@rtsao/scc": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/@rtsao/scc/-/scc-1.1.0.tgz",

adminsite/package.json

@@ -9,11 +9,12 @@
         "lint": "next lint"
     },
     "dependencies": {
+        "@paddle/paddle-js": "^1.6.4",
+        "@tanstack/react-query": "^5.51.1",
+        "clsx": "^2.1.1",
         "next": "16.2.9",
         "react": "^18.3.1",
-        "react-dom": "^18.3.1",
-        "@tanstack/react-query": "^5.51.1",
-        "clsx": "^2.1.1"
+        "react-dom": "^18.3.1"
     },
     "devDependencies": {
         "@types/node": "^20.14.11",

agent/cmd/main.go

@@ -7,8 +7,8 @@ import (
 	"os/signal"
 	"syscall"
 
-	"github.com/mrhid6/vantage/agent/internal/config"
-	agentsync "github.com/mrhid6/vantage/agent/internal/sync"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/config"
+	agentsync "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/sync"
 )
 
 var Version = "dev"

agent/go.mod

@@ -1,15 +1,15 @@
-module github.com/mrhid6/vantage/agent
+module gitea.hostxtra.co.uk/mrhid6/vantage/agent
 
 go 1.26
 
 require (
+	golang.org/x/sys v0.20.0
 	google.golang.org/grpc v1.64.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	golang.org/x/net v0.25.0 // indirect
-	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/text v0.15.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240521202816-d264139d666e // indirect
 	google.golang.org/protobuf v1.34.1 // indirect

agent/internal/exec/exec.go

@@ -11,12 +11,9 @@ import (
 	"sync"
 	"time"
 
-	"github.com/mrhid6/vantage/agent/internal/grpc/pb"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 )
 
-
-
-
 type streamWriter struct {
 	mu   sync.Mutex
 	seq  uint64
@@ -35,21 +32,10 @@ func (w *streamWriter) Write(p []byte) (int, error) {
 	return len(p), nil
 }
 
-
-
 func WorkspacePath(workspaceID string) string {
 	return filepath.Join(os.TempDir(), "vantage-run-"+workspaceID)
 }
 
-
-
-
-
-
-
-
-
-
 func RunStep(cmd *pb.RunStepCmd, emit func(seq uint64, data []byte)) *pb.StepResult {
 	res := &pb.StepResult{CommandId: "", OutputEnv: map[string]string{}}
 
@@ -102,7 +88,7 @@ func RunStep(cmd *pb.RunStepCmd, emit func(seq uint64, data []byte)) *pb.StepRes
 			}
 		}
 		c = exec.CommandContext(ctx, shell, "-NoProfile", "-NonInteractive", "-File", scriptPath)
-	default: 
+	default:
 		scriptPath = filepath.Join(dir, "step.sh")
 		if err := os.WriteFile(scriptPath, []byte(cmd.Script), 0700); err != nil {
 			res.ExitCode = 1
@@ -126,7 +112,6 @@ func RunStep(cmd *pb.RunStepCmd, emit func(seq uint64, data []byte)) *pb.StepRes
 	c.Stderr = sw
 	runErr := c.Run()
 
-	
 	if ctx.Err() == context.DeadlineExceeded {
 		res.ExitCode = 124
 		res.Stderr = "[vantage] step timed out"
@@ -141,8 +126,6 @@ func RunStep(cmd *pb.RunStepCmd, emit func(seq uint64, data []byte)) *pb.StepRes
 	return res
 }
 
-
-
 func parseEnvFile(path string) map[string]string {
 	out := map[string]string{}
 	f, err := os.Open(path)

agent/internal/grpc/client.go

@@ -6,7 +6,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/mrhid6/vantage/agent/internal/grpc/pb"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/credentials/insecure"
@@ -27,8 +27,6 @@ func New(serverURL string, useTLS bool) (*Client, error) {
 	serverURL = strings.TrimPrefix(serverURL, "https://")
 	serverURL = strings.TrimPrefix(serverURL, "http://")
 
-	
-	
 	dialOpts := []grpc.DialOption{
 		grpc.WithKeepaliveParams(keepalive.ClientParameters{
 			Time:                30 * time.Second,
@@ -150,8 +148,10 @@ func (c *Client) ReportChecks(serverID, agentToken string, results []pb.CheckRes
 	return err
 }
 
-
-
 func (c *Client) CommandStream(ctx context.Context) (pb.Vantage_CommandStreamClient, error) {
 	return c.client.CommandStream(ctx)
 }
+
+func (c *Client) ProxyStream(ctx context.Context) (pb.Vantage_ProxyStreamClient, error) {
+	return c.client.ProxyStream(ctx)
+}

agent/internal/grpc/pb/vantage.pb.go

@@ -131,6 +131,32 @@ type ReportChecksResponse struct{}
 
 type ApplyUpdatesCmd struct{}
 
+type OpenProxyCmd struct {
+	ProxyId string `json:"proxy_id"`
+	Port    uint32 `json:"port"`
+}
+
+type ProxyOpen struct {
+	ServerId   string `json:"server_id"`
+	AgentToken string `json:"agent_token"`
+	ProxyId    string `json:"proxy_id"`
+}
+
+type ProxyClose struct {
+	Reason string `json:"reason,omitempty"`
+}
+
+type ProxyClientMsg struct {
+	Open  *ProxyOpen  `json:"open,omitempty"`
+	Data  []byte      `json:"data,omitempty"`
+	Close *ProxyClose `json:"close,omitempty"`
+}
+
+type ProxyServerMsg struct {
+	Data  []byte      `json:"data,omitempty"`
+	Close *ProxyClose `json:"close,omitempty"`
+}
+
 type ServerCommand struct {
 	CommandId        string               `json:"command_id"`
 	GenerateKey      *GenerateKeyCmd      `json:"generate_key,omitempty"`
@@ -139,6 +165,7 @@ type ServerCommand struct {
 	ApplyUpdates     *ApplyUpdatesCmd     `json:"apply_updates,omitempty"`
 	RunStep          *RunStepCmd          `json:"run_step,omitempty"`
 	CleanupWorkspace *CleanupWorkspaceCmd `json:"cleanup_workspace,omitempty"`
+	OpenProxy        *OpenProxyCmd        `json:"open_proxy,omitempty"`
 }
 
 
@@ -254,6 +281,51 @@ func (s *keyManagerCommandStreamServer) Recv() (*AgentMessage, error) {
 	return m, nil
 }
 
+type Vantage_ProxyStreamServer interface {
+	Send(*ProxyServerMsg) error
+	Recv() (*ProxyClientMsg, error)
+	grpc.ServerStream
+}
+
+type vantageProxyStreamServer struct {
+	grpc.ServerStream
+}
+
+func (s *vantageProxyStreamServer) Send(m *ProxyServerMsg) error {
+	return s.ServerStream.SendMsg(m)
+}
+
+func (s *vantageProxyStreamServer) Recv() (*ProxyClientMsg, error) {
+	m := new(ProxyClientMsg)
+	if err := s.ServerStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+type Vantage_ProxyStreamClient interface {
+	Send(*ProxyClientMsg) error
+	Recv() (*ProxyServerMsg, error)
+	CloseSend() error
+	grpc.ClientStream
+}
+
+type vantageProxyStreamClient struct {
+	grpc.ClientStream
+}
+
+func (c *vantageProxyStreamClient) Send(m *ProxyClientMsg) error {
+	return c.ClientStream.SendMsg(m)
+}
+
+func (c *vantageProxyStreamClient) Recv() (*ProxyServerMsg, error) {
+	m := new(ProxyServerMsg)
+	if err := c.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
 type VantageClient interface {
 	Register(ctx context.Context, in *RegisterRequest, opts ...grpc.CallOption) (*RegisterResponse, error)
 	SyncKeys(ctx context.Context, in *SyncRequest, opts ...grpc.CallOption) (*SyncResponse, error)
@@ -263,6 +335,7 @@ type VantageClient interface {
 	SyncMonitors(ctx context.Context, in *SyncMonitorsRequest, opts ...grpc.CallOption) (*SyncMonitorsResponse, error)
 	ReportChecks(ctx context.Context, in *ReportChecksRequest, opts ...grpc.CallOption) (*ReportChecksResponse, error)
 	CommandStream(ctx context.Context, opts ...grpc.CallOption) (Vantage_CommandStreamClient, error)
+	ProxyStream(ctx context.Context, opts ...grpc.CallOption) (Vantage_ProxyStreamClient, error)
 }
 
 type UnimplementedVantageServer struct{}
@@ -349,3 +422,12 @@ func (c *keyManagerClient) CommandStream(ctx context.Context, opts ...grpc.CallO
 	}
 	return &vantageCommandStreamClient{stream}, nil
 }
+
+func (c *keyManagerClient) ProxyStream(ctx context.Context, opts ...grpc.CallOption) (Vantage_ProxyStreamClient, error) {
+	desc := &grpc.StreamDesc{StreamName: "ProxyStream", ServerStreams: true, ClientStreams: true}
+	stream, err := c.cc.NewStream(ctx, desc, "/vantage.v1.Vantage/ProxyStream", opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &vantageProxyStreamClient{stream}, nil
+}

agent/internal/inventory/collect_linux.go

@@ -1,5 +1,3 @@
-
-
 package inventory
 
 import (
@@ -10,7 +8,7 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/mrhid6/vantage/agent/internal/grpc/pb"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 )
 
