adapt to new value name

src/aios_kernel/storage.py

@@ -97,9 +97,7 @@ class UserConfig:
             raise Exception("user config key %s not exist",key)
         
         if config_item.value is None:
-            default_config_item = config_item.clone()
-            default_config_item.value = config_item.default_value
-            return default_config_item
+            return config_item.default_value
 
         return config_item.value
 

src/service/aios_shell/aios_shell.py

@@ -194,15 +194,13 @@ class AIOS_Shell:
                 if len(args) == 1:
                     key = args[0]
                     config_item = AIStorage.get_instance().get_user_config().get_config_item(key)
+                    old_value = AIStorage.get_instance().get_user_config().get_value(key)
                     
-                    old_value = None
                     if config_item is not None:
-                        old_value = config_item.value
-
-                    value = await session.prompt_async(f"{key} : {config_item.desc} \nCurrent : {old_value}\nPlease input new value:",style=shell_style)
-                    AIStorage.get_instance().get_user_config().set_value(key,value)
-                    await AIStorage.get_instance().get_user_config().save_to_user_config()
-                    show_text = FormattedText([("class:title", f"set {key} to {value} success!")])
+                        value = await session.prompt_async(f"{key} : {config_item.desc} \nCurrent : {old_value}\nPlease input new value:",style=shell_style)
+                        AIStorage.get_instance().get_user_config().set_value(key,value)
+                        await AIStorage.get_instance().get_user_config().save_to_user_config()
+                        show_text = FormattedText([("class:title", f"set {key} to {value} success!")])
                 
                 return show_text
             case 'connect':

src/service/aios_shell/proxy.py

@@ -11,7 +11,7 @@ sys.path.append(directory + '/../../')
 from aios_kernel import AIStorage
 
 def apply_storage():
-    proxy_cfg = AIStorage.get_instance().get_user_config().get_user_config("proxy")
+    proxy_cfg = AIStorage.get_instance().get_user_config().get_config_item("proxy")
     if proxy_cfg is None:
         return