feat: add api-based extension & external data tool & moderation backend (#1403)

Co-authored-by: takatost <takatost@gmail.com>

api/controllers/web/completion.py

@@ -139,7 +139,7 @@ class ChatStopApi(WebApiResource):
         return {'result': 'success'}, 200
 
 
-def compact_response(response: Union[dict | Generator]) -> Response:
+def compact_response(response: Union[dict, Generator]) -> Response:
     if isinstance(response, dict):
         return Response(response=json.dumps(response), status=200, mimetype='application/json')
     else: