性能：看板改为单次请求加载，从5个并发请求优化为1个

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web-antd/src/api/aiot/alarm/index.ts

@@ -98,6 +98,15 @@ export namespace AiotAlarmApi {
     hour: number;
     count: number;
   }
+
+  /** 看板聚合数据 */
+  export interface DashboardData {
+    statistics: AlertStatistics;
+    trend: TrendItem[];
+    deviceTop: DeviceTopItem[];
+    hourDistribution: HourDistItem[];
+    recentAlerts: Alert[];
+  }
 }
 
 // ==================== 告警管理 API ====================
@@ -133,6 +142,14 @@ export function deleteAlert(id: number | string) {
   return requestClient.delete(`/aiot/alarm/alert/delete?id=${id}`);
 }
 
+/** 获取看板聚合数据（单次请求） */
+export function getAlertDashboard(trendDays: number = 7) {
+  return requestClient.get<AiotAlarmApi.DashboardData>(
+    '/aiot/alarm/alert/dashboard',
+    { params: { trendDays } },
+  );
+}
+
 /** 获取告警统计 */
 export function getAlertStatistics(startTime?: string, endTime?: string) {
   return requestClient.get<AiotAlarmApi.AlertStatistics>(

apps/web-antd/src/views/aiot/alarm/summary/index.vue

@@ -23,11 +23,8 @@ import {
 } from 'ant-design-vue';
 
 import {
-  getAlertDeviceTop,
-  getAlertHourDistribution,
-  getAlertStatistics,
+  getAlertDashboard,
   getAlertTrend,
-  getRecentAlerts,
 } from '#/api/aiot/alarm';
 
 import {
@@ -94,23 +91,16 @@ const STATUS_NAMES: Record<string, string> = {
   ignored: '已忽略',
 };
 
-/** 加载全部数据 */
+/** 加载全部数据（单次请求） */
 async function loadAll() {
   loading.value = true;
   try {
-    const [statsRes, trendRes, deviceRes, hourRes, alertsRes] =
-      await Promise.all([
-        getAlertStatistics(),
-        getAlertTrend(trendDays.value),
-        getAlertDeviceTop(10, 7),
-        getAlertHourDistribution(7),
-        getRecentAlerts(10),
-      ]);
-    stats.value = statsRes;
-    trendData.value = trendRes;
-    deviceTopData.value = deviceRes;
-    hourDistData.value = hourRes;
-    recentAlerts.value = alertsRes?.list || [];
+    const data = await getAlertDashboard(trendDays.value);
+    stats.value = data.statistics;
+    trendData.value = data.trend;
+    deviceTopData.value = data.deviceTop;
+    hourDistData.value = data.hourDistribution;
+    recentAlerts.value = data.recentAlerts || [];
   } finally {
     loading.value = false;
     await nextTick();