The DisableDockerUpdateActions setting was being saved to disk but not
updated in h.config, causing the UI toggle to appear to revert on page
refresh since the API returned the stale runtime value.
Related to #1023
- Fix TestSaveHistoryWithRetry_WriteError to be robust on root
- Add TestOnAlert to history_test.go
- Add pmg_anomaly_test.go for PMG anomaly detection coverage
- Add cleanup_test.go for tracking map cleanup coverage
- extend filter_evaluation_test.go to cover all guest threshold logic