polish alert operations workspace

vehicle-data-platform/apps/web/src/v2/domain/alert.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest';
-import { alertValue, canAct, ruleCondition, thresholdText } from './alert';
+import { alertValue, canAct, formatAlertTime, ruleCondition, thresholdText } from './alert';
 
 describe('alert domain helpers', () => {
   it('keeps trigger evidence and duration explicit', () => {
@@ -23,4 +23,8 @@ describe('alert domain helpers', () => {
     expect(thresholdText({ threshold: 20, thresholdHigh: 80, operator: 'between', unit: '%', durationSec: 30 })).toBe('区间内 20–80 %，持续 30 秒');
     expect(ruleCondition({ valueType: 'boolean', metric: 'alarm_active', operator: 'changed', durationSec: 0 } as never)).toBe('协议告警位 状态变化');
   });
+
+  it('renders operational timestamps in the shared Shanghai timezone', () => {
+    expect(formatAlertTime('2026-07-18T02:33:00Z')).toBe('07-18 10:33:00');
+  });
 });

vehicle-data-platform/apps/web/src/v2/domain/alert.ts

@@ -1,7 +1,15 @@
 import type { AlertEvent, AlertRule, AlertSeverity, AlertStatus } from '../../api/types';
 import { formatZhNumber } from './formatters';
 
-const alertTimeFormatter = new Intl.DateTimeFormat('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit', hour12: false });
+const alertTimeFormatter = new Intl.DateTimeFormat('zh-CN', {
+  month: '2-digit',
+  day: '2-digit',
+  hour: '2-digit',
+  minute: '2-digit',
+  second: '2-digit',
+  hour12: false,
+  timeZone: 'Asia/Shanghai'
+});
 
 export const severityLabels: Record<AlertSeverity, string> = { critical: '紧急', major: '重要', minor: '一般' };
 export const statusLabels: Record<AlertStatus, string> = { unprocessed: '未处理', processing: '处理中', recovered: '已恢复', closed: '已关闭', ignored: '已忽略' };