feat(platform): add alert policy escalation

vehicle-data-platform/apps/web/src/api/client.test.ts

@@ -179,7 +179,7 @@ test('qualityNotificationPlan reads alert rules and priority issues from backend
       data: {
         summary: { issueVehicleCount: 1, issueRecordCount: 1, errorCount: 1, warningCount: 0, protocols: [], issueTypes: [] },
         rules: [{ issueType: 'NO_SOURCE', title: '无数据来源', level: 'P0', owner: '平台接入', trigger: '无来源', notify: '立即通知', sla: '30 分钟确认', count: 1 }],
-        policies: [{ name: 'P0 实时中断', target: '接入运维', channel: '邮件', condition: '无来源' }],
+        policies: [{ name: 'P0 实时中断', target: '接入运维', channel: '邮件', condition: '无来源', escalationMinutes: 30, acceptanceCriteria: '来源恢复并持续 10 分钟' }],
         priorityIssues: [{ vin: 'VIN001', plate: '粤A001', phone: '', sourceEndpoint: '', protocol: 'VEHICLE_SERVICE', issueType: 'NO_SOURCE', severity: 'error', lastSeen: '', detail: '无来源', priority: 'P0', actionLabel: '确认平台转发', actionDetail: '确认平台转发', sla: '30 分钟确认', vehicleLabel: '粤A001 / VIN001', realtimeHash: '#/realtime?keyword=VIN001', historyHash: '#/history?keyword=VIN001', rawHash: '#/history?keyword=VIN001&tab=raw', vehicleHash: '#/detail?keyword=VIN001', notificationText: '【P0 告警通知】无数据来源' }],
         activeRuleCount: 1,
         p0RuleCount: 1
@@ -193,6 +193,8 @@ test('qualityNotificationPlan reads alert rules and priority issues from backend
 
   expect(fetchMock).toHaveBeenCalledWith('/api/quality/notification-plan?issueType=NO_SOURCE', undefined);
   expect(result.rules[0].level).toBe('P0');
+  expect(result.policies[0].escalationMinutes).toBe(30);
+  expect(result.policies[0].acceptanceCriteria).toContain('来源恢复');
   expect(result.priorityIssues[0].notificationText).toContain('告警通知');
 });