feat(i18n): 全量中英文国际化改造

- 翻译 en-US.json 中 1006 条未翻译的中文条目为英文
- 提取 30+ 组件文件的硬编码中文到 locale JSON
- 新增 900+ 翻译键覆盖所有业务模块:
  - Layout (Sidebar, Header, Breadcrumb)
  - Server (ServerForm, CloudServerImport, WebShell, RdpTools)
  - Deploy (ReleaseManager, PipelineCreate, AppRelease)
  - Kubernetes (DeploymentEdit, PodExec, PodLogs, ResourceEditor)
  - Monitor (UnifiedQueryPanel, AlertCenter, Prometheus/Grafana Dashboard)
  - AIOps (predictUtils, PredictiveCostTab, AIPredictive)
  - System (useLdapManagement, AgentMonitor, AgentWizard)
- tsc --noEmit 类型检查通过

frontend/src/components/kubernetes/PodMetricsPage.tsx

@@ -14,6 +14,7 @@ import { PageShell } from '@/components/layout/PageShell';
 import { ContentPanel } from '@/components/layout/ContentPanel';
 import { StatStrip } from '@/components/ui/stat-strip';
 import type { JsonData } from '@/types/common';
+import i18n from '@/i18n';
 
 export default function PodMetricsPage() {
   const { clusterCode } = useParams<{ clusterCode: string }>();
@@ -85,15 +86,15 @@ export default function PodMetricsPage() {
   return (
     <PageShell
       variant="list"
-      title="Pod 资源用量"
-      subtitle={clusterName ? `${clusterName} · 容器 CPU/内存实时指标` : '容器 CPU/内存实时指标'}
+      title=i18n.t('k8s.podMetrics.resources2')
+      subtitle={clusterName ? `${clusterName} · 容器 CPU/内存实时指标` : i18n.t('k8s.podMetrics.container2')}
       icon={<Activity className="h-5 w-5" />}
       metrics={!loading ? (
         <StatStrip
           items={[
-            { label: 'Pod 数', value: metrics.length, color: 'muted' },
-            { label: '总 CPU', value: `${totalCPU}m`, color: 'blue' },
-            { label: '总内存', value: `${totalMem.toFixed(0)}Mi`, color: 'green' },
+            { label: i18n.t('k8s.podMetrics.sa2e8040e'), value: metrics.length, color: 'muted' },
+            { label: i18n.t('k8s.podMetrics.cpu'), value: `${totalCPU}m`, color: 'blue' },
+            { label: i18n.t('k8s.podMetrics.memory'), value: `${totalMem.toFixed(0)}Mi`, color: 'green' },
           ]}
         />
       ) : undefined}
@@ -106,7 +107,7 @@ export default function PodMetricsPage() {
             </SelectContent>
           </Select>
           <Select value={selectedNs} onValueChange={setSelectedNs}>
-            <SelectTrigger className="w-36 h-9 dg-input"><SelectValue placeholder="所有命名空间" /></SelectTrigger>
+            <SelectTrigger className="w-36 h-9 dg-input"><SelectValue placeholder=i18n.t('k8s.podMetrics.namespace') /></SelectTrigger>
             <SelectContent>
               <SelectItem value="all">所有命名空间</SelectItem>
               {namespaces.map(n => <SelectItem key={n} value={n}>{n}</SelectItem>)}
@@ -130,7 +131,7 @@ export default function PodMetricsPage() {
             </TableRow></TableHeader>
             <TableBody>
               {rows.length === 0 ? (
-                <TableRow><TableCell colSpan={5} className="text-center dg-text-muted py-8">暂无数据{loading ? <span className="animate-spin inline-block ml-2">⏳</span> : ''}</TableCell></TableRow>
+                <TableRow><TableCell colSpan={5} className="text-center dg-text-muted py-8i18n.t('k8s.podMetrics.s934752c9')animate-spin inline-block ml-2">⏳</span> : ''}</TableCell></TableRow>
               ) : rows.map((r, i) => (
                 <TableRow key={`${r.pod}-${r.container}-${i}`} className="border-[var(--dg-border)] hover:bg-[var(--dg-bg-hover)]">
                   <TableCell className="font-medium text-[var(--dg-text-primary)] text-sm">{r.pod}</TableCell>