refactor(i18n): U42 残余硬编码中文彻底清零 — 33文件54处→0, zh/en 7847→7898对齐

全量 JSX children + toast/confirm + sr-only 描述硬编码中文清零:
- Kubernetes模块: UpdateStrategyCard maxSurge/maxUnavailable说明 + IngressCreateForm host域名/Service端口 + ServiceCreateForm 端口配置/selector + DeploymentEditService 无selector/个关联/暂无Service/Ingress + ClusterOverviewPage 核 + KubernetesClusterDialog 已配置 + KubectlTerminal/ResourceVisualEditor/CreateHPADialog/DeploymentEditContainers/Storage + PodInstancesTable/UpdateStrategySelectorCards
- AI模块: PredictiveCapacityTab AI深度解读/紧急/警告/7天预测/预计N天 + PredictiveCostTab AI深度解读 + event-handler.ts 高危操作确认toast
- Deploy模块: DeployCredentials 启用/禁用 + DeployRBAC 删除角色confirm + WorkspaceTermDialog + CredFormDialog Windows用户
- Monitor模块: AlertRulesTab 删除confirm/分钟 + PrometheusDatasourceManager/LogDatasourcePage 删除confirm + QueryHistoryPanel 条
- System模块: ServerFileBrowser/TerminalDialog/RdpAuditViewer sr-only + SystemManager/CredentialManager/TerminalSessionsTab 删除confirm + SecuritySettingsTab 30分钟/2小时
- Task模块: CronJobViewDialog 次

新增 61 翻译键 (k8s.editAdvanced 6 + k8s.editService 11 + k8s.cluster 2 + k8s.misc 9 + aiops.capacity 9 + aiops.cost 1 + aiops.cli 2 + deploy 4 + monitor 5 + system 10 + task 1 + common 2)
tsc -b=0, npm build✓ (17.71s), ESLint=0/43/any=0, go build=0, 17/17 测试通过

frontend/src/components/deploy/credential-manager/CredFormDialog.tsx

@@ -292,7 +292,7 @@ export function CredFormDialog({ open, onClose, onSaved, editData }: CredFormDia
             {secretType === 'rdp' && (
               <div className="grid grid-cols-2 gap-3">
                 <div className="space-y-1">
-                  <Label className="text-[var(--dg-text-secondary)] text-xs">Windows 用户 <span className="dg-text-red">*</span></Label>
+                  <Label className="text-[var(--dg-text-secondary)] text-xs">{t("deploy.cred.windowsUser")} <span className="dg-text-red">*</span></Label>
                   <Input value={rdpUsername} onChange={e => setRdpUsername(e.target.value)} placeholder="Administrator"
                     className="bg-[var(--dg-bg-tertiary)] border-[var(--dg-border)] text-[var(--dg-text-primary)]" />
                 </div>