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/ResetPasswordDialog.tsx

@@ -9,6 +9,7 @@ import {
 import { Key, Loader2 } from 'lucide-react';
 import { useToast } from '@/hooks/use-toast';
 import { userApi } from '@/api';
+import { useTranslation } from 'react-i18next';
 
 interface ResetPasswordDialogProps {
   user: { id: number | string; username?: string; nickname?: string; authSource?: string } | null;
@@ -16,6 +17,7 @@ interface ResetPasswordDialogProps {
 }
 
 export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps) {
+  const { t } = useTranslation();
   const { toast } = useToast();
   const [password, setPassword] = useState('');
   const [confirm, setConfirm] = useState('');
@@ -29,12 +31,12 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
     setSaving(true);
     try {
       await userApi.resetUserPassword(user.id, password);
-      toast({ title: '密码已重置', description: `用户 ${user.nickname || user.username} 的新密码已生效` });
+      toast({ title: t('system.passwordReset'), description: `用户 ${user.nickname || user.username} 的新密码已生效` });
       setPassword('');
       setConfirm('');
       onClose();
     } catch (e: any) {
-      toast({ title: '重置失败', description: e?.message || String(e), variant: 'destructive' });
+      toast({ title: t('system.resetFailed'), description: e?.message || String(e), variant: 'destructive' });
     } finally {
       setSaving(false);
     }
@@ -46,7 +48,7 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
         <DialogHeader>
           <DialogTitle className="text-[var(--dg-text-primary)] flex items-center gap-2">
             <Key className="h-5 w-5 text-[var(--dg-blue)]" />
-            重置密码
+            {t('system.resetPassword')}
           </DialogTitle>
           <DialogDescription className="text-[var(--dg-text-muted)]">
             {user ? `为「${user.nickname || user.username}」设置新密码` : ''}
@@ -54,26 +56,26 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
         </DialogHeader>
 
         {isLdap ? (
-          <p className="text-sm dg-text-yellow/90 py-2">LDAP 用户请在 LDAP 目录中管理密码，不支持本地重置。</p>
+          <p className="text-sm dg-text-yellow/90 py-2">{t('system.ldapResetHint')}</p>
         ) : (
           <div className="space-y-3 py-1">
             <div>
-              <Label className="text-xs text-[var(--dg-text-muted)]">新密码</Label>
+              <Label className="text-xs text-[var(--dg-text-muted)]">{t('system.newPassword')}</Label>
               <Input
                 type="password"
                 value={password}
                 onChange={e => setPassword(e.target.value)}
-                placeholder="至少 6 位"
+                placeholder={t('system.passwordMinLen')}
                 className="mt-1 h-9 bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)]"
               />
             </div>
             <div>
-              <Label className="text-xs text-[var(--dg-text-muted)]">确认密码</Label>
+              <Label className="text-xs text-[var(--dg-text-muted)]">{t('system.userConfirmPassword')}</Label>
               <Input
                 type="password"
                 value={confirm}
                 onChange={e => setConfirm(e.target.value)}
-                placeholder="再次输入新密码"
+                placeholder={t('system.confirmNewPassword')}
                 className="mt-1 h-9 bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)]"
               />
             </div>
@@ -81,7 +83,7 @@ export function ResetPasswordDialog({ user, onClose }: ResetPasswordDialogProps)
         )}
 
         <DialogFooter>
-          <Button variant="outline" className="border-[var(--dg-border)]" onClick={onClose}>取消</Button>
+          <Button variant="outline" className="border-[var(--dg-border)]" onClick={onClose}>{t('common.cancel')}</Button>
           {!isLdap && (
             <Button onClick={handleReset} disabled={!canSubmit || saving} className="bg-[var(--dg-blue)] hover:opacity-90">
               {saving ? <Loader2 className="h-4 w-4 animate-spin mr-1" /> : null}