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/deploy/FileBrowserDialog.tsx

@@ -1,4 +1,5 @@
 import { useEffect, useState } from 'react';
+import { useTranslation } from 'react-i18next';
 import {
   Dialog,
   DialogContent,
@@ -19,7 +20,6 @@ import {
 import { cn } from '@/lib/utils';
 import { pipelineApi } from '@/api';
 import { useUserStore } from '@/store';
-import { useTranslation } from 'react-i18next';
 
 interface FileItem {
   name: string;
@@ -58,12 +58,12 @@ export function FileBrowserDialog({
   runId,
   buildNumber,
 }: FileBrowserDialogProps) {
-  const { t } = useTranslation();
   const [listing, setListing] = useState<ListingData | null>(null);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState('');
   const [currentPath, setCurrentPath] = useState('');
   const [fullscreen, setFullscreen] = useState(false);
+  const { t } = useTranslation();
 
   // 加载目录
   const loadDir = async (path: string) => {
@@ -75,7 +75,7 @@ export function FileBrowserDialog({
       setListing(data);
       setCurrentPath(data?.current || '');
     } catch (err) {
-      setError(err?.message || t('common.loadFailed'));
+      setError(err?.message || t('deploy.toast.loadFailed'));
       setListing(null);
     } finally {
       setLoading(false);
@@ -115,7 +115,7 @@ export function FileBrowserDialog({
         )}
         style={fullscreen ? { maxWidth: '100vw', width: '100vw', height: '100vh' } : { maxWidth: '700px', width: '85vw' }}
       >
-        <DialogTitle className="sr-only">文件浏览器 #{buildNumber}</DialogTitle>
+        <DialogTitle className="sr-only">{t('deploy.pipeline.fileBrowser', { buildNumber })}</DialogTitle>
         <DialogDescription className="sr-only">{t('deploy.pipeline.buildDirFiles')}</DialogDescription>
 
         {/* Header */}
@@ -123,7 +123,7 @@ export function FileBrowserDialog({
           <div className="flex items-center gap-2 min-w-0">
             <FolderOpen className="h-4 w-4 text-[var(--dg-text-secondary)] shrink-0" />
             <span className="text-[var(--dg-text-primary)] font-medium text-sm">
-              #{buildNumber} 工作区文件
+              #{buildNumber} {t('deploy.fileBrowser.workspaceFiles')}
             </span>
           </div>
           <div className="flex items-center gap-1">
@@ -172,7 +172,7 @@ export function FileBrowserDialog({
         <div className="overflow-y-auto" style={{ height: fullscreen ? 'calc(100vh - 110px)' : '420px' }}>
           {loading && (
             <div className="flex items-center justify-center h-full text-[var(--dg-text-muted)] text-sm">
-              加载中...
+              {t('common.loading')}
             </div>
           )}
 
@@ -186,7 +186,7 @@ export function FileBrowserDialog({
             <table className="w-full text-sm">
               <thead className="sticky top-0 bg-[var(--dg-bg-primary)] border-b border-[var(--dg-border)]">
                 <tr className="text-left text-[var(--dg-text-muted)] text-xs">
-                  <th className="py-2 pl-4 pr-2 font-medium">{t('common.name')}</th>
+                  <th className="py-2 pl-4 pr-2 font-medium">{t('deploy.table.name')}</th>
                   <th className="py-2 px-2 font-medium w-24 text-right">{t('deploy.table.size')}</th>
                   <th className="py-2 pr-4 pl-2 font-medium w-40 hidden sm:table-cell">{t('deploy.table.modifyTime')}</th>
                   <th className="py-2 pr-4 pl-2 font-medium w-16" />
@@ -245,7 +245,7 @@ export function FileBrowserDialog({
                       <button
                         onClick={(e) => { e.stopPropagation(); downloadFile(file); }}
                         className="p-1 rounded hover:bg-[var(--dg-bg-hover)] text-[var(--dg-text-secondary)] hover:text-white"
-                        title=t('common.download')
+                        title={t('deploy.label.download')}
                       >
                         <Download className="h-3.5 w-3.5" />
                       </button>