 func collect(r *pb.InventoryReport, includeStatic bool) {
@@ -42,11 +40,11 @@ func cpuSample() (idle, total uint64) {
 	defer f.Close()
 	sc := bufio.NewScanner(f)
 	if sc.Scan() {
-		fields := strings.Fields(sc.Text()) 
+		fields := strings.Fields(sc.Text())
 		for i, v := range fields[1:] {
 			n, _ := strconv.ParseUint(v, 10, 64)
 			total += n
-			if i == 3 { 
+			if i == 3 {
 				idle = n
 			}
 		}
@@ -146,11 +144,14 @@ func partitions() []pb.PartitionReport {
 		if syscall.Statfs(fields[1], &st) != nil {
 			continue
 		}
-		total := st.Blocks * uint64(st.Bsize)
-		free := st.Bavail * uint64(st.Bsize)
+		bsize := uint64(st.Bsize)
+		total := st.Blocks * bsize
+		// Bfree, not Bavail: the difference is the root-reserved 5% on ext4,
+		// which is not used space. df counts it the same way.
+		used := (st.Blocks - st.Bfree) * bsize
 		out = append(out, pb.PartitionReport{
 			Device: fields[0], Mountpoint: fields[1], Fstype: fields[2],
-			TotalBytes: total, UsedBytes: total - free,
+			TotalBytes: total, UsedBytes: used,
 		})
 	}
 	return out

agent/internal/inventory/collect_other.go

@@ -1,12 +1,13 @@
-//go:build !linux
+//go:build !linux && !windows
 
-// Inventory collection is Linux-only. This no-op stands in everywhere else.
+// Inventory collection has Linux and Windows implementations. This no-op stands
+// in everywhere else.
 //
 // The build constraint above is load-bearing: "_other" is not a GOOS suffix, so
 // without it this file compiles on Linux too and collides with collect_linux.go.
 package inventory
 
-import "github.com/mrhid6/vantage/agent/internal/grpc/pb"
+import "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 
 
 func collect(r *pb.InventoryReport, includeStatic bool) {}

agent/internal/inventory/collect_windows.go

@@ -0,0 +1,183 @@
+package inventory
+
+import (
+	"fmt"
+	"runtime"
+	"time"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+	"golang.org/x/sys/windows/registry"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
+)
+
+var (
+	kernel32           = windows.NewLazySystemDLL("kernel32.dll")
+	procGetSystemTimes = kernel32.NewProc("GetSystemTimes")
+	// x/sys/windows exposes neither of these two, so they are bound by hand.
+	procGlobalMemoryStatusEx = kernel32.NewProc("GlobalMemoryStatusEx")
+)
+
+func collect(r *pb.InventoryReport, includeStatic bool) {
+	r.CPU.UsagePct = cpuUsage()
+	// Windows has no load average. Left at zero; the UI already treats it as
+	// optional because it is omitempty on the wire.
+
+	m := memoryStatus()
+	if m.TotalPhys > m.AvailPhys {
+		r.Memory.UsedBytes = m.TotalPhys - m.AvailPhys
+	}
+	// TotalPageFile is the commit limit — physical memory plus the pagefile —
+	// so the pagefile alone is the difference.
+	swapTotal := sub(m.TotalPageFile, m.TotalPhys)
+	swapUsed := sub(sub(m.TotalPageFile, m.AvailPageFile), sub(m.TotalPhys, m.AvailPhys))
+	if swapUsed > swapTotal {
+		swapUsed = swapTotal
+	}
+	r.SwapUsed = swapUsed
+
+	if includeStatic {
+		r.Memory.TotalBytes = m.TotalPhys
+		r.SwapTotal = swapTotal
+		r.CPU.Model, r.CPU.Cores = cpuStatic()
+		r.Kernel = kernel()
+		r.Partitions = partitions()
+	}
+}
+
+func sub(a, b uint64) uint64 {
+	if a > b {
+		return a - b
+	}
+	return 0
+}
+
+type memoryStatusEx struct {
+	Length               uint32
+	MemoryLoad           uint32
+	TotalPhys            uint64
+	AvailPhys            uint64
+	TotalPageFile        uint64
+	AvailPageFile        uint64
+	TotalVirtual         uint64
+	AvailVirtual         uint64
+	AvailExtendedVirtual uint64
+}
+
+func memoryStatus() memoryStatusEx {
+	var m memoryStatusEx
+	m.Length = uint32(unsafe.Sizeof(m))
+	r, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(&m)))
+	if r == 0 {
+		return memoryStatusEx{}
+	}
+	return m
+}
+
+func systemTimes() (idle, total uint64, ok bool) {
+	var idleFT, kernelFT, userFT windows.Filetime
+	r, _, _ := procGetSystemTimes.Call(
+		uintptr(unsafe.Pointer(&idleFT)),
+		uintptr(unsafe.Pointer(&kernelFT)),
+		uintptr(unsafe.Pointer(&userFT)),
+	)
+	if r == 0 {
+		return 0, 0, false
+	}
+	ft := func(f windows.Filetime) uint64 {
+		return uint64(f.HighDateTime)<<32 | uint64(f.LowDateTime)
+	}
+	// Kernel time already includes idle time, so kernel+user is the whole.
+	return ft(idleFT), ft(kernelFT) + ft(userFT), true
+}
+
+func cpuUsage() float64 {
+	i1, t1, ok := systemTimes()
+	if !ok {
+		return 0
+	}
+	time.Sleep(100 * time.Millisecond)
+	i2, t2, ok := systemTimes()
+	if !ok || t2 <= t1 {
+		return 0
+	}
+	return (1 - float64(i2-i1)/float64(t2-t1)) * 100
+}
+
+func cpuStatic() (model string, cores int) {
+	cores = runtime.NumCPU()
+	k, err := registry.OpenKey(registry.LOCAL_MACHINE,
+		`HARDWARE\DESCRIPTION\System\CentralProcessor\0`, registry.QUERY_VALUE)
+	if err != nil {
+		return
+	}
+	defer k.Close()
+	if s, _, err := k.GetStringValue("ProcessorNameString"); err == nil {
+		model = s
+	}
+	return
+}
+
+func kernel() string {
+	v := windows.RtlGetVersion()
+	return fmt.Sprintf("%d.%d.%d", v.MajorVersion, v.MinorVersion, v.BuildNumber)
+}
+
+func partitions() []pb.PartitionReport {
+	buf := make([]uint16, 256)
+	n, err := windows.GetLogicalDriveStrings(uint32(len(buf)), &buf[0])
+	if err != nil || n == 0 {
+		return nil
+	}
+
+	var out []pb.PartitionReport
+	for _, root := range splitNullStrings(buf[:n]) {
+		rootPtr, err := windows.UTF16PtrFromString(root)
+		if err != nil {
+			continue
+		}
+		// Fixed disks only: network shares can hang, and removable drives
+		// would appear and vanish between snapshots.
+		if windows.GetDriveType(rootPtr) != windows.DRIVE_FIXED {
+			continue
+		}
+
+		var free, total, totalFree uint64
+		if err := windows.GetDiskFreeSpaceEx(rootPtr, &free, &total, &totalFree); err != nil {
+			continue
+		}
+
+		fsBuf := make([]uint16, 32)
+		var fstype string
+		if err := windows.GetVolumeInformation(rootPtr, nil, 0, nil, nil, nil, &fsBuf[0], uint32(len(fsBuf))); err == nil {
+			fstype = windows.UTF16ToString(fsBuf)
+		}
+
+		out = append(out, pb.PartitionReport{
+			Device:     root,
+			Mountpoint: root,
+			Fstype:     fstype,
+			TotalBytes: total,
+			UsedBytes:  total - totalFree,
+		})
+	}
+	return out
+}
+
+// splitNullStrings splits the NUL-separated, double-NUL-terminated block that
+// GetLogicalDriveStrings writes.
+func splitNullStrings(b []uint16) []string {
+	var out []string
+	start := 0
+	for i, c := range b {
+		if c != 0 {
+			continue
+		}
+		if i > start {
+			out = append(out, windows.UTF16ToString(b[start:i]))
+		}
+		start = i + 1
+	}
+	return out
+}

agent/internal/inventory/inventory.go

@@ -1,8 +1,6 @@
 package inventory
 
-import "github.com/mrhid6/vantage/agent/internal/grpc/pb"
-
-
+import "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 
 func Collect(includeStatic bool) *pb.InventoryReport {
 	r := &pb.InventoryReport{IncludeStatic: includeStatic, CPU: &pb.CPUReport{}, Memory: &pb.MemReport{}}

agent/internal/monitors/monitors.go

@@ -1,6 +1,3 @@
-
-
-
 package monitors
 
 import (
@@ -9,13 +6,12 @@ import (
 	"sync"
 	"time"
 
-	"github.com/mrhid6/vantage/agent/internal/checker"
-	"github.com/mrhid6/vantage/agent/internal/config"
-	grpcclient "github.com/mrhid6/vantage/agent/internal/grpc"
-	"github.com/mrhid6/vantage/agent/internal/grpc/pb"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/checker"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/config"
+	grpcclient "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
 )
 
-
 const syncInterval = 30 * time.Second
 
 type runner struct {
@@ -23,13 +19,10 @@ type runner struct {
 	cancel      context.CancelFunc
 }
 
-
 func Run(ctx context.Context, cfg *config.Config) {
 	active := map[string]*runner{}
 	var mu sync.Mutex
 
-	
-	
 	results := make(chan pb.CheckResult, 64)
 	go reporter(ctx, cfg, results)
 
@@ -128,7 +121,6 @@ func runSpec(ctx context.Context, s pb.MonitorSpec, out chan<- pb.CheckResult) {
 	}
 }
 
