fix

app.py

@@ -431,7 +431,7 @@ async def websocket_endpoint(websocket: WebSocket):
             print(action)
             if action == "disconnect":
                 for item in list(queue.queue):
-                    if item[0] == user_id:
+                    if item == user_id:
                         queue.queue.remove(item)
                         break
                 print(f"User {user_id} disconnected.")