feat: route all html editor API mutations through single owner task

1 files changed, 9 insertions, 5 deletions

diff --git a/internal/game/exit_migrate.go b/internal/game/exit_migrate.go
index db70c8d..c678591 100644
--- a/internal/game/exit_migrate.go
+++ b/internal/game/exit_migrate.go
@@ -152,7 +152,7 @@ func (g *Game) RewriteRoomIDs(idMap map[int]int) {
 }
 
 // MigrateRoomIDs is the complete room-ID migration entry point for other
-// goroutines (the admin API and swapid command): player state, Hub room
+// goroutines: player state, Hub room
 // buckets, casino room keys, world room-keyed runtime state, and live mob
 // instances all move together under one owner task. This is what makes a
 // live rename leave NO gameplay or broadcast attached to the old location.
@@ -161,13 +161,17 @@ func (g *Game) MigrateRoomIDs(idMap map[int]int) {
 		return
 	}
 	g.RunOnOwner(func() {
-		g.migrateRoomIDsLocked(idMap)
+		g.MigrateRoomIDsOnOwner(idMap)
 	})
 }
 
-// migrateRoomIDsLocked performs the full runtime migration; caller must
-// already be on the owner goroutine.
-func (g *Game) migrateRoomIDsLocked(idMap map[int]int) {
+// MigrateRoomIDsOnOwner performs the full runtime migration within an existing
+// owner task (e.g. the admin editor's file commit + migration + reload task).
+// It must not dispatch again: a nested RunOnOwner would deadlock.
+func (g *Game) MigrateRoomIDsOnOwner(idMap map[int]int) {
+	if len(idMap) == 0 {
+		return
+	}
 	if g.Hub != nil {
 		g.Hub.RekeyRooms(idMap)
 	}