fix(session): invalidate RoomSession snapshot on room-data and permission changes

getActiveRoomSessionSnapshot() caches the frozen snapshot keyed on the session
reference, but RoomDataHandler (tradeMode/groupId/isGuildRoom/doorMode/allowPets)
and RoomPermissionsHandler (controllerLevel/owner) mutate those fields on the
same session object without invalidating the cache. Any consumer reading a
mutable field via useActiveRoomSessionSnapshot would get stale data and never
re-render.

Expose invalidateRoomSessionSnapshot() on IRoomHandlerListener and call it from
both handlers after they mutate the session.

packages/api/src/nitro/session/IRoomHandlerListener.ts

@@ -5,4 +5,5 @@ export interface IRoomHandlerListener
     getSession(id: number): IRoomSession;
     sessionUpdate(id: number, type: string): void;
     sessionReinitialize(fromRoomId: number, toRoomId: number): void;
+    invalidateRoomSessionSnapshot(): void;
 }

packages/session/src/RoomSessionManager.ts

@@ -28,7 +28,7 @@ export class RoomSessionManager implements IRoomSessionManager, IRoomHandlerList
     private _savedPosY: number = -1;
     private _activeRoomSessionSnapshot: Readonly<IRoomSessionSnapshot> | null = null;
 
-    private invalidateRoomSessionSnapshot(): void
+    public invalidateRoomSessionSnapshot(): void
     {
         this._activeRoomSessionSnapshot = null;
 

packages/session/src/handler/RoomDataHandler.ts

@@ -39,6 +39,8 @@ export class RoomDataHandler extends BaseHandler
         roomSession.allowPets = roomData.allowPets;
         roomSession.moderationSettings = parser.moderation;
 
+        this.listener.invalidateRoomSessionSnapshot();
+
         GetEventDispatcher().dispatchEvent(new RoomSessionPropertyUpdateEvent(RoomSessionPropertyUpdateEvent.RSDUE_ALLOW_PETS, roomSession));
         GetEventDispatcher().dispatchEvent(new RoomSessionEvent(RoomSessionEvent.ROOM_DATA, roomSession));
     }

packages/session/src/handler/RoomPermissionsHandler.ts

@@ -22,6 +22,8 @@ export class RoomPermissionsHandler extends BaseHandler
         if(!session) return;
 
         session.setControllerLevel(event.getParser().controllerLevel);
+
+        this.listener.invalidateRoomSessionSnapshot();
     }
 
     private onRoomRightsClearEvent(event: RoomRightsClearEvent): void
@@ -33,6 +35,8 @@ export class RoomPermissionsHandler extends BaseHandler
         if(!session) return;
 
         session.setControllerLevel(RoomControllerLevel.NONE);
+
+        this.listener.invalidateRoomSessionSnapshot();
     }
 
     private onRoomRightsOwnerEvent(event: RoomRightsOwnerEvent): void
@@ -44,5 +48,7 @@ export class RoomPermissionsHandler extends BaseHandler
         if(!session) return;
 
         session.setRoomOwner();
+
+        this.listener.invalidateRoomSessionSnapshot();
     }
 }