{"message":"Notification Backend API","service":"notification-backend","version":"2.0.0","documentation":"/api/v1/reference","endpoints":{"health":"/health","metrics":"/metrics","docs":"/api/v1/reference","notifications":"/api/v1/notifications","notificationStream":"/api/v1/notifications/stream","preferences":"/api/v1/preferences","templates":"/api/v1/templates","broadcast":"/api/v1/broadcast","webhook":"/api/v1/webhook","status":"/api/v1/status"}}