{"service":"hurong-backend","status":"running","note":"Progress backup for Huarong Master. The device owns the save; this is a restore point.","endpoints":{"GET  /health":"liveness check","POST /v1/auth/register":"{ email, password }","POST /v1/auth/login":"{ email, password }","POST /v1/auth/refresh":"{ refresh_token }","POST /v1/auth/logout":"{ refresh_token }","GET  /v1/progress":"latest snapshot (Bearer token)","PUT  /v1/progress":"{ payload, base_revision? } (Bearer token)","DELETE /v1/account":"erase everything (Bearer token)"}}