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/datasource/ZabbixDatasourceManager.tsx

@@ -32,7 +32,6 @@ import { toast } from 'sonner';
 import { useConfirm } from '@/components/ui/confirm-dialog';
 import { zabbixDatasourceApi } from '@/api';
 import type { JsonData } from '@/types/common';
-import { useTranslation } from 'react-i18next';
 
 interface ZabbixDS {
   id: number;
@@ -60,7 +59,6 @@ const defaultForm = {
 };
 
 export default function ZabbixDatasourceManager() {
-  const { t } = useTranslation();
   const _confirm = useConfirm();
   const [sources, setSources] = useState<ZabbixDS[]>([]);
   const [loading, setLoading] = useState(true);
@@ -80,7 +78,7 @@ export default function ZabbixDatasourceManager() {
       const res: JsonData = await zabbixDatasourceApi.list();
       setSources(res?.data || res || []);
     } catch {
-      toast.error(t('monitor.zabbixdatasourcemanager.s45f817'));
+      toast.error('获取数据源列表失败');
     } finally {
       setLoading(false);
     }
@@ -117,51 +115,51 @@ export default function ZabbixDatasourceManager() {
   };
 
   const handleSave = async () => {
-    if (!form.name.trim()) { toast.error(t('monitor.zabbixdatasourcemanager.s138957')); return; }
-    if (!form.url.trim()) { toast.error(t('monitor.zabbixdatasourcemanager.s2ba385')); return; }
-    if (!form.username.trim()) { toast.error(t('login.usernameRequired')); return; }
-    if (!form.password.trim()) { toast.error(t('login.passwordRequired')); return; }
+    if (!form.name.trim()) { toast.error('请输入数据源名称'); return; }
+    if (!form.url.trim()) { toast.error('请输入 Zabbix API URL'); return; }
+    if (!form.username.trim()) { toast.error('请输入用户名'); return; }
+    if (!form.password.trim()) { toast.error('请输入密码'); return; }
 
     try {
       if (editingId) {
         await zabbixDatasourceApi.update(editingId, form);
-        toast.success(t('monitor.zabbixdatasourcemanager.s8dfdd2'));
+        toast.success('数据源已更新');
       } else {
         await zabbixDatasourceApi.create(form);
-        toast.success(t('monitor.zabbixdatasourcemanager.sa6def0'));
+        toast.success('数据源已创建');
       }
       setDialogOpen(false);
       fetchList();
     } catch (err) {
-      toast.error(err?.message || t('common.operationFailed'));
+      toast.error(err?.message || '操作失败');
     }
   };
 
   const handleDelete = async (ds: ZabbixDS) => {
     const ok = await _confirm({
-      title: t('monitor.deleteDatasource'),
-      description: t('monitor.zabbixdatasourcemanager.sa2b79a', { ds.name: ds.name }),
+      title: '删除数据源',
+      description: `确定删除「${ds.name}」？`,
       variant: 'destructive',
     });
     if (!ok) return;
     try {
       await zabbixDatasourceApi.delete(ds.id);
-      toast.success(t('alert.deleted'));
+      toast.success('已删除');
       fetchList();
-    } catch { toast.error(t('common.deleteFailed')); }
+    } catch { toast.error('删除失败'); }
   };
 
   const handleSetDefault = async (ds: ZabbixDS) => {
     try {
       await zabbixDatasourceApi.setDefault(ds.id);
-      toast.success(t('monitor.zabbixdatasourcemanager.sf0f959', { ds.name: ds.name }));
+      toast.success(`已将「${ds.name}」设为默认`);
       fetchList();
-    } catch { toast.error(t('monitor.zabbixdatasourcemanager.s9f9603')); }
+    } catch { toast.error('设置失败'); }
   };
 
