feat: show the instance ID after setup

server/internal/auth/local.go

@@ -126,7 +126,11 @@ func HandleBootstrap(c *gin.Context) {
 		return
 	}
 	SetSessionCookie(c, sessionID)
-	c.JSON(http.StatusCreated, gin.H{"instance": inst, "slug": inst.Slug})
+	c.JSON(http.StatusCreated, gin.H{
+		"instance":    inst,
+		"slug":        inst.Slug,
+		"instance_id": inst.InstanceID,
+	})
 }
 
 func HandleMe(c *gin.Context) {