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/app/modules/notifier.py

@@ -5,7 +5,9 @@ from pathlib import Path
 from urllib import request
 
 
-def build_json_request(url: str, payload: dict, timeout_seconds: float = 5.0) -> request.Request:
+def build_json_request(
+    url: str, payload: dict, timeout_seconds: float = 5.0
+) -> request.Request:
     data = json.dumps(payload).encode("utf-8")
     req = request.Request(url=url, data=data, method="POST")
     req.add_header("Content-Type", "application/json")
@@ -18,3 +20,22 @@ def append_json_event(path: str | Path, payload: dict) -> None:
     output_path.parent.mkdir(parents=True, exist_ok=True)
     with output_path.open("a", encoding="utf-8") as handle:
         handle.write(json.dumps(payload, ensure_ascii=False) + "\n")
+
+
+def post_json_event(url: str, payload: dict, timeout_seconds: float = 5.0) -> None:
+    if not url.strip():
+        return
+    req = build_json_request(url, payload, timeout_seconds=timeout_seconds)
+    with request.urlopen(req, timeout=timeout_seconds):
+        return
+
+
+def dispatch_json_event(
+    path: str | Path,
+    payload: dict,
+    webhook_url: str = "",
+    timeout_seconds: float = 5.0,
+) -> None:
+    append_json_event(path, payload)
+    if webhook_url.strip():
+        post_json_event(webhook_url, payload, timeout_seconds=timeout_seconds)