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/people_flow_project/config/config.example.yaml

@@ -39,3 +39,18 @@ rtsp:
   stream_open_timeout_seconds: 10.0
   idle_sleep_seconds: 0.05
   output_subdir: "rtsp_stream"
+
+queue:
+  enabled: true
+  area: [0.0, 0.0, 1.0, 1.0]
+  area_mode: "normalized"
+  queue_time_threshold_seconds: 300
+  crowded_count_threshold: 5
+  normal_count_threshold: 2
+  pause_timeout_seconds: 5
+  source_id: "people_flow_queue"
+
+webhook:
+  url: ""
+  timeout_seconds: 5.0
+  event_log_path: "outputs/rtsp_stream/webhook_events.jsonl"