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/monitor/log-center/LogAlertsPanel.tsx

@@ -9,10 +9,8 @@ import { useToast } from '@/hooks/use-toast';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { alertApi } from '@/api';
 import { AlertRuleDialog } from '@/components/monitor/AlertRuleDialog';
-import { useTranslation } from 'react-i18next';
 
 export function LogAlertsPanel() {
-  const { t } = useTranslation();
   const { toast } = useToast();
   const confirm = useConfirm();
   const [rules, setRules] = useState<any[]>([]);
@@ -39,14 +37,14 @@ export function LogAlertsPanel() {
   useEffect(() => { load(); }, [load]);
 
   const handleDelete = async (rule: any) => {
-    const ok = await confirm({ title: t('alert.deleteRule'), description: t('monitor.logalertspanel.sf6b982', { rule.name: rule.name }), variant: 'destructive', confirmText: t('common.delete') });
+    const ok = await confirm({ title: '删除规则', description: `删除「${rule.name}」？`, variant: 'destructive', confirmText: '删除' });
     if (!ok) return;
     try {
       await alertApi.deleteRule(rule.id);
-      toast({ title: t('alert.deleted') });
+      toast({ title: '已删除' });
       load();
     } catch (e: any) {
-      toast({ title: t('common.deleteFailed'), description: e?.message || String(e), variant: 'destructive' });
+      toast({ title: '删除失败', description: e?.message || String(e), variant: 'destructive' });
     }
   };
 
@@ -59,7 +57,7 @@ export function LogAlertsPanel() {
   return (
     <div className="space-y-4">
       <div className="flex items-center justify-between">
-        <p className="text-sm text-[var(--dg-text-muted)]">{t('monitor.logalertspanel.s5bc514')}</p>
+        <p className="text-sm text-[var(--dg-text-muted)]">仅保存告警策略（LogQL / Lucene），日志数据仍在外部 Loki / ES</p>
         <div className="flex gap-2">
           <Button variant="outline" size="sm" onClick={load} disabled={loading}>
             <RefreshCw className={`h-4 w-4 mr-1 ${loading ? 'animate-spin' : ''}`} />刷新
@@ -89,7 +87,7 @@ export function LogAlertsPanel() {
                     <Badge variant="outline" className="text-[10px] border-[var(--dg-border)]">{rule.source || 'log'}</Badge>
                     <Badge className={`text-[10px] ${severityColor[rule.severity] || ''}`}>{rule.severity}</Badge>
                     {!rule.enabled && rule.enabled !== undefined && (
-                      <Badge variant="outline" className="text-[10px] text-[var(--dg-text-muted)]">{t('alert.disabled')}</Badge>
+                      <Badge variant="outline" className="text-[10px] text-[var(--dg-text-muted)]">已禁用</Badge>
                     )}
                   </div>
                   <p className="text-[11px] font-mono text-[var(--dg-text-muted)] mt-1 truncate" title={rule.expression}>{rule.expression}</p>