feat(i18n): 安全批量转换 135 文件 — 覆盖率 34%→62%

使用 i18n.t() 全局方式（避免 hook 定位问题）:
- 288 目标文件中 135 个成功转换
- 2228 处中文替换为 i18n.t() 调用
- 1006 个新翻译 key 添加到 zh-CN.json + en-US.json
- 词典总量: 3554 keys (22 namespaces)
- tsc 零错误 + Vite 构建成功
- 6 个含代码示例/数据字符串的文件安全回退

frontend/src/components/system/replay/export-audit.ts

@@ -2,6 +2,7 @@
 
 import type { ReplaySessionMeta, CommandBookmark } from './replay-utils';
 import { isHighRiskCommand } from './replay-utils';
+import i18n from '@/i18n';
 
 // downloadBlob 触发浏览器下载 // Logan.Li
 function downloadBlob(blob: Blob, filename: string) {
@@ -22,7 +23,7 @@ function escapeCsv(s: string): string {
 // exportAuditReportCsv 导出会话审计报告 CSV // Logan.Li
 export function exportAuditReportCsv(meta: ReplaySessionMeta, commands: CommandBookmark[]) {
   const lines: string[] = [
-    '# 终端会话审计报告',
+    i18n.t('system.exportauditts.s3cb7eb59'),
     `会话ID,${meta.id}`,
     `用户,${escapeCsv(meta.username || '')}`,
     `目标主机,${escapeCsv(meta.server_name || '')}`,
@@ -32,7 +33,7 @@ export function exportAuditReportCsv(meta: ReplaySessionMeta, commands: CommandB
     `时长(秒),${meta.duration || 0}`,
     `录制大小,${meta.record_size || 0}`,
     '',
-    '时间偏移,命令,高危',
+    i18n.t('system.exportauditts.s7a85eed7'),
   ];
   for (const c of commands) {
     lines.push(`${c.label},${escapeCsv(c.command)},${c.highRisk ? '是' : '否'}`);
@@ -54,7 +55,7 @@ export interface CommandExportRow {
 
 // exportCommandsListCsv 导出命令列表 CSV // Logan.Li
 export function exportCommandsListCsv(commands: CommandExportRow[]) {
-  const lines: string[] = ['时间,用户,命令,输出大小,会话ID,高危'];
+  const lines: string[] = [i18n.t('system.exportauditts.s6e047305')];
   for (const c of commands) {
     const ts = c.timestamp || c.created_at || '';
     const highRisk = isHighRiskCommand(c.command || '');

frontend/src/components/system/useAuditSettings.ts

@@ -2,6 +2,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { toast } from 'sonner';
 import { auditSettingsApi, type AuditSettings } from '@/api';
+import i18n from '@/i18n';
 
 const RETENTION_OPTIONS = [7, 15, 30, 90, 180, 365] as const;
 
@@ -20,7 +21,7 @@ export function useAuditSettings() {
       setRetentionDays(String(data.retention_days || 180));
       setRecordAll(data.record_all !== false);
     } catch {
-      toast.error('加载审计设置失败');
+      toast.error(i18n.t('system.useauditsetting.s32e8a76e'));
     } finally {
       setLoading(false);
     }
@@ -33,7 +34,7 @@ export function useAuditSettings() {
   const handleApply = async () => {
     const days = Number(retentionDays);
     if (!RETENTION_OPTIONS.includes(days as (typeof RETENTION_OPTIONS)[number])) {
-      toast.error('请选择有效的保留天数');
+      toast.error(i18n.t('system.useauditsetting.s51680af0'));
       return;
     }
     setApplying(true);
@@ -52,7 +53,7 @@ export function useAuditSettings() {
           : `已应用 ${days} 天保留策略，暂无超期记录需清理`,
       );
     } catch (e: unknown) {
-      toast.error(e instanceof Error ? e.message : '应用失败');
+      toast.error(e instanceof Error ? e.message : i18n.t('kubernetes.msg.applyFailed'));
     } finally {
       setApplying(false);
     }
@@ -66,7 +67,7 @@ export function useAuditSettings() {
       try {
         const s = JSON.parse(settings.last_cleanup_summary) as { total?: number };
         if (typeof s.total === 'number') {
-          detail = s.total > 0 ? `，清理 ${s.total} 条` : '，无超期记录';
+          detail = s.total > 0 ? `，清理 ${s.total} 条` : i18n.t('system.useauditsetting.s7d55bd57');
         }
       } catch {
         // ignore

frontend/src/components/system/useLdapManagement.ts

@@ -4,6 +4,7 @@ import { useConfirm } from '@/components/ui/confirm-dialog';
 import { ldapApi } from '@/api';
 import type { LdapFormData } from './SystemSettingsTab';
 import type { JsonData } from '@/types/common';
+import i18n from '@/i18n';
 
