fix(i18n): 回退到稳定的 32% 覆盖率状态 (tsc + Vite 构建通过)

批量转换脚本引入的语法错误已回退，保留稳定的 i18n 转换:
- 翻译词典: 22 namespaces, 3600+ keys
- 已接入: 145+ 文件 (Dashboard/Login/K8s 主页面/Monitor/System/Deploy)
- 语言切换器在 Header 中可用 (🇨🇳/🇺🇸)
- tsc 零错误, Vite 构建成功

frontend/src/components/system/LiveMonitorDialog.tsx

@@ -14,6 +14,7 @@ import { Loader2, Maximize2, Minimize2, Monitor, X } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { attachTerminalResize, mountXterm } from '@/lib/xterm-utils';
 import { useUserStore } from '@/store';
+import { useTranslation } from 'react-i18next';
 
 interface SessionInfo {
   session_id: number;
@@ -32,6 +33,7 @@ interface LiveMonitorProps {
 }
 
 export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }: LiveMonitorProps) {
+  const { t } = useTranslation();
   const containerRef = useRef<HTMLDivElement>(null);
   const termRef = useRef<XTerm | null>(null);
   const fitRef = useRef<FitAddon | null>(null);
@@ -124,11 +126,11 @@ export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }
       }
     };
 
-    ws.onerror = () => setConnectError('WebSocket 连接失败');
+    ws.onerror = () => setConnectError(t('aiops.wsConnectFailed'));
 
     ws.onclose = (e) => {
       if (!didOpen) {
-        setConnectError(`连接失败 (code=${e.code}): ${e.reason || '认证失败或网络问题'}`);
+        setConnectError(`连接失败 (code=${e.code}): ${e.reason || t('aiops.authOrNetwork')}`);
       }
       setConnected(false);
       term.writeln('\r\n\x1b[33m[审计监控] 连接已断开\x1b[0m');
@@ -136,7 +138,7 @@ export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }
 
     const timeout = setTimeout(() => {
       if (!didOpen) {
-        setConnectError('连接超时 — 请确认已登录且有活跃会话');
+        setConnectError(t('aiops.connectTimeoutActive'));
         ws.close();
       }
     }, 5000);
@@ -194,14 +196,14 @@ export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }
             : { maxWidth: '960px', width: '92vw' }
         }
       >
-        <DialogTitle className="sr-only">终端实时监控</DialogTitle>
-        <DialogDescription className="sr-only">审计在线 WebSSH 会话</DialogDescription>
+        <DialogTitle className="sr-only">{t('system.terminalLiveMonitor')}</DialogTitle>
+        <DialogDescription className="sr-only">{t('system.auditWebssh')}</DialogDescription>
 
         {/* 工具栏 — 与 TerminalDialog 一致 // Logan.Li */}
         <div className="flex items-center justify-between px-4 py-2 border-b border-[var(--dg-border)]">
           <div className="flex items-center gap-2 text-sm min-w-0 flex-wrap">
             <Monitor className="h-4 w-4 dg-text-green shrink-0" />
-            <span className="text-[var(--dg-text-primary)] font-medium">终端实时监控</span>
+            <span className="text-[var(--dg-text-primary)] font-medium">{t('system.terminalLiveMonitor')}</span>
             {meta && (
               <span className="text-[var(--dg-text-muted)] truncate">
                 {meta.username} · {meta.server_name} ({meta.server_ip}) · {formatTime(meta.start_time)}
@@ -215,12 +217,12 @@ export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }
             {!connected && !connectError && (
               <Badge variant="outline" className="border-yellow-500/30 dg-text-yellow bg-yellow-500/10 text-xs">
                 <Loader2 className="h-3 w-3 animate-spin mr-1" />
-                连接中
+                {t('common.connecting')}
               </Badge>
             )}
             {connectError && (
               <Badge variant="outline" className="border-red-500/30 dg-text-red bg-red-500/10 text-xs">
-                连接失败
+                {t('system.ldapTestFailed')}
               </Badge>
             )}
           </div>
@@ -229,7 +231,7 @@ export function LiveMonitorDialog({ open, onOpenChange, sessionId, sessionInfo }
               type="button"
               onClick={() => setFullscreen(!fullscreen)}
               className="p-1.5 rounded hover:bg-[var(--dg-bg-hover)] text-[var(--dg-text-secondary)]"
-              title={fullscreen ? '退出全屏' : '全屏'}
+              title={fullscreen ? t('common.exitFullscreen') : t('common.fullscreen')}
             >
               {fullscreen ? <Minimize2 className="h-4 w-4" /> : <Maximize2 className="h-4 w-4" />}
             </button>