{"status":"ok","message":"auth-huaren-worker is running","endpoints":{"POST /register":"用户注册","POST /login":"用户登录（返回 Bearer token）","POST /logout":"用户登出","GET /verify":"验证 token 是否有效（Authorization: Bearer <token>）","POST /change-password":"修改当前登录用户自己的密码（Authorization: Bearer <token>）"}}