添加了从 os.environ 读取空值环境变量的逻辑

routes/bot_manager.py

@@ -1842,6 +1842,13 @@ async def get_bot_settings(bot_uuid: str, authorization: Optional[str] = Header(
                 # 清理不在 skill 所需变量中且值为空的环境变量
                 shell_env = {k: v for k, v in shell_env.items() if v or k in required_keys}
 
+            # 对于值为空的环境变量，尝试从系统环境变量中读取
+            for k, v in shell_env.items():
+                if not v:
+                    env_val = os.environ.get(k, '')
+                    if env_val:
+                        shell_env[k] = env_val
+
             return BotSettingsResponse(
                 bot_id=str(bot_id),
                 name=bot_name,