feat(platform): promote alert events surface

vehicle-data-platform/docs/api-contract.md

@@ -153,28 +153,33 @@ Returns daily mileage rows and aggregate mileage summary.
 
 ### Alert Events
 
-Planned API surface:
+Current API surface:
 
 ```http
-GET /api/alerts/events?keyword=粤AG18312&severity=warning&status=open&limit=20&offset=0
-GET /api/alerts/events/{id}
-PATCH /api/alerts/events/{id}
-GET /api/alerts/rules
-GET /api/alerts/notifications?eventId=xxx&limit=20&offset=0
+GET /api/alert-events?keyword=粤AG18312&protocol=JT808&issueType=NO_SOURCE&limit=20&offset=0
+GET /api/alert-events/summary?keyword=粤AG18312&protocol=JT808&issueType=NO_SOURCE
+GET /api/alert-events/notification-plan?keyword=粤AG18312&protocol=JT808&issueType=NO_SOURCE&limit=20
 ```
 
-Alert records should be vehicle-first and evidence-backed. Each event should include vehicle identity, issue type, severity, protocol/source when relevant, trigger time, last seen time, current status, evidence links, trace ID if available, and notification state.
+`/api/quality/issues`, `/api/quality/summary`, and `/api/quality/notification-plan` remain compatibility aliases. New UI and integrations should use `/api/alert-events*` so the API language matches the vehicle data management center.
+
+Alert event rows are vehicle-first and evidence-backed. Each event includes vehicle identity, issue type, severity, protocol/source when relevant, last seen time, source endpoint, detail, and links generated by the BFF/UI to realtime, trajectory, RAW, mileage, vehicle detail, or notification rule evidence.
 
 Initial alert types:
 
-- `SOURCE_OFFLINE`
-- `NO_REALTIME_UPDATE`
-- `LOCATION_MISSING`
-- `MILEAGE_DIVERGENT`
-- `RAW_PARSE_FAILURE`
-- `BINDING_MISSING`
-- `SOURCE_TIME_DIVERGENT`
-- `QUEUE_BACKLOG`
+- `NO_SOURCE`
+- `VIN_MISSING`
+- `LINK_GAP`
+- `FIELD_MISSING`
+- `CAPACITY_RISK`
+
+Future durable alert records should extend this surface with event IDs, manual status, assignee, acknowledgement, escalation state, and notification logs:
+
+```http
+GET /api/alert-events/{id}
+PATCH /api/alert-events/{id}
+GET /api/alert-events/{id}/notifications?limit=20&offset=0
+```
 
 ### Online And Completeness Statistics