update app.py

mrrrme/backend/app.py

@@ -27,7 +27,7 @@ app.include_router(auth_router, prefix="/api")
 app.include_router(debug_router, prefix="/api/debug")
 
 # WebSocket endpoint
-app.add_api_websocket_route("/ws", websocket_endpoint)
+app.websocket("/ws")(websocket_endpoint)  # ← FIXED LINE
 
 @app.on_event("startup")
 async def startup_event():
@@ -57,4 +57,4 @@ async def health():
     return {
         "status": "healthy",
         "models_ready": models_ready
-    }
+    }