 /**
  * useLdapManagement — 封装 SystemManager 中所有 LDAP 相关状态与业务逻辑
@@ -103,9 +104,9 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
     try {
       await ldapApi.updateConfig(ldapForm);
       const res = await ldapApi.testConnection();
-      setLdapTestResult(res?.message || (res?.success ? '连接成功' : '连接失败'));
+      setLdapTestResult(res?.message || (res?.success ? i18n.t('aiops.llmTestSuccess') : i18n.t('aiops.llmTestFailed')));
     } catch (error) {
-      setLdapTestResult(error?.message || '连接失败');
+      setLdapTestResult(error?.message || i18n.t('aiops.llmTestFailed'));
     } finally {
       setLdapTesting(false);
     }
@@ -147,7 +148,7 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
       if (msg.includes('Already Exists') || msg.includes('68')) {
         toast.error(`OU "${ouForm.ou_name}" 已存在，请使用其他名称`);
       } else {
-        toast.error('创建失败: ' + msg);
+        toast.error(i18n.t('system.useldapmanageme.sa2bddca3') + msg);
       }
     } finally { setLdapSaving(false); }
   };
@@ -160,20 +161,20 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
       setCreateUserOpen(false);
       setNewUser({ username: '', password: '', display_name: '', email: '', ou_dn: '' });
       await loadLdapOUUsers(selectedOUDN);
-    } catch (e) { toast.error(e?.message || '创建失败'); }
+    } catch (e) { toast.error(e?.message || i18n.t('monitor.dashboard.custom.toastCreateFailed')); }
     finally { setLdapSaving(false); }
   };
 
   /** 删除 LDAP 条目 // Logan.Li */
   const handleDeleteLDAPEntry = async (dn: string, silent = false) => {
     if (!silent) {
-      const ok = await confirm({ title: '删除 LDAP 条目', description: `确定删除 ${dn}？`, confirmText: '删除', variant: 'destructive' });
+      const ok = await confirm({ title: i18n.t('system.useldapmanageme.s9724378b'), description: `确定删除 ${dn}？`, confirmText: i18n.t('kubernetes.storage.delete2'), variant: 'destructive' });
       if (!ok) return;
     }
     try {
       await ldapApi.deleteUser(dn);
       if (!silent) await loadLdapOUUsers(selectedOUDN);
-    } catch (e) { if (!silent) toast.error(e?.message || '删除失败'); }
+    } catch (e) { if (!silent) toast.error(e?.message || i18n.t('kubernetes.msg.deleteFailed2')); }
   };
 
   /** 打开 LDAP 用户编辑 // Logan.Li */
@@ -189,7 +190,7 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
       await ldapApi.updateUser({ dn: editLdapUser.dn, ...editLdapForm });
       setEditLdapUser(null);
       await loadLdapOUUsers(selectedOUDN);
-    } catch (e) { toast.error(e?.message || '修改失败'); }
+    } catch (e) { toast.error(e?.message || i18n.t('common.profilepagetsx.s5badb3ba')); }
   };
 
   /** LDAP 账号验证测试 // Logan.Li */
@@ -200,7 +201,7 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
       const res = await ldapApi.testConnection({ test_user: ldapTestUser, test_password: ldapTestPass });
       setLdapUserTestResult(res);
     } catch (e) {
-      setLdapUserTestResult({ success: false, message: e?.message || '验证失败' });
+      setLdapUserTestResult({ success: false, message: e?.message || i18n.t('system.useldapmanageme.se441b11e') });
     } finally { setLdapUserTesting(false); }
   };
 
@@ -233,11 +234,11 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
     } else if (opts?.importAll) {
       selected = ldapUsers;
     } else {
-      toast.error('请至少选择一个用户');
+      toast.error(i18n.t('system.useldapmanageme.sa8ca9651'));
       return;
     }
     if (selected.length === 0) {
-      toast.error('没有可导入的用户');
+      toast.error(i18n.t('system.useldapmanageme.sd196a1c0'));
       return;
     }
     setImporting(true);
@@ -263,8 +264,8 @@ export function useLdapManagement(onUsersChanged: () => Promise<void> | void) {
       setSelectedLDAPUsers([]);
       await onUsersChanged();
     } catch (error: unknown) {
-      const errMsg = error instanceof Error ? error.message : '未知错误';
-      const result = { code: 500, message: '导入失败: ' + errMsg };
+      const errMsg = error instanceof Error ? error.message : i18n.t('monitor.dashboard.agent.toast.unknownError');
+      const result = { code: 500, message: i18n.t('system.useldapmanageme.s45332d13') + errMsg };
       if (opts?.setResult) {
         opts.setResult(result);
       } else {