-
 func reporter(ctx context.Context, cfg *config.Config, in <-chan pb.CheckResult) {
 	t := time.NewTicker(5 * time.Second)
 	defer t.Stop()

agent/internal/proxy/proxy.go

@@ -0,0 +1,114 @@
+// Package agentproxy relays a single TCP connection between a local service and
+// the control plane, so a control plane that cannot route to this host's network
+// can still open a console session.
+//
+// The dial host is hardcoded to loopback. The control plane supplies only a
+// port, and nothing in this package can be made to dial anywhere else.
+package agentproxy
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"strconv"
+	"time"
+
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
+)
+
+const (
+	loopbackHost = "127.0.0.1"
+	chunkSize    = 32 * 1024
+	dialTimeout  = 10 * time.Second
+)
+
+// Stream is the agent's half of a ProxyStream.
+type Stream interface {
+	Send(*pb.ProxyClientMsg) error
+	Recv() (*pb.ProxyServerMsg, error)
+	CloseSend() error
+}
+
+// Open dials the local port, announces itself on the stream, and relays until
+// either side ends. A refused dial is reported as an explicit close so the
+// operator sees a reason rather than a hang.
+func Open(stream Stream, serverID, agentToken, proxyID string, port uint32) error {
+	conn, dialErr := net.DialTimeout("tcp",
+		net.JoinHostPort(loopbackHost, strconv.Itoa(int(port))), dialTimeout)
+
+	if err := stream.Send(&pb.ProxyClientMsg{Open: &pb.ProxyOpen{
+		ServerId:   serverID,
+		AgentToken: agentToken,
+		ProxyId:    proxyID,
+	}}); err != nil {
+		if conn != nil {
+			_ = conn.Close()
+		}
+		return fmt.Errorf("send open: %w", err)
+	}
+
+	if dialErr != nil {
+		_ = stream.Send(&pb.ProxyClientMsg{Close: &pb.ProxyClose{
+			Reason: "dial_refused: " + dialErr.Error(),
+		}})
+		_ = stream.CloseSend()
+		return fmt.Errorf("dial 127.0.0.1:%d: %w", port, dialErr)
+	}
+	defer conn.Close()
+
+	return relay(conn, stream)
+}
+
+func relay(conn net.Conn, stream Stream) error {
+	errCh := make(chan error, 2)
+
+	// local service -> control plane
+	go func() {
+		buf := make([]byte, chunkSize)
+		for {
+			n, err := conn.Read(buf)
+			if n > 0 {
+				chunk := make([]byte, n)
+				copy(chunk, buf[:n])
+				if sendErr := stream.Send(&pb.ProxyClientMsg{Data: chunk}); sendErr != nil {
+					errCh <- sendErr
+					return
+				}
+			}
+			if err != nil {
+				errCh <- err
+				return
+			}
+		}
+	}()
+
+	// control plane -> local service
+	go func() {
+		for {
+			msg, err := stream.Recv()
+			if err != nil {
+				errCh <- err
+				return
+			}
+			if msg.Close != nil {
+				errCh <- fmt.Errorf("server closed relay: %s", msg.Close.Reason)
+				return
+			}
+			if len(msg.Data) > 0 {
+				if _, err := conn.Write(msg.Data); err != nil {
+					errCh <- err
+					return
+				}
+			}
+		}
+	}()
+
+	err := <-errCh
+	_ = conn.Close()
+	_ = stream.CloseSend()
+	if errors.Is(err, io.EOF) {
+		return nil
+	}
+	return err
+}

agent/internal/sync/sync.go

@@ -17,14 +17,15 @@ import (
 	"sync"
 	"time"
 
-	"github.com/mrhid6/vantage/agent/internal/config"
-	agentexec "github.com/mrhid6/vantage/agent/internal/exec"
-	grpcclient "github.com/mrhid6/vantage/agent/internal/grpc"
-	"github.com/mrhid6/vantage/agent/internal/grpc/pb"
-	"github.com/mrhid6/vantage/agent/internal/inventory"
-	"github.com/mrhid6/vantage/agent/internal/keys"
-	"github.com/mrhid6/vantage/agent/internal/monitors"
-	"github.com/mrhid6/vantage/agent/internal/updates"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/config"
+	agentexec "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/exec"
+	grpcclient "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/grpc/pb"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/inventory"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/keys"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/monitors"
+	agentproxy "gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/proxy"
+	"gitea.hostxtra.co.uk/mrhid6/vantage/agent/internal/updates"
 )
 
 func Run(ctx context.Context, cfg *config.Config, version string) error {
@@ -34,7 +35,6 @@ func Run(ctx context.Context, cfg *config.Config, version string) error {
 	}
 	defer client.Close()
 
-	
 	if cfg.PreRegToken != "" {
 		log.Println("registering with server...")
 		hostname, _ := os.Hostname()
@@ -64,22 +64,17 @@ func Run(ctx context.Context, cfg *config.Config, version string) error {
 		return fmt.Errorf("no agent token available registration required")
 	}
 
-	
 	go runCommandStream(ctx, cfg)
 
-	
 	go runUpdateCheck(ctx, cfg)
 
-	
 	go runInventory(ctx, cfg)
 
-	
 	go monitors.Run(ctx, cfg)
 
 	ticker := time.NewTicker(cfg.PollInterval)
 	defer ticker.Stop()
 
-	
 	if err := poll(client, cfg, version); err != nil {
 		log.Printf("poll error: %v", err)
 	}
@@ -123,8 +118,6 @@ func poll(client *grpcclient.Client, cfg *config.Config, version string) error {
 	return nil
 }
 
-
-
 func runCommandStream(ctx context.Context, cfg *config.Config) {
 	backoff := time.Second
 	const maxBackoff = 2 * time.Minute
@@ -177,9 +170,6 @@ func connectAndHandleStream(ctx context.Context, cfg *config.Config) error {
 
 	log.Println("command stream connected")
 
-	
-	
-	
 	var sendMu sync.Mutex
 	send := func(msg *pb.AgentMessage) error {
 		sendMu.Lock()
@@ -208,6 +198,9 @@ func connectAndHandleStream(ctx context.Context, cfg *config.Config) error {
 		if cmd.CleanupWorkspace != nil {
 			go handleCleanupWorkspace(cmd)
 		}
+		if cmd.OpenProxy != nil {
+			go handleOpenProxy(ctx, cfg, cmd.OpenProxy)
+		}
 		if cmd.RunStep != nil {
 			go func(rc *pb.RunStepCmd, cid string) {
 				emit := func(seq uint64, data []byte) {
@@ -219,7 +212,7 @@ func connectAndHandleStream(ctx context.Context, cfg *config.Config) error {
 				}
 				res := agentexec.RunStep(rc, emit)
 				res.CommandId = cid
-				
+
 				_ = send(&pb.AgentMessage{
 					ServerId:   cfg.ServerID,
 					AgentToken: cfg.AgentToken,
@@ -279,8 +272,6 @@ func runUpdateCheck(ctx context.Context, cfg *config.Config) {
 	}
 }
 
-
-
 func runInventory(ctx context.Context, cfg *config.Config) {
 	client, err := grpcclient.New(cfg.ServerURL, cfg.TLS)
 	if err != nil {
@@ -298,7 +289,7 @@ func runInventory(ctx context.Context, cfg *config.Config) {
 		}
 	}
 
-	report(true) 
+	report(true)
 	ticker := time.NewTicker(30 * time.Second)
 	defer ticker.Stop()
 	tick := 0
@@ -308,7 +299,7 @@ func runInventory(ctx context.Context, cfg *config.Config) {
 			return
 		case <-ticker.C:
 			tick++
-			report(tick%30 == 0) 
+			report(tick%30 == 0)
 		}
 	}
 }
@@ -321,7 +312,6 @@ func handleApplyUpdates(cfg *config.Config, cmd *pb.ServerCommand) {
 	}
 	log.Printf("OS updates applied successfully (cmd=%s)", cmd.CommandId)
 
-	
 	client, err := grpcclient.New(cfg.ServerURL, cfg.TLS)
 	if err != nil {
 		return
@@ -340,6 +330,29 @@ func handleCleanupWorkspace(cmd *pb.ServerCommand) {
 	log.Printf("removed run workspace %s (cmd=%s)", dir, cmd.CommandId)
 }
 
+// handleOpenProxy relays one console connection. It uses its own gRPC
+// connection so console traffic never shares a stream with commands, key sync
+// or workflow output.
+func handleOpenProxy(ctx context.Context, cfg *config.Config, cmd *pb.OpenProxyCmd) {
+	client, err := grpcclient.New(cfg.ServerURL, cfg.TLS)
+	if err != nil {
+		log.Printf("proxy %s: dial control plane: %v", cmd.ProxyId, err)
+		return
+	}
+	defer client.Close()
+
+	stream, err := client.ProxyStream(ctx)
+	if err != nil {
+		log.Printf("proxy %s: open stream: %v", cmd.ProxyId, err)
+		return
+	}
+
+	log.Printf("proxy %s: relaying 127.0.0.1:%d", cmd.ProxyId, cmd.Port)
+	if err := agentproxy.Open(stream, cfg.ServerID, cfg.AgentToken, cmd.ProxyId, cmd.Port); err != nil {
+		log.Printf("proxy %s: %v", cmd.ProxyId, err)
+	}
+}
+
 func handleDeleteKey(cmd *pb.ServerCommand) {
 	label := cmd.DeleteKey.Label
 	keyPath := fmt.Sprintf("/root/.ssh/vantage_%s", strings.ReplaceAll(label, " ", "_"))
@@ -363,21 +376,19 @@ func handleUpdateAgent(cmd *pb.ServerCommand) {
 	}
 
 	u := cmd.UpdateAgent
-	arch := runtime.GOARCH 
+	arch := runtime.GOARCH
 	tag := "agent%2Fv" + u.Version
 	binaryURL := fmt.Sprintf("%s/mrhid6/vantage/releases/download/%s/vantage-agent-linux-%s", u.GiteaBaseURL, tag, arch)
 	checksumURL := fmt.Sprintf("%s/mrhid6/vantage/releases/download/%s/checksums.txt", u.GiteaBaseURL, tag)
 
 	log.Printf("updating agent to v%s from %s (cmd=%s)", u.Version, u.GiteaBaseURL, cmd.CommandId)
 
-	
 	tmpBin := "/tmp/vantage-agent-update"
 	if err := downloadFile(binaryURL, tmpBin); err != nil {
 		log.Printf("update download failed (cmd=%s): %v", cmd.CommandId, err)
 		return
 	}
 
-	
 	checksumData, err := httpGetBytes(checksumURL)
 	if err != nil {
 		log.Printf("update checksum fetch failed (cmd=%s): %v", cmd.CommandId, err)
@@ -402,11 +413,6 @@ func handleUpdateAgent(cmd *pb.ServerCommand) {
 	exec.Command("systemctl", "restart", "vantage-agent").Run()
 }
 
-
-
-
-
-
 func handleUpdateAgentWindows(cmd *pb.ServerCommand) {
 	u := cmd.UpdateAgent
 	tag := "agent%2Fv" + u.Version
@@ -433,18 +439,59 @@ func handleUpdateAgentWindows(cmd *pb.ServerCommand) {
 	}
 
 	logPath := filepath.Join(os.TempDir(), "vantage-agent-msi.log")
-	log.Printf("launching msiexec for upgrade to v%s (cmd=%s)", u.Version, cmd.CommandId)
-	
-	
-	up := exec.Command("cmd", "/c", "start", "", "/wait", "msiexec", "/i", msiPath, "/qn", "/norestart", "/l*v", logPath)
-	if err := up.Start(); err != nil {
+
+	// The MSI stops the vantage-agent service as part of the upgrade. Anything
+	// descended from this process is killed with it, so msiexec must not be a
+	// child: run it from a scheduled task, which is parented to the Task
+	// Scheduler service instead.
+	if err := launchDetachedUpdate(msiPath, logPath, cmd.CommandId); err != nil {
 		log.Printf("failed to launch msiexec (cmd=%s): %v", cmd.CommandId, err)
 		return
 	}
+	log.Printf("scheduled msiexec for upgrade to v%s (cmd=%s)", u.Version, cmd.CommandId)
+}
+
+const updateTaskName = "VantageAgentUpdate"
+
+func launchDetachedUpdate(msiPath, logPath, commandID string) error {
+	scriptPath := filepath.Join(os.TempDir(), "vantage-agent-update.cmd")
+	script := fmt.Sprintf("@echo off\r\n"+
+		"timeout /t 5 /nobreak >nul\r\n"+
+		"msiexec /i \"%s\" /qn /norestart /l*v \"%s\"\r\n"+
+		"schtasks /delete /tn %s /f >nul 2>&1\r\n"+
+		"del /f /q \"%s\" >nul 2>&1\r\n"+
+		"(goto) 2>nul & del /f /q \"%%~f0\"\r\n",
+		msiPath, logPath, updateTaskName, msiPath)
+	if err := os.WriteFile(scriptPath, []byte(script), 0o600); err != nil {
+		return fmt.Errorf("write update script: %w", err)
+	}
+
+	// Stale task from a previous attempt would make /create fail even with /f
+	// if it is still running, so tear it down first and ignore the result.
+	exec.Command("schtasks", "/end", "/tn", updateTaskName).Run()
+	exec.Command("schtasks", "/delete", "/tn", updateTaskName, "/f").Run()
+
+	create := exec.Command("schtasks", "/create",
+		"/tn", updateTaskName,
+		"/tr", `"`+scriptPath+`"`,
+		"/sc", "once",
+		// Already in the past: the task never fires on its own, only via /run.
+		"/st", "00:00",
+		"/ru", "SYSTEM",
+		"/rl", "HIGHEST",
+		"/f")
+	if out, err := create.CombinedOutput(); err != nil {
+		return fmt.Errorf("schtasks create: %v: %s", err, strings.TrimSpace(string(out)))
+	}
+
+	if out, err := exec.Command("schtasks", "/run", "/tn", updateTaskName).CombinedOutput(); err != nil {
+		return fmt.Errorf("schtasks run: %v: %s", err, strings.TrimSpace(string(out)))
+	}
+	return nil
 }
 
 func downloadFile(url, dest string) error {
-	resp, err := http.Get(url) 
+	resp, err := http.Get(url)
 	if err != nil {
 		return err
 	}
@@ -462,7 +509,7 @@ func downloadFile(url, dest string) error {
 }
 
 func httpGetBytes(url string) ([]byte, error) {
-	resp, err := http.Get(url) 
+	resp, err := http.Get(url)
 	if err != nil {
 		return nil, err
 	}
@@ -554,7 +601,6 @@ func localIP() string {
 	return ""
 }
 
-
 func GenerateAndUpload(cfg *config.Config, label string) error {
 	client, err := grpcclient.New(cfg.ServerURL, cfg.TLS)
 	if err != nil {

claude.md

@@ -61,7 +61,7 @@ vantage/
 │       ├── grpc/                    # gRPC server + generated pb
 │       ├── models/                  # MongoDB documents
 │       ├── monitorsched/            # server-side monitor scheduler
-│       ├── notify/                  # smtp, http, templating, dispatch
+│       ├── notify/                  # channel dispatch: http, discord, slack, telegram, smtp
 │       └── services/                # business logic + migrations
 ├── web/                             # the application UI (authenticated)
 │   ├── app/(app)/                   # authed routes
@@ -77,7 +77,6 @@ vantage/
 │   ├── cmd/main.go
 │   └── internal/
 │       ├── api/                     # contact
-│       ├── mail/                    # SMTP
 │       └── store/                   # Mongo connect helper
 ├── admin/                           # licensing authority: the only signer
 │   ├── cmd/main.go                  # boot: two Mongo connections, reconciler, HTTP
@@ -88,14 +87,20 @@ vantage/
 │       ├── inject/                  # licence write path into the control plane
 │       ├── cloudprov/               # instance write path: creates instances + owners
 │       ├── licensing/               # Issue, LinkInstance, Relink
-│       ├── mail/                    # verification and licence delivery
+│       ├── mail/                    # admin's boot-time shared/mail Sender
 │       └── models/                  # accounts, instances, licences, plans
 ├── adminsite/                       # staff + customer console (vantage-hq)
 │   ├── app/(customer)/              # overview, instance, link, billing
 │   ├── app/(staff)/staff/           # operations, accounts, licences, plans, audit
 │   ├── components/                  # AppBar, PageHeader, PageFrame, InstanceRecord
 │   └── lib/                         # api client, session guards, formatters
+├── docsite/                         # user documentation (Docusaurus, static)
+│   ├── docs/                        # getting-started, vantage, hq, reference, operations
+│   ├── src/css/custom.css           # site/'s tokens, copied, mapped onto --ifm-*
+│   ├── sidebars.ts                  # authored by hand, not autogenerated
+│   └── nginx.conf                   # serves the build under /docs
 ├── shared/                          # imported by server, sitesvc and admin
+│   ├── mail/                        # the one email system: transport + tmpl templates
 │   ├── license/                     # payload, sign, verify, trusted keys, plans
 │   ├── models/                      # Instance, User, Settings
 │   └── cmd/lkctl/                   # issue and inspect licences by hand
@@ -117,7 +122,7 @@ Upload a public key, assign it per server, revoke softly. The agent diffs desire
 
 A library of reusable **steps** (bash or PowerShell scripts with declared inputs, outputs, and secret refs) composed into **workflows** targeting a set of servers. Running one snapshots the resolved steps into a `WorkflowRun`, then dispatches `RunStepCmd` over the agent command stream. Step stdout/stderr streams back as `StepOutputChunk` and is written to a log file on disk; the UI streams it live. Steps support `on_failure: stop|continue|retry`, per-run env passed between steps via `output_env`, and a per-run workspace directory the agent cleans up at the end.
 
-Default steps are seeded per org at boot (`SeedDefaultSteps`). Logs are swept by retention (`workflow_log_retention_days`; nil = 30 days, 0 = forever).
+Default steps are seeded per org at boot (`SeedDefaultSteps`) from `VANTAGE_DEFAULT_STEPS_DIR`, which `server/Dockerfile` bakes to `/opt/default-steps` from the repo's `default_steps/`. Deliberately **not** under `/data` — that is a bind mount, so the library would be editable from the host. Adding a step there means committing a file and rebuilding, which is why `default_steps/` is in the `server` rebuild trigger. **Steps with `source: "default"` are read-only**: `UpdateStep`/`DeleteStep` refuse with `ErrDefaultStep` (409), because seeding rewrites them on every boot, so an edit would silently revert and a delete would come back. `web/` mirrors this — the step modal opens read-only, Delete is hidden, and the designer's per-step script override is `readOnly` for a default library step — but as elsewhere, the API is the boundary and the UI is the courtesy. Seeding writes straight to the collection rather than through `UpdateStep`, so the guard does not lock out the seeder. Logs are swept by retention (`workflow_log_retention_days`; nil = 30 days, 0 = forever).
 
 ### Monitors
 
@@ -133,7 +138,22 @@ Key/value pairs grouped by name, encrypted at rest with AES-256-GCM. Consumed tw
 
 ### Browser console
 
-`POST /api/console/connect` mints a one-time session token; `GET /api/console/tunnel` upgrades to a WebSocket and proxies to **guacd** (Apache Guacamole daemon) using `github.com/wwt/guac`. SSH connections authenticate with a stored private key; RDP/VNC credentials are encrypted, single-use, and consumed when the tunnel opens.
+`POST /api/console/connect` mints a one-time session token; `GET /api/console/tunnel`
+upgrades to a WebSocket and proxies to **guacd** using `github.com/wwt/guac`.
+
+guacd never dials the managed server. The server binds a single-use ephemeral
+listener, pushes `OpenProxyCmd` down the agent's command stream, and the agent
+opens a `ProxyStream` and relays the connection from its own **`127.0.0.1`** —
+the host is hardcoded agent-side, so the control plane can name only a port.
+This is what makes the console work on Vantage Cloud, where the customer's
+server is behind NAT on a private address. It also means the console now
+**requires a live agent** on every deployment: `consoleConnect` answers 409
+`agent_offline` rather than hanging.
+
+SSH connections authenticate with a stored private key; RDP/VNC credentials are
+encrypted, single-use, and consumed when the tunnel opens. None of them reach
+the agent — the session is negotiated end-to-end between guacd and the target
+daemon, so the agent relays bytes it cannot read.
 
 ### Inventory and OS updates
 
@@ -147,19 +167,25 @@ Agents report CPU/memory/swap/partitions/kernel — metrics every 30s, full stat
 
 `site/` is a separate Next.js app built exactly like `web/` — `output: "standalone"`, run by Node in a `node:26-alpine` image, listening on `3000` and published as `3003`. The contact form posts to `sitesvc`; account signup posts to `admin` (`NEXT_PUBLIC_ADMIN_API_URL`), which creates an HQ account, not an org — the control plane is not touched until the customer later creates a cloud instance from the portal.
 
-`adminsite/` is built the same way and published as `3004`, served at **`vantage-hq.hostxtra.co.uk`** — deliberately *outside* `*.vantage.hostxtra.co.uk`, because that namespace is per-tenant instance subdomains and `APP_ROOT_LABEL` resolves an org from the label before `vantage`. It shares `site/`'s design tokens verbatim (see Frontend below) and, unlike `web/`, does **not** proxy through a Next rewrite: the browser calls `admin` directly, so `ADMIN_API_URL` must be browser-reachable. Authenticated requests work cross-origin only because both hosts share the registrable domain `hostxtra.co.uk`, which keeps `admin_session`'s `SameSite=Lax` cookie in play.
+`adminsite/` is built the same way and published as `3004`, served at **`vantage-hq.hostxtra.co.uk`** — deliberately _outside_ `*.vantage.hostxtra.co.uk`, because that namespace is per-tenant instance subdomains and `APP_ROOT_LABEL` resolves an org from the label before `vantage`. It shares `site/`'s design tokens verbatim (see Frontend below) and, unlike `web/`, does **not** proxy through a Next rewrite: the browser calls `admin` directly, so `ADMIN_API_URL` must be browser-reachable. Authenticated requests work cross-origin only because both hosts share the registrable domain `hostxtra.co.uk`, which keeps `admin_session`'s `SameSite=Lax` cookie in play.
 
 **`ADMIN_ORIGIN` must list every browser origin that calls admin — currently two**: `https://vantage-hq.hostxtra.co.uk` for the console, and `https://vantage.hostxtra.co.uk` because the marketing site's `/start` form posts account signups to admin directly. It is comma-separated. A missing origin does not produce a 403: `cors()` simply omits the `Access-Control-Allow-Origin` header and still answers the preflight `204`, so the browser blocks the request and **admin logs nothing at all**. Symptom is a CORS preflight failure on an endpoint that works fine under curl.
 
 `sitesvc/` (port `8082`) now owns only the contact flow:
 
-| Form    | Endpoint             | Effect                                                                  |
-| ------- | --------------------- | ----------------------------------------------------------------------- |
-| Contact | `POST /api/contact`   | Emails `support@hostxtra.co.uk`, `Reply-To` the sender. Nothing stored. |
+| Form    | Endpoint            | Effect                                                                  |
+| ------- | ------------------- | ----------------------------------------------------------------------- |
+| Contact | `POST /api/contact` | Emails `support@hostxtra.co.uk`, `Reply-To` the sender. Nothing stored. |
 
 Account signup lives in `admin` instead (`POST /auth/signup`, `GET /auth/verify?token=…`) — see Signup and verification below.
 
-`site`, `sitesvc` and `admin` are deliberately **excluded from the self-hosted deployment**: `deploy/docker-compose.yml` mentions none of them, and they live in `deploy/docker-compose.site.yml` instead.
+`site`, `sitesvc`, `admin` and `docsite` are deliberately **excluded from the self-hosted deployment**: `deploy/docker-compose.yml` mentions none of them, and they live in `deploy/docker-compose.site.yml` instead.
+
+### Documentation site
+
+`docsite/` is the user-facing documentation — Docusaurus 3 in docs-only mode (`routeBasePath: "/"`, no blog), one version tracking `main`, search indexed at build time by `@easyops-cn/docusaurus-search-local` so nothing external is keyed or called. It documents the **product**, not the codebase: this file remains the contributor's map, and the two are allowed to differ in altitude but not in fact. Five sections — Getting started, Vantage, Vantage HQ, Reference, Operations — with `sidebars.ts` authored by hand so ordering is a decision rather than a filename accident.
+
+Unlike the three Next apps it builds to static files, so its runtime stage is `nginx:alpine-slim` rather than Node, and it listens on `80`. See the compose note below for the `/docs` prefix, which is the one thing about it that is easy to get wrong.
 
 ```bash
 # self-hosted install — no marketing site, no sitesvc
@@ -191,6 +217,37 @@ person is later granted. `GET /auth/verify` therefore peeks before it consumes:
 a token belonging to a passwordless row answers `{"needs_password":true}` and is
 left unspent.
 
+### Email
+
+`shared/mail` is the only email system. It owns the SMTP conversation, the RFC
+5322 envelope and the look of every message; `server`, `admin` and `sitesvc`
+each import it and none of them builds a subject line, a MIME part or a colour.
+Before this existed the transport was copied three times, and the copies had
+already diverged once — the 465-implicit-TLS fix landed in one of them while
+the others silently delivered nothing.
+
+`Sender` is a value, not a singleton: `server/internal/notify` builds one per
+notification channel from the channel document in Mongo, while `sitesvc` builds
+one at boot and `admin` holds one in `admin/internal/mail.Default`, alongside
+its other boot-time singletons. Callers only ever see typed methods —
+`SendVerification`, `SendExpiring`, `SendMonitorAlert`, `SendEnquiry` and the
+rest, grouped by owner into `account.go`, `licence.go`, `billing.go`,
+`monitor.go` and `contact.go`.
+
+Every message is `multipart/alternative`, so each one is two templates:
+`templates/<name>.html.tmpl` and `.txt.tmpl`, embedded with `go:embed`. They
+define `subject`, `title`, `pill` and `body`; `layout.html.tmpl` and
+`layout.txt.tmpl` provide the chrome and the helper templates (`p`, `lead`,
+`button`, `well`, `note`, `rows`, `chip`) that the bodies compose. One template
+set is parsed per message rather than one big set, because every message
+defines those same four names. **`subject` is defined in the txt file only** —
+`html/template` would escape an ampersand in an instance name and mail clients
+show subjects verbatim.
+
+`shared/mail/render_test.go` renders all of them and fails if a template exists
+that no case covers, which is the only thing standing between a mistyped field
+and a boot-time panic — the templates are parsed in `init()`.
+
 ### Shared provisioning
 
 `shared/provision` (`instance.go`, `slug.go`, `user.go`) holds the slug rules, reserved names and instance/user creation logic that both `server` and `admin/internal/cloudprov` need, so there is no longer a second copy to drift: `cloudprov.CreateInstance` calls straight into it to create a control-plane instance and its owner from a customer request.
@@ -203,7 +260,7 @@ instance authenticates it exactly as it authenticates anyone else, with **no
 runtime dependency on admin**. Revoking deletes that row — the control plane has
 no disabled state, and a row that exists is a row that can sign in.
 
-`instance_members` in admin's database is only admin's *index* of those
+`instance_members` in admin's database is only admin's _index_ of those
 projections; the control-plane row is the access. That is why a failed
 `instance_members` insert unwinds the projection, and why the boot backfill can
 rebuild the index from the control plane but never the other way round.
@@ -235,7 +292,7 @@ password-change endpoint at all, so there is no competing writer for the hash.
 - **Host/org guard** — `APP_ROOT_LABEL` (default `vantage`) defines the app root label. A request to `<slug>.vantage.<tld>` resolves that org from the slug and rejects sessions belonging to a different one. Org lookups are cached for 60s.
 
 Unique indexes are a **security property**, not an optimisation. `users` is
-unique on `(instance_id, email)` — one address is one user *within* an instance,
+unique on `(instance_id, email)` — one address is one user _within_ an instance,
 and the same address may hold a user in several instances, because an account's
 people are projected into each instance they are granted. This is sufficient only
 because **every lookup by email is scoped by instance**; there is deliberately no
@@ -312,6 +369,8 @@ org          GET,POST /org/users · PUT /org/users/:id/role · DELETE /org/users
 
 `POST /license` is also in `licenceExemptPaths`: pasting a valid licence has to work while the current one is expired, because it is the way out of degraded mode.
 
+Free exists in both deployments, so it is no longer cloud-only by construction. The one-Free-per-account rule is enforced per account **and deployment**, in `licensing.checkFreeLimit` and in `createInstance`'s friendly pre-check — the two must stay scoped identically, because a pre-check stricter than the issuer refuses what would have worked. A self-hosted Free licence is claimed with `POST /api/instances/:id/claim-free` after the install is linked; the metered server count and per-instance feature toggles come from the instance's `entitlement`, which a licence snapshots at issue time (see the `catalogue`/`entitlements` note under MongoDB Collections).
+
 ---
 
 ## Admin REST API (`admin`, :8083)
@@ -325,15 +384,23 @@ POST /auth/staff/login   /auth/login  /auth/logout
 POST /auth/signup                              # self-hosted only; honeypot + rate limited
 GET  /auth/verify?token=…
 POST /auth/accept-invite                       # an invitee sets their own password
+POST /api/paddle/webhook                       # Paddle events; signature-verified, idempotent, no session
 ```
 
