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/KubectlTerminal.tsx

@@ -11,6 +11,7 @@ import 'xterm/css/xterm.css';
 import { Terminal, Maximize2, Minimize2, X, Loader2 } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { useUserStore } from '@/store';
+import { useTranslation } from 'react-i18next';
 
 interface KubectlTerminalProps {
   open: boolean;
@@ -20,6 +21,7 @@ interface KubectlTerminalProps {
 }
 
 export function KubectlTerminal({ open, onOpenChange, clusterId, clusterName }: KubectlTerminalProps) {
+  const { t } = useTranslation();
   const containerRef = useRef<HTMLDivElement>(null);
   const termRef = useRef<XTerm | null>(null);
   const wsRef = useRef<WebSocket | null>(null);
@@ -106,12 +108,12 @@ export function KubectlTerminal({ open, onOpenChange, clusterId, clusterName }:
 
     ws.onclose = () => {
       setConnected(false);
-      term.write('\r\n\x1b[31m[连接已断开]\x1b[0m\r\n');
+      term.write(t('kubernetes.kubectlterminal.sf4ee00'));
     };
 
     ws.onerror = () => {
-      setError('WebSocket 连接失败');
-      term.write('\r\n\x1b[31m[连接发生错误]\x1b[0m\r\n');
+      setError(t('kubernetes.kubectlterminal.s5b4a67'));
+      term.write(t('kubernetes.kubectlterminal.sc81077'));
     };
 
     return () => {
@@ -174,7 +176,7 @@ export function KubectlTerminal({ open, onOpenChange, clusterId, clusterName }:
         style={fullscreen ? { maxWidth: '100vw', width: '100vw', height: '100vh' } : { maxWidth: '900px', width: '90vw' }}
       >
         <DialogTitle className="sr-only">kubectl — {clusterName}</DialogTitle>
-        <DialogDescription className="sr-only">Kubernetes 集群命令行终端</DialogDescription>
+        <DialogDescription className="sr-only">{t('kubernetes.kubectlterminal.s66981e')}</DialogDescription>
 
         {/* 头部 */}
         <div className="flex items-center justify-between px-4 py-2 border-b border-[var(--dg-border)]">