unify cached command

cache.py

@@ -23,6 +23,8 @@ def load_cache(filepath: str):
 def add_cache(command: str, result: dict):
     """add a cache of ai calling"""
     command = normalize_text(command)
+    result["command"] = command
+
     global cache_ai
     cache_ai[command] = result
     print(f'[cache] added "{command}"')