 Customer-session (`/api`), every instance resolved through `ownedInstance`:
 
 ```
 GET  /account                                  # account, instances, max_relinks
-POST /instances                                # create a cloud instance (Free tier, capped at one per account)
+POST /instances                                # create a cloud instance (Free tier, one Free per account per deployment)
 POST /instances/:id/renew                      # Free renewal; refuses outside the renewal window
+POST /instances/:id/claim-free                 # issue Free on a linked self-hosted instance
 POST /instances/link · /instances/:id/relink
+GET  /instances/:id/entitlement
+GET  /checkout/options                         # active plans + catalogue prices for the running PADDLE_ENV
+POST /instances/self-hosted                    # create a paid-checkout placeholder (awaiting_link, no licence)
+POST /instances/:id/claim-link                 # bind a paid placeholder to the real UUID and issue
+PUT  /instances/:id/entitlement                # set desired config; pushes line items to Paddle (owner|admin)
+POST /billing/portal                           # mint a Paddle customer-portal URL
 GET  /instances/:id/license · /instances/:id/license/download
 GET  /subscriptions
 GET,POST /account/users · PUT /account/users/:id/role · DELETE /account/users/:id
@@ -353,12 +420,20 @@ Staff-session (`/api/staff`):
 GET,POST /accounts · GET /accounts/:id         # search by name, email, Paddle ID or instance UUID
 GET,POST /instances · GET /instances/:id       # instance + account + licence history + injection state
 POST /instances/:id/issue · /instances/:id/relink
-GET  /licenses · /subscriptions · /audit · /plans · PUT /plans/:tier
-GET  /health/injection
+GET  /licenses · /subscriptions · /audit · /plans · PUT /plans/:deployment/:tier
+GET,PUT /catalogue
+GET,PUT /instances/:id/entitlement
+GET  /health/injection · /health/billing
 ```
 
 **Customer endpoints answer 404, never 403, for another account's resource** — a 403 confirms the resource exists. Route-group guards in `adminsite/` mirror this, but the backend is the layer that matters.
 
+### Billing (Paddle)
+
+Paddle is merchant of record; `admin/internal/paddle` is a thin REST client (no vendor SDK) and the only place that talks to it. **Free is entirely outside Paddle** — the shipped self-serve Free flow owns its own renewal, so no £0 subscription exists; an account learns its `paddle_customer_id` from its first paid webhook. Checkout happens in the browser (`@paddle/paddle-js`, token baked into the adminsite build); the server only updates a live subscription (`PUT /instances/:id/entitlement`) and mints a portal session.
+
+`POST /api/paddle/webhook` is the **only** issuing path for paid plans: signature-verified with `PADDLE_WEBHOOK_SECRET` (boot-required), idempotent via `paddle_events`, and a function of the subscription's _current_ line items — resolved back to a plan and configuration by `catalogue.ResolveItems`, so out-of-order delivery is correct by construction. A confirmed webhook promotes the entitlement `desired`→`granted` and signs from `granted` **only**; a checkout is built from `desired`. `subscription.canceled` and `past_due` take **no licence action** — the licence runs to its (grace-padded) expiry, then the existing lifecycle sweep lapses the instance. A renewal (`transaction.completed`, origin `subscription_recurring`) is the only moment a scheduled reduction collapses `desired` into `granted`. Self-hosted purchase creates a placeholder instance before payment (`POST /instances/self-hosted`); the licence is issued only once the customer pastes the install's real UUID (`POST /instances/:id/claim-link`), because a licence binds to that UUID.
+
 ## MongoDB Collections
 
 `servers` · `keys` · `assignments` · `orgs` · `users` · `org_oidc` · `settings` · `secrets` · `workflows` · `workflow_steps` · `workflow_runs` · `monitors` · `incidents` · `monitor_rollups` · `notification_channels` · `console_sessions` · `audit_logs` · `migrations`
@@ -375,7 +450,9 @@ Notes that are not obvious from the structs:
 - `console_sessions.token_consumed_at` is set atomically to enforce one-time use.
 - `users.auth_source` is `local`, `oidc` or `hq`. An `hq` user was projected from a Vantage HQ account and carries `hq_user_id`; HQ owns its role, password and existence.
 
-Admin's own database is separate and holds `accounts` · `admin_instances` · `licenses` · `subscriptions` · `plans` · `staff_users` · `customer_users` · `instance_members` · `admin_audit`. `instance_members` is unique on `(instance_id, customer_user_id)` — one person holds at most one user in one instance, which makes a grant idempotent-by-refusal rather than silently doubling a projection. It is an *index* of the control-plane rows, not the authority (see "Grants project, they do not federate"). Admin has no migrations collection; `models.Backfill` runs on every boot and is idempotent by filtering on the absence of what it writes.
+Admin's own database is separate and holds `accounts` · `admin_instances` · `licenses` · `subscriptions` · `plans` · `catalogue` · `entitlements` · `paddle_events` · `staff_users` · `customer_users` · `instance_members` · `admin_audit`. `paddle_events` is the webhook idempotency log, unique on `event_id`: an event is claimed there before processing, and a duplicate of a handled event is a 200 no-op. `instance_members` is unique on `(instance_id, customer_user_id)` — one person holds at most one user in one instance, which makes a grant idempotent-by-refusal rather than silently doubling a projection. It is an _index_ of the control-plane rows, not the authority (see "Grants project, they do not federate"). Admin has no migrations collection; `models.Backfill` runs on every boot and is idempotent by filtering on the absence of what it writes.
+
+`plans` is keyed on `(deployment, tier)` — six rows, two deployments times three tiers — and holds base allowances only. **Every Paddle price ID lives in `catalogue`**, one row per priceable component (`base`, `limit`, `feature`), because a metered plan is priced by several prices and one map on a plan row cannot express that. `entitlements` holds one row per instance with `desired` beside `granted`: the checkout is built from `desired`, a licence is only ever signed from `granted`, and an abandoned checkout therefore leaves a `desired` that reached nothing. The two Free plans have **no catalogue rows at all**, which is what keeps Free outside Paddle.
 
 ### Migrations
 
@@ -447,32 +524,35 @@ Windows: MSI built by CI (WiX), or `installer/setup.ps1` registering the agent a
 
 ## Environment Variables (server)
 
-| Name                       | Required        | Notes                                                                                                                                                      |
-| -------------------------- | --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `GRPC_HOST`                | **yes**         | `host:port` agents dial. Boot fails without it — there is no safe default; falling back to the web host would hand agents a port that does not speak gRPC. |
-| `MONGO_URI`                | no              | default `mongodb://localhost:27017`                                                                                                                        |
-| `MONGO_DB`                 | no              | default `vantage`                                                                                                                                          |
-| `REDIS_ADDR`               | no              | default `localhost:6379`                                                                                                                                   |
-| `KEY_ENCRYPTION_KEY`       | yes in practice | 64-char hex (32 bytes) for AES-256-GCM. Required for private keys, secrets, OIDC secrets, RDP credentials.                                                 |
-| `GITEA_HOST`               | yes             | used to build install scripts and agent download URLs                                                                                                      |
-| `GUACD_ADDR`               | no              | default `guacd:4822`                                                                                                                                       |
-| `APP_ROOT_LABEL`           | no              | default `vantage`; wrong value disables the host/session org guard                                                                                         |
-| `VANTAGE_WORKFLOW_LOG_DIR` | no              | where run logs are written                                                                                                                                 |
+| Name                       | Required        | Notes                                                                                                                                                                                                                                                                                                              |
+| -------------------------- | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `GRPC_HOST`                | **yes**         | `host:port` agents dial. Boot fails without it — there is no safe default; falling back to the web host would hand agents a port that does not speak gRPC.                                                                                                                                                         |
+| `MONGO_URI`                | no              | default `mongodb://localhost:27017`                                                                                                                                                                                                                                                                                |
+| `MONGO_DB`                 | no              | default `vantage`                                                                                                                                                                                                                                                                                                  |
+| `REDIS_ADDR`               | no              | default `localhost:6379`                                                                                                                                                                                                                                                                                           |
+| `KEY_ENCRYPTION_KEY`       | yes in practice | 64-char hex (32 bytes) for AES-256-GCM. Required for private keys, secrets, OIDC secrets, RDP credentials.                                                                                                                                                                                                         |
+| `GUACD_ADDR`               | no              | default `guacd:4822`                                                                                                                                                                                                                                                                                               |
+| `PROXY_ADVERTISE_HOST`     | no              | default `server`; the hostname guacd resolves the control plane by, handed to guacd as the relay's address. Wrong here and every console session fails at connect                                                                                                                                                |
+| `PROXY_LISTEN_HOST`        | no              | default `0.0.0.0`; the interface the ephemeral relay listener binds                                                                                                                                                                                                                                                |
+| `APP_ROOT_LABEL`           | no              | default `vantage`; wrong value disables the host/session org guard                                                                                                                                                                                                                                                 |
+| `VANTAGE_WORKFLOW_LOG_DIR` | no              | where run logs are written                                                                                                                                                                                                                                                                                         |
 | `FREE_INSTANCE_REAP_AFTER` | no              | duration past a Free licence's expiry before the instance and all its data are deleted. **Empty disables the reaper, and empty is the default.** Set to `336h` in `docker-compose.site.yml` only — a self-hosted deployment must never reap. Must match admin's value, which only names the date in warning emails |
 
