AlertManager gains an optional openclaw_client. check_alerts records
each newly created alert and AlertManager.maybe_autoscale (called
from the async router for each alert) invokes cron_pool.scale_up(1).
scale_up itself caps at MAX_POOL_SIZE so repeated invocations are safe.
Removed the xfail guard in test_alert_autoscale_link; rewrote the test
to use task_backlog (duration_minutes=0) so a single check_alerts call
fires an alert and triggers auto-scale.
_send_webhook:
- Dedupe: skip if alert.webhook_sent is already True (guards against
repeated check_alerts ticks re-sending the same alert).
- Retry: up to 3 attempts with exponential backoff (1s, 2s) before
giving up. webhook_sent=True is persisted only on success.
Two xfail guards in test_openclaw_client_and_webhook now pass (876/4 xfail).
- Add metrics.py with pool utilization, task backlog, stuck rate, avg processing time, eval completion rate
- Add alerts.py with alert rules (pool utilization > 90%, task backlog > 50, stuck rate > 10%)
- Implement alert history and webhook notifications
- Add metrics and alerts APIs
- Add database migration for alert history table
- Add 11 unit tests for metrics, 10 unit tests for alerts, 8 integration tests
- Update migration tests to include new alert history table
All 853 tests passing.
