chore: replace em dashes with hyphens, add no-em-dash rule to CLAUDE.md

license/license.go

@@ -45,7 +45,7 @@ const (
 	FeatureMCP = "mcp"
 )
 
-// Support levels. Carried for display and enforced by nothing — there is no code
+// Support levels. Carried for display and enforced by nothing - there is no code
 // path anywhere that branches on these, and there must not be one. They are here
 // so an air-gapped install can tell its operator who to call without reaching
 // Vantage HQ.
@@ -74,7 +74,7 @@ type Limits struct {
 // FillUnset replaces any zero field with the same field from base.
 //
 // This exists for one reason: a licence signed before a field existed decodes it
-// as 0, and 0 would read as the most restrictive possible value — no monitors,
+// as 0, and 0 would read as the most restrictive possible value - no monitors,
 // and an audit log trimmed to nothing. A blob we cannot re-sign must not be
 // allowed to mean that.
 //

license/plans.go

@@ -4,7 +4,7 @@ package license
 //
 // This table is the seed. The admin service owns the authoritative copy in its
 // `plans` collection, and every issued licence snapshots the plan it was cut
-// from — so editing a plan never rewrites an existing licence, the same rule as
+// from - so editing a plan never rewrites an existing licence, the same rule as
 // workflow_runs.steps_snapshot.
 //
 // Limits here are the BASE allowance: what the tier grants before anything is

license/verify.go

@@ -97,7 +97,7 @@ func Verify(blob string, opts VerifyOpts) Result {
 // Parse verifies the signature only, ignoring binding and expiry.
 //
 // Used to display a licence and to inspect a blob a customer has emailed in.
-// Never use it for enforcement — it does not check who the licence is for.
+// Never use it for enforcement - it does not check who the licence is for.
 func Parse(blob string) (License, error) {
 	parsed, err := lk.LicenseFromB32String(blob)
 	if err != nil {