{"name":"易租房后端 API","ok":true,"docs":{"health":"/health","房源":"/api/houses","轮播":"/api/banners","小程序登录":"POST /api/auth/wxlogin","COS直传签名":"GET /api/upload/sign?biz=house&filename=a.jpg (需登录)","文件登记":"POST /api/files (需登录)"}}