 **sitesvc** (`deploy/docker-compose.site.yml` only):
 
-| Name                              | Required        | Notes                                                                                                                                                                                                                                                                                                                                            |
-| --------------------------------- | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| Name                              | Required        | Notes                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
+| --------------------------------- | --------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `MONGO_URI`                       | yes             | **must point at the control plane's database.** sitesvc no longer provisions orgs itself, but it still refuses to start (`RequireMigratedDatabase`) against a database that has not run migration `0004` (the `orgs` → `instances` rename), and it (re)declares the shared `users.email` / `instances.slug` indexes at boot. The database name is read from the URI path; a URI without one is refused rather than defaulted. Note this differs from the server, which takes `MONGO_DB` separately. |
-| `SMTP_HOST` / `SMTP_FROM`         | yes             | without them the contact form refuses (503) rather than silently dropping                                                                                                                                                                                                                                                                        |
-| `SMTP_TO`                         | no              | default `support@hostxtra.co.uk`; contact enquiries only                                                                                                                                                                                                                                                                                         |
-| `SMTP_PORT`                       | no              | default `587`; `465` uses implicit TLS                                                                                                                                                                                                                                                                                                           |
-| `SMTP_USERNAME` / `SMTP_PASSWORD` | no              | auth skipped when username is empty                                                                                                                                                                                                                                                                                                              |
-| `SITE_ORIGIN`                     | yes in practice | comma-separated allowed origins; unset refuses every cross-origin browser request                                                                                                                                                                                                                                                                |
-| `TRUST_PROXY`                     | no              | only `true` behind a proxy that overwrites `X-Forwarded-For`, or clients spoof past the rate limiter                                                                                                                                                                                                                                             |
+| `SMTP_HOST` / `SMTP_FROM`         | yes             | without them the contact form refuses (503) rather than silently dropping                                                                                                                                                                                                                                                                                                                                                                                                                           |
+| `SMTP_TO`                         | no              | default `support@hostxtra.co.uk`; contact enquiries only                                                                                                                                                                                                                                                                                                                                                                                                                                            |
+| `SMTP_PORT`                       | no              | default `587`; `465` uses implicit TLS                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
+| `SMTP_USERNAME` / `SMTP_PASSWORD` | no              | auth skipped when username is empty                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| `SITE_ORIGIN`                     | yes in practice | comma-separated allowed origins; unset refuses every cross-origin browser request                                                                                                                                                                                                                                                                                                                                                                                                                   |
+| `TRUST_PROXY`                     | no              | only `true` behind a proxy that overwrites `X-Forwarded-For`, or clients spoof past the rate limiter                                                                                                                                                                                                                                                                                                                                                                                                |
 
-`deploy/docker-compose.yml` runs four services: `redis`, `guacd`, `server` (8080 + 9090), `web` (3000). MongoDB is external. `deploy/docker-compose.site.yml` adds four more — `site` (3003), `sitesvc` (8082), `admin` (8083) and `adminsite` (3004) — and is only used on vantage.hostxtra.co.uk.
+`deploy/docker-compose.yml` runs four services: `redis`, `guacd`, `server` (8080 + 9090), `web` (3000). MongoDB is external. `deploy/docker-compose.site.yml` adds five more — `site` (3003), `sitesvc` (8082), `admin` (8083), `adminsite` (3004) and `docsite` (3005) — and is only used on vantage.hostxtra.co.uk.
+
+`docsite` is the odd one: a **static** build served by `nginx:alpine-slim`, not a Node runtime, and it listens on `80` rather than `3000`. It is reached at **`vantage.hostxtra.co.uk/docs`** — a path on the marketing host, routed by its own Nginx Proxy Manager location, which must sort **above** the catch-all forwarding to `site:3003` or Next answers the 404. A path and not a subdomain because `*.vantage.hostxtra.co.uk` is the per-tenant instance namespace and `APP_ROOT_LABEL` would read a `docs.` label as a tenant slug. NPM forwards the **full** path upstream — it does not strip `/docs` — so `DOCS_BASE_URL`, the proxy location and the directory the image copies the build into (`/usr/share/nginx/html/docs`) must all agree. When they do not, the HTML loads and every asset 404s.
 
 `LICENSE_SIGNING_KEY` appears in **exactly one service in exactly one compose file**: `admin` in `docker-compose.site.yml`. It must never be added to `server`, and the self-hosted `docker-compose.yml` must never mention `admin` or `adminsite` at all. Admin uses an external Redis via `REDIS_ADDR`/`REDIS_USERNAME`/`REDIS_PASSWORD`; the base compose hardcodes `redis:6379` for `server`, so those variables reach admin only.
 
@@ -496,15 +576,20 @@ Windows: MSI built by CI (WiX), or `installer/setup.ps1` registering the agent a
 
 Next.js 16 (App Router) + React 18, Tailwind 3, TanStack Query. Guacamole client bundled locally in `web/lib/guacamole-common.js`.
 
-All three apps are **one visual system**, anchored on the logo navy. What differs between them is which end of it they stand on:
+All four apps are **one visual system**, anchored on the logo navy. What differs between them is which end of it they stand on:
 
-| App | Ground | Accent | Themes |
-| --- | --- | --- | --- |
-| `web/` | `--ground` dark, `#071628` | `#5b9be8` | dark only, locked |
-| `site/` | token-based | `#0b2a58` light / `#5b9be8` dark | light + dark |
-| `adminsite/` | token-based | `#0b2a58` light / `#5b9be8` dark | light + dark, light default |
+| App          | Ground                     | Accent                           | Themes                      |
+| ------------ | -------------------------- | -------------------------------- | --------------------------- |
+| `web/`       | `--ground` dark, `#071628` | `#5b9be8`                        | dark only, locked           |
+| `site/`      | token-based                | `#0b2a58` light / `#5b9be8` dark | light + dark                |
+| `adminsite/` | token-based                | `#0b2a58` light / `#5b9be8` dark | light + dark, light default |
+| `docsite/`   | token-based                | `#0b2a58` light / `#5b9be8` dark | light + dark, light default |
 
-`adminsite/app/globals.css` holds `site/app/globals.css`'s token blocks **copied verbatim** — same names, same values. `web/app/globals.css` holds the same tokens too, but only the **dark** values, since it does not switch. **Change a token in all three files in the same commit; nothing enforces the match automatically**, the same shape of hazard as sitesvc's mirrored slug rules.
+`adminsite/app/globals.css` and `docsite/src/css/custom.css` hold `site/app/globals.css`'s token blocks **copied verbatim** — same names, same values. `web/app/globals.css` holds the same tokens too, but only the **dark** values, since it does not switch. **Change a token in all four files in the same commit; nothing enforces the match automatically**, the same shape of hazard as sitesvc's mirrored slug rules.
+
+`docsite/` is the one place the tokens are not consumed through Tailwind: everything below its token block maps Docusaurus's `--ifm-*` variables onto them. Docusaurus already stamps `data-theme` on `<html>`, which is the selector `site/`'s dark block keys on, so the built-in toggle needed no wiring. The rule holds all the same — no rule in that file outside the token blocks carries a hex. The one concession is `docsite/static/img/favicon.svg`, which must, for the same reason the email layout must: a browser tab cannot read a token.
+
+There is a **fifth** copy, and it is the one people forget: `shared/mail/templates/layout.html.tmpl` carries web/'s dark values as literal hex. Email clients support neither `var()` nor a reliable `prefers-color-scheme`, so the token indirection is simply not available there — an email is read before the recipient clicks through to the control plane, and the two should not look like different products. Every colour in the email system is in that one file, in the same way no component in the four web apps carries a hex.
 
 Tailwind in all three maps `var(--…)` references only, so **no component in any of them may carry a hex value**. The names differ per app on purpose, because each app has its own subject: `site/` calls the semantic three `--up`/`--pend`/`--down` for monitor state, `adminsite/` aliases them to `valid`/`warn`/`expired` for licence state, and `web/` to `success`/`warning`/`danger`. Same colours, honest names on each side.
 
@@ -561,7 +646,7 @@ GOOS=linux GOARCH=amd64 go build \
 
 ### `server-deploy.yml` — triggered on every push to `main`
 
-Builds and pushes six images to the Gitea container registry: `server`, `web`, `site`, `sitesvc`, `admin` and `adminsite`.
+Builds and pushes seven images to the Gitea container registry: `server`, `web`, `site`, `sitesvc`, `admin`, `adminsite` and `docsite`.
 
 Note that despite the name, **this workflow does not deploy** — it only builds and pushes. There is no SSH step. Rolling images out is a separate manual step on the host:
 
@@ -572,16 +657,16 @@ cd /opt/vantage && docker compose -f docker-compose.yml -f docker-compose.site.y
 
 **Each image only rebuilds when its own inputs changed.** A `git diff` against `github.event.before` decides, which is why the checkout uses `fetch-depth: 0` — the default shallow clone has one commit and nothing to diff — and why `git` is installed in the `docker:dind` container. The mapping follows the build contexts exactly:
 
-| Image | Rebuilds when |
-| --- | --- |
-| `server` | `server/`, `shared/`, `proto/`, `go.work` |
-| `admin` | `admin/`, `shared/`, `go.work` |
-| `sitesvc` | `sitesvc/`, `shared/`, `go.work` |
-| `web` · `site` · `adminsite` | their own directory only |
+| Image                        | Rebuilds when                             |
+| ---------------------------- | ----------------------------------------- |
+| `server`                     | `server/`, `shared/`, `proto/`, `go.work` |
+| `admin`                      | `admin/`, `shared/`, `go.work`            |
+| `sitesvc`                    | `sitesvc/`, `shared/`, `go.work`          |
+| `web` · `site` · `adminsite` · `docsite` | their own directory only      |
 
 `shared/` fans out to all three Go images because each of their Dockerfiles copies `shared/` from a root context — **if a fourth service ever imports `shared/`, add it to that list or it will ship stale**. A change to the workflow file rebuilds everything, since a build arg is baked into the image. So does anything that leaves no trustworthy base commit: a manual `workflow_dispatch`, a new branch, or a force-push whose old head is gone.
 
