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/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();