{"service":"KiranaPOS Multi-Tenant SaaS Backend","status":"ONLINE","version":"2.4.0","endpoints":{"health":"/health","tenants":"/api/v1/tenants","storeRegistration":"POST /api/v1/tenants/register","syncQueue":"POST /api/v1/sync/push","syncPull":"GET /api/v1/sync/pull?tenant_id=<id>&since_version=0"},"message":"Backend API is running. Connect the Android POS App or call API endpoints directly."}