{"overall":"operational","overallText":"所有系统运行正常","uptime":"99.9%","checks":[{"name":"数据库","status":"operational","latency":72,"message":"连接正常"},{"name":"缓存","status":"operational","latency":17,"message":"连接正常"},{"name":"API 服务","status":"operational","latency":89,"message":"响应时间 89ms"}],"timestamp":"2026-11-11T10:39:10.840Z"}