fix a bug: change from str to list

routers/game_util.py

@@ -9,7 +9,7 @@ from fastapi import HTTPException, status
 debug = False
 
 
-def op(game: str, code: str, crud: str, command: str, result="", desc="") -> Any:
+def op(game: str, code: str, crud: str, command: str, result=[], desc=[]) -> Any:
     # check passcode
     _code = os.getenv("hfs_code")
     if _code is None: