feat(i18n): 安全审计模块全量国际化 — 7 文件硬编码中文改翻译键 + audit 命名空间(89 键)

迁移文件:
- AuditOperationsTab.tsx — 操作审计(搜索/筛选/虚拟滚动表格/详情弹窗/统计弹窗)
- TerminalAuditTab.tsx — 终端审计子标签(在线/历史/命令)
- LoginLogsTab.tsx — 登录日志(DataTable + 状态筛选 + 登录方式)
- ActiveSessionsPanel.tsx — 在线会话(自动刷新 + 阻断确认 + 实时监控)
- HistorySessionsPanel.tsx — 历史会话(回放/下载录制)
- SessionCommandsPanel.tsx — 会话命令(虚拟滚动)
- helpers.tsx — formatDuration/getStatusBadge (i18n.t 非组件模式)

翻译键: audit 命名空间 89 键 (operations/login/terminal 三子域)
  + common.duration 时长单位(秒/分/时)
总键数: 481→610, 命名空间: 8→9 (common/menu/header/login/dashboard/server/alert/approval/audit)
zh-CN/en-US 完全对齐, tsc -b=0, npm build✓, 17/17 测试通过

frontend/src/pages/audit/terminal-audit/ActiveSessionsPanel.tsx

@@ -1,6 +1,7 @@
 // 终端审计 — 在线会话子面板 // Logan.Li
 
 import { useState, useEffect } from 'react';
+import { useTranslation } from 'react-i18next';
 import { Card, CardContent } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
@@ -48,6 +49,7 @@ function ActiveSessionRow({
   onKill: (id: number, username: string) => void;
   onMonitor: (id: number) => void;
 }) {
+  const { t } = useTranslation();
   const elapsed = useElapsedTimer(session.start_time);
 
   return (
@@ -83,7 +85,7 @@ function ActiveSessionRow({
             size="icon"
             className="h-8 w-8 text-slate-400 hover:text-red-400 hover:bg-slate-800"
             onClick={() => onKill(session.id, session.username)}
-            title="阻断会话"
+            title={t('audit.terminal.killTitle')}
           >
             <XOctagon className="h-4 w-4" />
           </Button>
@@ -92,7 +94,7 @@ function ActiveSessionRow({
             size="icon"
             className="h-8 w-8 text-slate-400 hover:text-blue-400 hover:bg-slate-800"
             onClick={() => onMonitor(session.id)}
-            title="实时查看"
+            title={t('audit.terminal.liveMonitor')}
           >
             <Eye className="h-4 w-4" />
           </Button>
@@ -103,6 +105,7 @@ function ActiveSessionRow({
 }
 
 export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: ActiveSessionsPanelProps) {
+  const { t } = useTranslation();
   const confirm = useConfirm();
   const { killMutation } = useTerminalSessionMutations();
   const { data: sessions = [], isLoading, refetch } = useTerminalSessions({
@@ -139,9 +142,9 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
 
   const handleKill = async (id: number, username: string) => {
     const ok = await confirm({
-      title: '阻断会话',
-      description: `确认强制断开用户「${username}」的当前会话吗？`,
-      confirmText: '阻断',
+      title: t('audit.terminal.killTitle'),
+      description: t('audit.terminal.killConfirm', { user: username }),
+      confirmText: t('audit.terminal.killConfirmBtn'),
       variant: 'destructive',
     });
     if (!ok) return;
@@ -163,7 +166,7 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
         <div className="relative w-64">
           <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-slate-500" />
           <Input
-            placeholder="搜索用户/服务器..."
+            placeholder={t('audit.terminal.searchUserServer')}
             value={keyword}
             onChange={(e) => setKeyword(e.target.value)}
             className="pl-9 h-9 bg-slate-800/50 border-slate-700 text-slate-200 placeholder:text-slate-500"
@@ -175,7 +178,7 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
           onClick={() => refetch()}
         >
           <RefreshCw className="h-4 w-4 mr-2" />
-          刷新
+          {t('common.refresh')}
         </Button>
         <Button
           variant={autoRefresh ? 'default' : 'outline'}
@@ -188,7 +191,7 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
             if (autoRefresh) onUserToggledOff();
             setAutoRefresh(!autoRefresh);
           }}
-          title={autoRefresh ? `每 ${REFRESH_SEC}s 自动刷新 · 点击关闭` : '点击开启自动刷新'}
+          title={autoRefresh ? t('audit.terminal.autoRefreshHintOn', { sec: REFRESH_SEC }) : t('audit.terminal.autoRefreshHintOff')}
         >
           {autoRefresh ? (
             <>
@@ -198,7 +201,7 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
           ) : (
             <>
               <TimerOff className="h-4 w-4 mr-2" />
-              自动刷新
+              {t('audit.terminal.autoRefresh')}
             </>
           )}
         </Button>
@@ -214,20 +217,20 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
             ) : filtered.length === 0 ? (
               <div className="flex flex-col items-center justify-center py-16 text-slate-500">
                 <Activity className="h-8 w-8 mb-3 opacity-40" />
-                <p className="text-sm">暂无在线会话</p>
+                <p className="text-sm">{t('audit.terminal.noActive')}</p>
               </div>
             ) : (
               <Table>
                 <TableHeader>
                   <TableRow className="border-slate-800 hover:bg-transparent">
-                    <TableHead className="text-slate-400">ID</TableHead>
-                    <TableHead className="text-slate-400">用户</TableHead>
-                    <TableHead className="text-slate-400">目标服务器</TableHead>
-                    <TableHead className="text-slate-400">端口</TableHead>
-                    <TableHead className="text-slate-400">开始时间</TableHead>
-                    <TableHead className="text-slate-400">时长</TableHead>
-                    <TableHead className="text-slate-400">状态</TableHead>
-                    <TableHead className="text-slate-400 text-right">操作</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.id')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.user')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.targetServer')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.port')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.startTime')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.duration')}</TableHead>
+                    <TableHead className="text-slate-400">{t('audit.terminal.col.status')}</TableHead>
+                    <TableHead className="text-slate-400 text-right">{t('audit.terminal.col.actions')}</TableHead>
                   </TableRow>
                 </TableHeader>
                 <TableBody>
@@ -244,4 +247,4 @@ export function ActiveSessionsPanel({ userToggledOff, onUserToggledOff }: Active
       <LiveMonitorDialog open={monitorOpen} onOpenChange={setMonitorOpen} sessionId={monitorSessionId} />
     </>
   );
-}
+}