   const handleTest = async () => {
     if (!form.url.trim() || !form.username.trim()) {
-      toast.error(t('monitor.zabbixdatasourcemanager.s1d3562'));
+      toast.error('请填写 URL 和用户名');
       return;
     }
     setTesting(true);
@@ -175,7 +173,7 @@ export default function ZabbixDatasourceManager() {
       const data = res?.data || res;
       setTestResult(data);
     } catch (err) {
-      setTestResult({ success: false, message: err?.message || t('monitor.zabbixdatasourcemanager.s9710d9') });
+      setTestResult({ success: false, message: err?.message || '测试失败' });
     } finally {
       setTesting(false);
     }
@@ -201,7 +199,7 @@ export default function ZabbixDatasourceManager() {
             />
             Zabbix 数据源
           </h2>
-          <p className="text-xs text-[var(--dg-text-muted)]">{t('monitor.zabbixdatasourcemanager.s79e929')}</p>
+          <p className="text-xs text-[var(--dg-text-muted)]">配置 Zabbix API 连接，获取主机监控数据</p>
         </div>
         <Button onClick={openCreate} size="sm">
           <Plus className="w-4 h-4 mr-1" />添加
@@ -212,7 +210,7 @@ export default function ZabbixDatasourceManager() {
         <Card className="bg-[var(--dg-bg-secondary)] border-[var(--dg-border)]">
           <CardContent className="py-12 text-center text-[var(--dg-text-muted)]">
             <Database className="w-12 h-12 mx-auto mb-3 opacity-30" />
-            <p className="text-sm">{t('monitor.zabbixdatasourcemanager.sc9c9bd')}</p>
+            <p className="text-sm">暂无 Zabbix 数据源</p>
             <Button size="sm" className="mt-4" onClick={openCreate}>
               <Plus className="w-4 h-4 mr-1" />添加数据源
             </Button>
@@ -228,15 +226,15 @@ export default function ZabbixDatasourceManager() {
                     <div className="flex items-center gap-2 mb-1">
                       <div className={`w-2 h-2 rounded-full ${ds.status === 1 ? 'bg-emerald-400' : 'bg-[var(--dg-bg-active)]'}`} />
                       <span className="font-medium text-[var(--dg-text-primary)]">{ds.name}</span>
-                      {ds.is_default && <Badge className="bg-amber-500/20 dg-text-yellow text-[10px]"><Star className="w-3 h-3 mr-0.5" />{t('approval.status.default')}</Badge>}
+                      {ds.is_default && <Badge className="bg-amber-500/20 dg-text-yellow text-[10px]"><Star className="w-3 h-3 mr-0.5" />默认</Badge>}
                       {ds.status === 1
-                        ? <Badge className="bg-emerald-500/20 dg-text-green text-[10px]">{t('common.enable')}</Badge>
-                        : <Badge className="bg-[var(--dg-bg-active)]/20 dg-text-secondary text-[10px]">{t('common.disable')}</Badge>}
+                        ? <Badge className="bg-emerald-500/20 dg-text-green text-[10px]">启用</Badge>
+                        : <Badge className="bg-[var(--dg-bg-active)]/20 dg-text-secondary text-[10px]">禁用</Badge>}
                     </div>
                     <div className="text-xs text-[var(--dg-text-muted)] space-x-3">
                       <code className="text-orange-300">{ds.url}</code>
                       <span>用户: {ds.username}</span>
-                      {ds.direct_db && <Badge variant="outline" className="text-[10px]">{t('monitor.zabbixdatasourcemanager.s85260a')}</Badge>}
+                      {ds.direct_db && <Badge variant="outline" className="text-[10px]">直连DB</Badge>}
                     </div>
                   </div>
                   <div className="flex items-center gap-1">
@@ -265,7 +263,7 @@ export default function ZabbixDatasourceManager() {
           <DialogHeader>
             <DialogTitle className="text-[var(--dg-text-primary)] flex items-center gap-2">
               <Database className="h-5 w-5 dg-text-orange" />
-              {editingId ? t('monitor.zabbixdatasourcemanager.sc1c87e') : t('monitor.zabbixdatasourcemanager.sa77d38')}
+              {editingId ? '编辑 Zabbix 数据源' : '新建 Zabbix 数据源'}
             </DialogTitle>
             <DialogDescription>
               配置 Zabbix API 连接，用于主机监控与告警数据获取
@@ -276,14 +274,14 @@ export default function ZabbixDatasourceManager() {
             {/* Name + Default */}
             <div className="grid grid-cols-2 gap-3">
               <div>
-                <Label className="text-xs text-[var(--dg-text-secondary)]">{t('deploy.form.nameStar')}</Label>
-                <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" placeholder=t('monitor.zabbixdatasourcemanager.s9f1e6a')
+                <Label className="text-xs text-[var(--dg-text-secondary)]">名称 *</Label>
+                <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" placeholder="如：生产 Zabbix"
                   value={form.name} onChange={e => updateForm('name', e.target.value)} />
               </div>
               <div className="flex items-end pb-1">
                 <div className="flex items-center gap-2">
                   <Switch checked={form.is_default} onCheckedChange={v => updateForm('is_default', v)} />
-                  <Label className="text-xs cursor-pointer">{t('aiops.llmSetDefault')}</Label>
+                  <Label className="text-xs cursor-pointer">设为默认</Label>
                 </div>
               </div>
             </div>
@@ -307,15 +305,15 @@ export default function ZabbixDatasourceManager() {
                 onClick={() => setShowAuth(!showAuth)}>
                 <div className="flex items-center gap-2">
                   <Shield className="w-4 h-4" />
-                  <span>{t('monitor.zabbixdatasourcemanager.sb47858')}</span>
+                  <span>Zabbix API 认证</span>
                 </div>
                 {showAuth ? <ChevronUp className="w-4 h-4" /> : <ChevronDown className="w-4 h-4" />}
               </button>
               {showAuth && (
