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/kubernetes/CapacityPage.tsx

@@ -13,8 +13,10 @@ import { kubernetesApi } from '@/api';
 import { PageShell } from '@/components/layout/PageShell';
 import { ContentPanel } from '@/components/layout/ContentPanel';
 import type { JsonData } from '@/types/common';
+import { useTranslation } from 'react-i18next';
 
 export default function CapacityPage() {
+  const { t } = useTranslation();
   const { clusterCode } = useParams<{ clusterCode: string }>();
   const navigate = useNavigate();
   const [loading, setLoading] = useState(false);
@@ -76,8 +78,8 @@ export default function CapacityPage() {
   return (
     <PageShell
       variant="list"
-      title="资源容量分析"
-      subtitle={clusterName ? `${clusterName} · Deployment 资源请求与限制` : 'Deployment 资源请求与限制'}
+      title=t('kubernetes.capacitypage.s4e67a9')
+      subtitle={clusterName ? t('kubernetes.capacitypage.sd54408', { clusterName: clusterName }) : t('kubernetes.capacitypage.s6a1128')}
       icon={<BarChart3 className="h-5 w-5" />}
       actions={(
         <>
@@ -88,9 +90,9 @@ export default function CapacityPage() {
             </SelectContent>
           </Select>
           <Select value={selectedNs} onValueChange={setSelectedNs}>
-            <SelectTrigger className="w-32 h-9 dg-input"><SelectValue placeholder="所有命名空间" /></SelectTrigger>
+            <SelectTrigger className="w-32 h-9 dg-input"><SelectValue placeholder=t('kubernetes.capacitypage.s58173b') /></SelectTrigger>
             <SelectContent>
-              <SelectItem value="all">所有命名空间</SelectItem>
+              <SelectItem value="all">{t('kubernetes.capacitypage.s58173b')}</SelectItem>
               {namespaces.map(n => <SelectItem key={n} value={n}>{n}</SelectItem>)}
             </SelectContent>
           </Select>
@@ -109,9 +111,9 @@ export default function CapacityPage() {
           <Table>
             <TableHeader><TableRow className="border-[var(--dg-border)] hover:bg-transparent">
               <TableHead className="dg-text-secondary">Deployment</TableHead>
-              <TableHead className="dg-text-secondary">命名空间</TableHead>
-              <TableHead className="dg-text-secondary">副本</TableHead>
-              <TableHead className="dg-text-secondary">容器</TableHead>
+              <TableHead className="dg-text-secondary">{t('k8s.column.namespace')}</TableHead>
+              <TableHead className="dg-text-secondary">{t('kubernetes.capacitypage.s0428b3')}</TableHead>
+              <TableHead className="dg-text-secondary">{t('k8s.pods.containers')}</TableHead>
               <TableHead className="dg-text-secondary"><Cpu className="h-3 w-3 inline mr-1" />CPU Req</TableHead>
               <TableHead className="dg-text-secondary"><Cpu className="h-3 w-3 inline mr-1" />CPU Lim</TableHead>
               <TableHead className="dg-text-secondary"><HardDrive className="h-3 w-3 inline mr-1" />Mem Req</TableHead>