-The gap this leaves: **changing a repo variable pushes no commit, so nothing rebuilds.** After editing `API_URL`, `ADMIN_API_URL`, `HQ_URL` or `ADMIN_ENV`, run the workflow manually — that is what `workflow_dispatch` is there for. Base images also stop being refreshed on a service nobody touches; a periodic manual run covers that.
+The gap this leaves: **changing a repo variable pushes no commit, so nothing rebuilds.** After editing `ADMIN_API_URL`, `HQ_URL` or `ADMIN_ENV`, run the workflow manually — that is what `workflow_dispatch` is there for. Base images also stop being refreshed on a service nobody touches; a periodic manual run covers that.
 
 ### Tagging
 
@@ -592,19 +677,26 @@ git push origin main                                    # server + web deploy
 
 ### Secrets / variables
 
-| Name                 | Type     | Value                                                                                                                                                                               |
-| -------------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `RELEASE_TOKEN`      | Secret   | Gitea API token, `write:release`                                                                                                                                                    |
-| `REGISTRY_USER`      | Secret   | Gitea username                                                                                                                                                                      |
-| `REGISTRY_PASSWORD`  | Secret   | Gitea token, `write:packages`                                                                                                                                                       |
-| `GITEA_HOST`         | Variable | `gitea.hostxtra.co.uk`                                                                                                                                                              |
-| `DOCKER_HOST`        | Variable | registry host used for image tags                                                                                                                                                   |
-| `API_URL`            | Variable | baked into the `web` image at build time                                                                                                                                            |
-| `SITE_API_URL`       | Variable | **browser-reachable** sitesvc URL, baked into the `site` image. Required — if empty, both forms report "not connected" and submit nowhere. Must also be in sitesvc's `SITE_ORIGIN`. |
-| `SITE_CONTACT_EMAIL` | Variable | optional; address shown when a form is misconfigured                                                                                                                                |
-| `ADMIN_API_URL`      | Variable | **browser-reachable** admin URL, baked into **both** the `adminsite` and `site` images — `site/start` posts account signups straight to admin. Same footgun as `SITE_API_URL`: wrong here and every request fails at runtime with the not-connected panel. |
-| `ADMIN_ENV`          | Variable | `production` or `sandbox`; drives the persistent environment badge. Anything but `sandbox` reads as production.                                                                     |
-| `HQ_URL`             | Variable | optional; browser URL of the HQ portal, baked into `web` so an `hq`-sourced member links to where they are managed. Empty on self-hosted, which renders a plain label instead.       |
+| Name                    | Type     | Value                                                                                                                                                                                                                                                      |
+| ----------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `RELEASE_TOKEN`         | Secret   | Gitea API token, `write:release`                                                                                                                                                                                                                           |
+| `REGISTRY_USER`         | Secret   | Gitea username                                                                                                                                                                                                                                             |
+| `REGISTRY_PASSWORD`     | Secret   | Gitea token, `write:packages`                                                                                                                                                                                                                              |
+| `DOCKER_HOST`           | Variable | registry host used for image tags                                                                                                                                                                                                                          |
+| `API_URL`               | **not** a CI variable | `web` reads it at **runtime**, from the container environment — `next.config.ts` is evaluated when `server.js` boots in standalone mode, and the rewrites it feeds are server-side, never browser-side. Default `http://localhost:8080`; compose sets `http://server:8080`. `NEXT_PUBLIC_API_URL` is still honoured as a fallback for existing deployments. |
+| `SITE_API_URL`          | Variable | **browser-reachable** sitesvc URL, baked into the `site` image. Required — if empty, both forms report "not connected" and submit nowhere. Must also be in sitesvc's `SITE_ORIGIN`.                                                                        |
+| `SITE_CONTACT_EMAIL`    | Variable | optional; address shown when a form is misconfigured                                                                                                                                                                                                       |
+| `SITE_URL`              | Variable | browser URL of the marketing site, baked into `adminsite` so `/login` can point at `/start`. **Signup has no page in `adminsite` at all** — one signup form, on `site/`. Empty renders no link rather than one that 404s.                                  |
+| `ADMIN_API_URL`         | Variable | **browser-reachable** admin URL, baked into **both** the `adminsite` and `site` images — `site/start` posts account signups straight to admin. Same footgun as `SITE_API_URL`: wrong here and every request fails at runtime with the not-connected panel. |
+| `ADMIN_ENV`             | Variable | `production` or `sandbox`; drives the persistent environment badge. Anything but `sandbox` reads as production.                                                                                                                                            |
+| `HQ_URL`                | Variable | optional; browser URL of the HQ portal, baked into `web` so an `hq`-sourced member links to where they are managed. Empty on self-hosted, which renders a plain label instead.                                                                             |
+| `PADDLE_CLIENT_TOKEN`   | Variable | **browser** Paddle token, baked into the `adminsite` image for checkout. A repo-variable change pushes no commit, so rebuild `adminsite` manually via `workflow_dispatch` after editing it.                                                                |
+| `PADDLE_ENV`            | Variable | `sandbox` or `production`; baked into `adminsite` AND read by `admin` at runtime. Selects which `catalogue` price IDs are served, and must match on both sides.                                                                                            |
+| `PADDLE_API_KEY`        | Secret   | server-side Paddle key, read by `admin` at runtime. Boot-required.                                                                                                                                                                                         |
+| `PADDLE_WEBHOOK_SECRET` | Secret   | webhook signature verification, read by `admin`. Boot-required — an unverified endpoint is one anyone can issue licences through.                                                                                                                          |
+| `DOCS_URL`              | Variable | site `url` baked into `docsite`; `https://vantage.hostxtra.co.uk`. Empty falls back to that default rather than breaking the build.                                                                                                                        |
+| `DOCS_BASE_URL`         | Variable | `/docs/`. Must match the NPM location and the directory the image serves from — all three, or the HTML loads and every asset 404s.                                                                                                                         |
+| `APP_URL`               | Variable | control-plane link in `docsite`'s navbar.                                                                                                                                                                                                                  |
 
 ---
 
@@ -624,3 +716,13 @@ git push origin main                                    # server + web deploy
 - **root only** — manages `/root/.ssh/authorized_keys`; no per-user key management.
 - **Windows agents are second-class by design** — register, heartbeat, run steps, report inventory; no `authorized_keys` management.
 - **Deletion lives in the control plane** — admin sends the warnings because it knows the billing address; the control plane performs the delete because it is the only service that knows which collections carry `instance_id`. Mirroring that list into admin would drift, and a drift there deletes the wrong rows.
+
+## graphify
+
+This project has a knowledge graph at graphify-out/ with god nodes, community structure, and cross-file relationships.
+
+Rules:
+- For codebase questions, first run `graphify query "<question>"` when graphify-out/graph.json exists. Use `graphify path "<A>" "<B>"` for relationships and `graphify explain "<concept>"` for focused concepts. These return a scoped subgraph, usually much smaller than GRAPH_REPORT.md or raw grep output.
+- If graphify-out/wiki/index.md exists, use it for broad navigation instead of raw source browsing.
+- Read graphify-out/GRAPH_REPORT.md only for broad architecture review or when query/path/explain do not surface enough context.
+- After modifying code, run `graphify update .` to keep the graph current (AST-only, no API cost).

default_steps/step.bash.get_hostname.json

@@ -0,0 +1,12 @@
+{
+  "kind": "vantage.step/v1",
+  "name": "Get Host Name",
+  "description": "",
+  "interpreter": "bash",
+  "script": "HOSTNAME=$(hostname)\necho $HOSTNAME\necho \"HOSTNAME=$HOSTNAME\" \u003e\u003e $WORKFLOW_ENV",
+  "declared_outputs": [
+    "HOSTNAME"
+  ],
+  "declared_inputs": [],
+  "secret_refs": []
+}

default_steps/step.bash.list_directory.json

@@ -0,0 +1,16 @@
+{
+  "kind": "vantage.step/v1",
+  "name": "List Directory",
+  "description": "",
+  "interpreter": "bash",
+  "script": "if [ ! -e $path ]; then\n    echo \"file or directory doesn't exist: $path\"\n    exit 1\nfi\nls -l $path",
+  "declared_outputs": [],
+  "declared_inputs": [
+    {
+      "name": "path",
+      "default": "./",
+      "description": ""
+    }
+  ],
+  "secret_refs": []
+}

default_steps/step.bash.start_linx_service.json

@@ -0,0 +1,16 @@
+{
+  "kind": "vantage.step/v1",
+  "name": "Start Linux Service",
+  "description": "",
+  "interpreter": "bash",
+  "script": "echo \"starting service $serviceName\"\nsystemctl start $serviceName\nretVal=$?\nif [ $retVal -ne 0 ]; then\n    echo \"failed to start service\"\n    exit 1\nfi",
+  "declared_outputs": [],
+  "declared_inputs": [
+    {
+      "name": "serviceName",
+      "default": "",
+      "description": ""
+    }
+  ],
+  "secret_refs": []
+}