{"message":"AI视频创作系统 API - 完整版","version":"2.0.0","mode":"数据库轮询监听","worker_status":{"task_worker":"running","douyin_history_worker":"running","agent_session_worker":"running"},"features":["用户审批系统","主题管理","视频参数配置","任务筛选和管理","执行日志","管理员功能"]}