Refactor store dwell alert management API and dwell engine

- Updated argument parsing in manage_api.py to include new threshold parameters.
- Enhanced _config_payload to include thresholds and webhook configurations.
- Modified _build_summary to track queue metrics and adjust alert reporting.
- Refactored DwellEngine to utilize queue thresholds for alerting and reporting.
- Added queue metrics calculations and status change tracking in dwell_engine.py.
- Updated notifier.py to support posting JSON events to webhooks.
- Adjusted example configuration to reflect new threshold parameters.
- Enhanced Docker entrypoint script for better process management.
- Updated tests to cover new queue metrics and thresholds.
- Improved ManagedServiceDetail and ManagedServices Vue components to display queue metrics.

managed/store_dwell_alert/config/config.example.yaml

@@ -2,8 +2,9 @@ camera_id: store_cam_01
 timezone: Asia/Shanghai
 
 thresholds:
-  min_people: 5
-  min_dwell_seconds: 600
+  queue_time_threshold_seconds: 300
+  crowded_count_threshold: 5
+  normal_count_threshold: 2
   pause_timeout_seconds: 300
   alert_cooldown_seconds: 600
 
@@ -21,6 +22,7 @@ event_sink:
   path: logs/events.jsonl
 
 webhook:
+  url: ""
   alert_url: ""
   report_url: ""
   timeout_seconds: 5.0