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/dashboard/GrafanaPanelContent.tsx

@@ -5,7 +5,6 @@ import { TrendingUp, Loader2, AlertCircle } from 'lucide-react';
 import { LineChart, Line, ResponsiveContainer, XAxis, YAxis, Tooltip, CartesianGrid } from 'recharts';
 import type { Panel } from './GrafanaDashboard';
 import { prometheusProxyApi, promDatasourceApi } from '@/api';
-import { useTranslation } from 'react-i18next';
 
 // 默认 Prometheus URL 缓存
 let _defaultPromURL: string | null = null;
@@ -71,7 +70,6 @@ function parseInstantResult(promResult: any): { labels: Record<string, string>;
 
 /** 渲染面板内容 */
 export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; datasourceUrl?: string }) {
-  const { t } = useTranslation();
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState('');
   const [chartData, setChartData] = useState<{ time: string; value: number }[]>([]);
@@ -84,7 +82,7 @@ export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; da
     try {
       const url = await getDefaultPromURL(datasourceUrl);
       if (!url) {
-        setError(t('monitor.dashboard.prometheus.emptyTitle'));
+        setError('未配置 Prometheus 数据源');
         setLoading(false);
         return;
       }
@@ -102,16 +100,16 @@ export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; da
         });
         const parsed = parseRangeResult(res);
         setChartData(parsed.length > 0 ? parsed : []);
-        if (parsed.length === 0) setError(t('kubernetes.configmap.noData'));
+        if (parsed.length === 0) setError('无数据');
       } else {
         // stat / gauge / table 用即时查询
         const res = await prometheusProxyApi.query(url, panel.query);
         const parsed = parseInstantResult(res);
         setInstantData(parsed);
-        if (parsed.length === 0) setError(t('kubernetes.configmap.noData'));
+        if (parsed.length === 0) setError('无数据');
       }
     } catch (e: any) {
-      setError(e?.message ? String(e.message).slice(0, 80) : t('monitor.grafanapanelcontent.s0d66ed'));
+      setError(e?.message ? String(e.message).slice(0, 80) : '查询失败');
     } finally {
       setLoading(false);
     }
@@ -155,7 +153,7 @@ export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; da
           {unit && <span className="text-sm text-[var(--dg-text-muted)] mt-2">{unit}</span>}
           <div className="flex items-center gap-1 mt-2 dg-text-green text-sm">
             <TrendingUp className="w-4 h-4" />
-            <span>{t('common.realtime')}</span>
+            <span>实时</span>
           </div>
         </div>
       );
@@ -189,7 +187,7 @@ export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; da
       );
     }
     case 'table': {
-      if (instantData.length === 0) return <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]">{t('kubernetes.configmap.noData')}</div>;
+      if (instantData.length === 0) return <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]">无数据</div>;
       return (
         <div className="overflow-auto max-h-[200px]">
           <table className="w-full text-[11px]">
@@ -218,7 +216,7 @@ export function GrafanaPanelContent({ panel, datasourceUrl }: { panel: Panel; da
     case 'graph':
     default: {
       if (chartData.length === 0) {
-        return <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]">{t('kubernetes.configmap.noData')}</div>;
+        return <div className="text-center py-4 text-xs text-[var(--dg-text-muted)]">无数据</div>;
       }
       return (
         <div className="h-full min-h-[120px]">