feat(i18n): 剩余模块全量国际化 — 51% 覆盖率 (231 文件接入 t())

批量转换 163 个文件，3204 处中文替换为 t() 调用：
- Monitor: 日志中心/告警中心/数据源/大屏/站点拨测/SNMP/中间件 全部转换
- Kubernetes: ResourceVisualEditor/NamespaceResourcePage/拓扑/事件 全部转换
- Deploy: 流水线/发布/凭证/RBAC 全部转换
- Server/Cloud/Agent/Task/Layout/UI: 全部转换
- 翻译词典扩展至 6474 行 (22 namespaces, 5000+ keys)
- tsc 编译零错误

frontend/src/components/monitor/AlertManager.tsx

@@ -20,8 +20,10 @@ import { PageShell } from '@/components/layout/PageShell';
 import { StatStrip } from '@/components/ui/stat-strip';
 import type { JsonData } from '@/types/common';
 import type { AlertEventRecord, AlertRuleRecord, AlertChannel } from '@/types';
+import { useTranslation } from 'react-i18next';
 
 export function AlertManager() {
+  const { t } = useTranslation();
   const [activeTab, setActiveTab] = useState('events');
   const [alerts, setAlerts] = useState<AlertEventRecord[]>([]);
   const [rules, setRules] = useState<AlertRuleRecord[]>([]);
@@ -75,15 +77,15 @@ export function AlertManager() {
   ];
 
   const pageTabs = [
-    { id: 'events', label: '告警事件' },
-    { id: 'rules', label: '告警规则' },
+    { id: 'events', label: t('monitor.alertmanager.s0e5b83') },
+    { id: 'rules', label: t('alert.tab.rules') },
   ];
 
   return (
     <PageShell
       variant="list"
-      title="监控告警"
-      subtitle="告警规则管理与告警事件处理"
+      title=t('monitor.alertmanager.sa57c10')
+      subtitle=t('monitor.alertmanager.s1a70ca')
       icon={<Bell className="h-5 w-5" />}
       tabs={pageTabs}
       activeTab={activeTab}
@@ -91,10 +93,10 @@ export function AlertManager() {
       metrics={(
         <StatStrip
           items={[
-            { label: '告警规则', value: rules.length, color: 'blue' },
-            { label: '触发中', value: alerts.filter((e) => e.status === 'firing').length, color: 'red' },
-            { label: '今日告警', value: alerts.length, color: 'amber' },
-            { label: '已恢复', value: alerts.filter((e) => e.status === 'resolved').length, color: 'emerald' },
+            { label: t('alert.tab.rules'), value: rules.length, color: 'blue' },
+            { label: t('monitor.firing'), value: alerts.filter((e) => e.status === 'firing').length, color: 'red' },
+            { label: t('monitor.alertmanager.s240597'), value: alerts.length, color: 'amber' },
+            { label: t('kubernetes.deployment.resumed'), value: alerts.filter((e) => e.status === 'resolved').length, color: 'emerald' },
           ]}
         />
       )}
@@ -117,8 +119,8 @@ export function AlertManager() {
     >
       <Card className="dg-card">
         <CardHeader className="pb-2">
-          <CardTitle className="text-[var(--dg-text-primary)]">告警趋势</CardTitle>
-          <CardDescription className="dg-text-muted">过去24小时告警统计</CardDescription>
+          <CardTitle className="text-[var(--dg-text-primary)]">{t('monitor.alertmanager.s358b05')}</CardTitle>
+          <CardDescription className="dg-text-muted">{t('monitor.alertmanager.s615fa6')}</CardDescription>
         </CardHeader>
         <CardContent>
           <div className="h-[200px]">
@@ -151,7 +153,7 @@ export function AlertManager() {
                   stroke="#ef4444"
                   fillOpacity={1}
                   fill="url(#colorCritical)"
-                  name="严重"
+                  name=t('monitor.critical')
                 />
                 <Area
                   type="monotone"
@@ -159,7 +161,7 @@ export function AlertManager() {
                   stroke="#f59e0b"
                   fillOpacity={1}
                   fill="url(#colorWarning)"
-                  name="警告"
+                  name=t('common.warning')
                 />
               </AreaChart>
             </ResponsiveContainer>