refactor(i18n): U27 多模块 phantom key 批量清理 — Cloud/Deploy/Agent/Monitor/System 5 模块 25 文件, 180 个 phantom key → 51 残留, 129 个替换为语义化键, 新增 12 子命名空间, zh/en 7185→7294 +109 键对齐, tsc -b=0, npm build✓ (16.31s), ESLint=0/0/0, go build=0, 17/17 测试通过

frontend/src/components/agent/AgentAlerts.tsx

@@ -53,7 +53,7 @@ export function AgentAlerts() {
       setRules(asList(rulesRes));
     } catch (err) {
       console.error(err);
-      toast.error(i18n.t('加载告警数据失败'));
+      toast.error(i18n.t('agent.alerts.loadFailed'));
     } finally {
       setLoading(false);
     }
@@ -65,11 +65,11 @@ export function AgentAlerts() {
 
   // ============ 告警事件 ============
   const handleResolve = async (id: number) => {
-    const ok = await confirm({ title: i18n.t('恢复告警'), description: i18n.t('确定将此告警标记为已恢复？'), confirmText: i18n.t('kubernetes.deployment.resume') });
+    const ok = await confirm({ title: i18n.t('agent.alerts.resolveAlert'), description: i18n.t('agent.alerts.resolveConfirm'), confirmText: i18n.t('kubernetes.deployment.resume') });
     if (!ok) return;
     try {
       await agentApi.resolveAlert(id);
-      toast.success(i18n.t('告警已恢复'));
+      toast.success(i18n.t('agent.alerts.resolved'));
       loadData();
     } catch (err) {
       toast.error(err?.message || i18n.t('cloud.operationFailed'));
@@ -88,11 +88,11 @@ export function AgentAlerts() {
   };
 
   const handleDeleteRule = async (id: number) => {
-    const ok = await confirm({ title: i18n.t('monitor.deleteRule'), description: i18n.t('删除规则'), confirmText: i18n.t('kubernetes.storage.delete2'), variant: 'destructive' });
+    const ok = await confirm({ title: i18n.t('monitor.deleteRule'), description: i18n.t('agent.alerts.deleteRule'), confirmText: i18n.t('kubernetes.storage.delete2'), variant: 'destructive' });
     if (!ok) return;
     try {
       await agentApi.deleteRule(id);
-      toast.success(i18n.t('告警已恢复'));
+      toast.success(i18n.t('agent.alerts.resolved'));
       loadData();
     } catch (err) {
       toast.error(err?.message || i18n.t('kubernetes.msg.deleteFailed2'));
@@ -114,7 +114,7 @@ export function AgentAlerts() {
       <div className="flex items-center justify-between">
         <div>
           <h2 className="text-xl font-semibold text-[var(--dg-text-primary)]">Agent 告警</h2>
-          <p className="text-sm dg-text-secondary mt-0.5"> {i18n.t('触发告警阈值')} </p>
+          <p className="text-sm dg-text-secondary mt-0.5"> {i18n.t('agent.alerts.thresholdTriggered')} </p>
         </div>
         <Button variant="outline" size="sm" onClick={loadData} disabled={loading} className="dg-input text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)]">
           <RefreshCw className={`h-4 w-4 mr-1.5 ${loading ? 'animate-spin' : ''}`} />
@@ -160,7 +160,7 @@ export function AgentAlerts() {
             <Card className="dg-card">
               <CardContent className="flex flex-col items-center justify-center py-16">
                 <CheckCircle className="h-10 w-10 text-emerald-500 mb-3" />
-                <p className="dg-text-secondary">{resolvedView ? i18n.t('暂无已恢复的告警') : i18n.t('当前无活动告警，一切正常')}</p>
+                <p className="dg-text-secondary">{resolvedView ? i18n.t('agent.alerts.noResolved') : i18n.t('agent.alerts.noActive')}</p>
               </CardContent>
             </Card>
           ) : (
@@ -178,7 +178,7 @@ export function AgentAlerts() {
                             {severityBadge(alert.severity)}
                             <span className="font-medium text-[var(--dg-text-primary)]">{alert.rule_name || alert.name || alert.title || i18n.t('monitor.hostDashboard.alert')}</span>
                           </div>
-                          <p className="text-sm dg-text-secondary mt-1">{alert.message || alert.description || i18n.t('触发告警阈值')}</p>
+                          <p className="text-sm dg-text-secondary mt-1">{alert.message || alert.description || i18n.t('agent.alerts.thresholdTriggered')}</p>
                           <div className="flex items-center gap-4 mt-2 text-xs dg-text-muted flex-wrap">
                             <span className="inline-flex items-center gap-1">
                               <Cpu className="h-3 w-3" />