feat: 调度表单重构、登录门控、批量任务与页面缓存对齐

调度页执行周期可视化/单次执行/分类选机/推送源对齐；登录 IP 门控与无缝导航；
服务器批量后台任务、执行记录、凭据合并、各页激活刷新与错误提示修复。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/pages/AlertsPage.vue

@@ -94,12 +94,15 @@
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted } from 'vue'
+import { ref } from 'vue'
+import { usePageActivateRefresh } from '@/composables/usePageActivateRefresh'
 import { http } from '@/api'
 import { useSnackbar } from '@/composables/useSnackbar'
 import type { PaginatedResponse, AlertLogItem, AlertStatsResponse } from '@/types/api'
 import { headersWithoutSort } from '@/constants/dataTable'
 
+defineOptions({ name: 'AlertsPage' })
+
 const snackbar = useSnackbar()
 
 // ── State ──
@@ -148,8 +151,8 @@ async function loadStats() {
   } catch { snackbar('加载统计失败', 'error') }
 }
 
-async function loadAlerts() {
-  loading.value = true
+async function loadAlerts(silent = false) {
+  if (!silent) loading.value = true
   try {
     const res = await http.get<PaginatedResponse<AlertLogItem>>('/alert-history/', {
       page: page.value,
@@ -160,7 +163,7 @@ async function loadAlerts() {
     alerts.value = res.items || []
     total.value = res.total || 0
   } catch { alerts.value = [] }
-  finally { loading.value = false }
+  finally { if (!silent) loading.value = false }
 }
 
 // ── Helpers ──
@@ -178,8 +181,9 @@ function typeIcon(t: string) {
   return 'mdi-lan-disconnect'
 }
 
-onMounted(() => {
-  loadStats()
-  loadAlerts()
-})
+async function refreshAlertsPage(silent = false) {
+  await Promise.all([loadStats(), loadAlerts(silent)])
+}
+
+usePageActivateRefresh((silent) => refreshAlertsPage(silent))
 </script>