refactor(i18n): U39 残余 JSX 属性/模板字面量中文清零 — 14 处→0

10 文件修复:
- DualLineChart: subtitle 接收/发送→i18n.t(monitor.lbl.receiveSend)
- NetworkTab: 5处 unit="个"→t(common.unitCount)
- FDUsageCard: subtitle 当前→t(monitor.lbl.currentFDUsage)
- NamespaceOverviewPage: subtitle 命名空间概览→i18n.t(k8s.nsOverview.subtitle)
- NamespaceManagementPage: subtitle 资源配额→i18n.t(k8s.nsMgmt.quotaSubtitle)
- CreateHPADialog: title+text 命名空间→i18n.t(k8s.hpa.targetInfo)
- LogFieldSidebar: title 个值→i18n.t(common.fieldValues)
- LiveMonitorDialog: title 全屏/退出全屏→t(common.fullscreen/exitFullscreen)
- ExecutionHistoryDialog: title 成功/失败→t(task.execHistory.successFail)
- LdapSettingsTab: className 成功检查→ldapTestSuccess boolean 状态

新增 11 翻译键 (common.unitCount/fieldValues/exitFullscreen/fullscreen +
monitor.lbl.receiveSend/currentFDUsage + k8s.nsOverview.subtitle/nsMgmt.quotaSubtitle/hpa.targetInfo +
task.execHistory.successFail), zh/en 7751→7762 对齐

tsc -b=0, npm build✓ (16.94s), ESLint=0/0/any=0, go build=0, 17/17 测试通过

frontend/src/components/kubernetes/NamespaceManagementPage.tsx

@@ -121,7 +121,7 @@ export default function NamespaceManagementPage() {
     <PageShell
       variant="list"
       title={i18n.t('k8s.nsMgmt.title')}
-      subtitle={`${clusterCode} · 资源配额与生命周期管理`}
+      subtitle={i18n.t('k8s.nsMgmt.quotaSubtitle', { code: clusterCode })}
       icon={<Boxes className="h-5 w-5" />}
       metrics={!loading ? (
         <StatStrip

frontend/src/components/kubernetes/NamespaceOverviewPage.tsx

@@ -68,7 +68,7 @@ export default function NamespaceOverviewPage() {
     <PageShell
       variant="default"
       title={namespace || i18n.t('kubernetes.namespace.title')}
-      subtitle={`${clusterCode} · 命名空间概览`}
+      subtitle={i18n.t('k8s.nsOverview.subtitle', { code: clusterCode })}
       icon={<Cloud className="h-5 w-5" />}
       loading={loading}
       loadingLabel={i18n.t('k8s.nsOverview.loadingStats')}

frontend/src/components/kubernetes/deployment-detail/CreateHPADialog.tsx

@@ -72,8 +72,8 @@ export function CreateHPADialog({ clusterCode, namespace, deploymentName, onCrea
               </div>
               <div>
                 <Label className="dg-text-secondary text-sm">{i18n.t("common.target")}</Label>
-                <p className="text-[var(--dg-text-secondary)] text-sm mt-1 bg-[var(--dg-bg-tertiary)] rounded px-3 py-2 truncate" title={`Deployment: ${deploymentName} · 命名空间: ${namespace}`}>
-                  Deployment: {deploymentName} · 命名空间: {namespace}
+                <p className="text-[var(--dg-text-secondary)] text-sm mt-1 bg-[var(--dg-bg-tertiary)] rounded px-3 py-2 truncate" title={i18n.t('k8s.hpa.targetInfo', { deploy: deploymentName, ns: namespace })}>
+                  {i18n.t('k8s.hpa.targetInfo', { deploy: deploymentName, ns: namespace })}
                 </p>
               </div>
               <div className="grid grid-cols-2 gap-3">