AnomalyDetector is initialized in main() with periodic model updates.
Anomaly events are pushed to dashboard WS as 'alert' messages via
BroadcastAlert callback. Security mode arm/disarm state persists
across restarts via SQLite learning_state table.
Endpoints:
- GET /api/anomalies?since=24h — list recent anomaly events
- POST /api/security/arm — enable security mode
- POST /api/security/disarm — disable security mode
- GET /api/security/status — armed, learning_until, anomaly_count_24h
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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