{"message":"评测系统 API 服务器运行正常 (支持VR和手机双模式)","endpoints":{"POST /submit-user-info":"提交用户信息并创建评测","GET /questions":"VR端获取所有评测题目","POST /evaluations/submit":"VR端/手机端提交评测答案","GET /mobile/questions/:testId":"手机端获取题目（无视频）","GET /mobile/active-test":"手机端获取当前活跃评测集","GET /mobile/user/:userId/history-reports":"手机端获取用户历史报告列表","POST /mobile/create-and-submit-evaluation":"手机端一次性创建评测并提交答案","GET /mobile/health":"手机端健康检查"}}