                 <div className="px-3 pb-3 space-y-3">
-                  <Input className="h-9 text-sm bg-[var(--dg-bg-primary)]" placeholder=t('monitor.zabbixdatasourcemanager.s04c3dd')
+                  <Input className="h-9 text-sm bg-[var(--dg-bg-primary)]" placeholder="用户名 *"
                     value={form.username} onChange={e => updateForm('username', e.target.value)} />
-                  <Input className="h-9 text-sm bg-[var(--dg-bg-primary)]" type="password" placeholder=t('monitor.zabbixdatasourcemanager.s3140c0')
+                  <Input className="h-9 text-sm bg-[var(--dg-bg-primary)]" type="password" placeholder="密码 *"
                     value={form.password} onChange={e => updateForm('password', e.target.value)} />
                 </div>
               )}
@@ -327,7 +325,7 @@ export default function ZabbixDatasourceManager() {
                 onClick={() => setShowTrends(!showTrends)}>
                 <div className="flex items-center gap-2">
                   <Clock className="w-4 h-4" />
-                  <span>{t('monitor.zabbixdatasourcemanager.s05ef18')}</span>
+                  <span>Trends 设置</span>
                 </div>
                 {showTrends ? <ChevronUp className="w-4 h-4" /> : <ChevronDown className="w-4 h-4" />}
               </button>
@@ -335,24 +333,24 @@ export default function ZabbixDatasourceManager() {
                 <div className="px-3 pb-3 space-y-3">
                   <div className="grid grid-cols-2 gap-3">
                     <div>
-                      <Label className="text-xs text-[var(--dg-text-secondary)]">{t('monitor.zabbixdatasourcemanager.sebfa4e')}</Label>
+                      <Label className="text-xs text-[var(--dg-text-secondary)]">After (天)</Label>
                       <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" type="number" min={0}
                         value={form.trends_after} onChange={e => updateForm('trends_after', parseInt(e.target.value) || 0)} />
                     </div>
                     <div>
-                      <Label className="text-xs text-[var(--dg-text-secondary)]">{t('monitor.zabbixdatasourcemanager.s7fe44f')}</Label>
+                      <Label className="text-xs text-[var(--dg-text-secondary)]">Range (秒)</Label>
                       <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" type="number" min={0}
                         value={form.trends_range} onChange={e => updateForm('trends_range', parseInt(e.target.value) || 0)} />
                     </div>
                   </div>
                   <div className="grid grid-cols-2 gap-3">
                     <div>
-                      <Label className="text-xs text-[var(--dg-text-secondary)]">{t('monitor.zabbixdatasourcemanager.sbf9a86')}</Label>
+                      <Label className="text-xs text-[var(--dg-text-secondary)]">Cache TTL (秒)</Label>
                       <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" type="number" min={0}
                         value={form.trends_cache_ttl} onChange={e => updateForm('trends_cache_ttl', parseInt(e.target.value) || 3600)} />
                     </div>
                     <div>
-                      <Label className="text-xs text-[var(--dg-text-secondary)]">{t('monitor.zabbixdatasourcemanager.s21f982')}</Label>
+                      <Label className="text-xs text-[var(--dg-text-secondary)]">Timeout (秒)</Label>
                       <Input className="mt-1 h-9 text-sm bg-[var(--dg-bg-primary)]" type="number" min={1}
                         value={form.trends_timeout} onChange={e => updateForm('trends_timeout', parseInt(e.target.value) || 30)} />
                     </div>
@@ -367,7 +365,7 @@ export default function ZabbixDatasourceManager() {
                 onClick={() => setShowOther(!showOther)}>
                 <div className="flex items-center gap-2">
                   <Settings className="w-4 h-4" />
-                  <span>{t('monitor.zabbixdatasourcemanager.sdda36e')}</span>
+                  <span>其他设置</span>
                 </div>
                 {showOther ? <ChevronUp className="w-4 h-4" /> : <ChevronDown className="w-4 h-4" />}
               </button>
@@ -378,11 +376,11 @@ export default function ZabbixDatasourceManager() {
                     <Switch checked={form.direct_db} onCheckedChange={v => updateForm('direct_db', v)} />
                   </div>
                   <div className="flex items-center justify-between">
-                    <Label className="text-xs">{t('monitor.zabbixdatasourcemanager.s413ec7')}</Label>
+                    <Label className="text-xs">只读用户禁用确认</Label>
                     <Switch checked={form.disable_acknowledges} onCheckedChange={v => updateForm('disable_acknowledges', v)} />
                   </div>
                   <div className="flex items-center justify-between">
-                    <Label className="text-xs">{t('monitor.zabbixdatasourcemanager.s6d4d6f')}</Label>
+                    <Label className="text-xs">禁用数据对齐</Label>
                     <Switch checked={form.disable_data_alignment} onCheckedChange={v => updateForm('disable_data_alignment', v)} />
                   </div>
                 </div>
@@ -406,8 +404,8 @@ export default function ZabbixDatasourceManager() {
               测试连接
             </Button>
             <div className="flex-1" />
-            <Button variant="ghost" size="sm" onClick={() => setDialogOpen(false)}>{t('common.cancel')}</Button>
-            <Button size="sm" onClick={handleSave}>{t('common.save')}</Button>
+            <Button variant="ghost" size="sm" onClick={() => setDialogOpen(false)}>取消</Button>
+            <Button size="sm" onClick={handleSave}>保存</Button>
           </DialogFooter>
         </DialogContent>
       </Dialog>