Add admin endpoints to list and revoke child keys under a master.
Standardize OpenAPI responses to use ResponseEnvelope with MapData
for error payloads, and regenerate swagger specs accordingly.
Add response envelope middleware to standardize JSON responses as
`{code,data,message}` with consistent business codes across endpoints.
Update Swagger annotations and tests to reflect the new response shape.
BREAKING CHANGE: API responses are now wrapped in a response envelope; clients must read payloads from `data` and handle `code`/`message` fields.
Implement webhook notifications for log error threshold alerts with
configurable thresholds, time windows, and cooldown periods.
- Add LogWebhookService with Redis-backed configuration storage
- Add admin endpoints for webhook config management (GET/PUT)
- Trigger webhook notifications when error count exceeds threshold
- Support status code threshold and error message detection
- Include sample log record data in webhook payload
