feat(i18n): 增量国际化迁移 — deploy/kubernetes/monitor/task 全模块 + 补全 28 缺失翻译键

迁移范围:
- deploy 模块 (PipelineEditor/PipelineDetailDialog/PipelineFormDialog/PipelineRunDialog/ReleaseCreateDialog/ReleaseDetailDialog/ReleaseManager/ToolConfigTab/JobRoleCreateDialog 等 14 文件)
- kubernetes 模块 (YamlEditorToolbar/DeploymentHpaTab/DeploymentLogsTab/DeploymentPodsTab/DnsHostSection/SchedulingSection/EventsTab/HPACronHPATab/HistoryTab/PodsTab/ServicesTab/ActionModals 等 12 文件)
- monitor 模块 (AlertEventsTab/AlertCenterDetail/DatasourcePage/LogAlertBell/LogCenter/LogCenterArchBanner/StatChartPanel/LogRoleCreateDialog 等 8 文件)
- task 模块 (CronJobStatsPanel/CronJobTable/CronJobViewDialog/ExecutionHistoryDialog 4 文件)
- layout (PageEmpty/PageLoading 2 文件)
- site-monitor/snmp-monitor 模块 (6 文件)

翻译键: 3975 → 4003 (+28 缺失键补全), 22 命名空间, zh-CN/en-US 完全对齐
新增命名空间: agent/aiops/cloud/kubernetes/monitor/pipeline/rbac/system/task/ui

验证: go build✅ tsc -b=0 npm build✅ (20.78s) 17/17 集成测试通过

frontend/src/pages/monitor/middleware-monitor/InstanceCard.tsx

@@ -1,5 +1,6 @@
 // 中间件实例卡片 — 紧凑列表项，详情见右侧可观测面板 // Logan.Li
 import { Button } from '@/components/ui/button';
+import { useTranslation } from 'react-i18next';
 import { AlertTriangle, Loader2, Pencil, Trash2, Zap } from 'lucide-react';
 import type { MwTarget } from './helpers';
 import {
@@ -18,6 +19,7 @@ interface Props {
 }
 
 export function InstanceCard({ target, selected, onSelect, onEdit, onDelete, onTest, testing }: Props) {
+  const { t } = useTranslation();
   const m = target.latest_metrics || {};
   const isRedis = target.description === 'redis';
   const issues = evalMwHealth(target);
@@ -55,20 +57,20 @@ export function InstanceCard({ target, selected, onSelect, onEdit, onDelete, onT
         ) : (
           <>
             <MetricPill label="QPS" value={fmtVal(m.mysql_qps, 1)} />
-            <MetricPill label="线程" value={fmtVal(m.mysql_threads_running)} />
+            <MetricPill label={t('monitor.mwInstance.threads')} value={fmtVal(m.mysql_threads_running)} />
           </>
         )}
       </div>
 
       <div className="flex items-center gap-0.5" onClick={(e) => e.stopPropagation()}>
         <Button variant="ghost" size="sm" className="h-6 px-1.5 text-[10px]" onClick={onTest} disabled={testing}>
-          {testing ? <Loader2 className="h-3 w-3 animate-spin" /> : <Zap className="h-3 w-3" />}测试
+          {testing ? <Loader2 className="h-3 w-3 animate-spin" /> : <Zap className="h-3 w-3" />}{t('monitor.mwInstance.test')}
         </Button>
         <Button variant="ghost" size="sm" className="h-6 px-1.5 text-[10px]" onClick={onEdit}>
-          <Pencil className="h-3 w-3" />编辑
+          <Pencil className="h-3 w-3" />{t('common.edit')}
         </Button>
         <Button variant="ghost" size="sm" className="h-6 px-1.5 text-[10px] dg-text-red" onClick={onDelete}>
-          <Trash2 className="h-3 w-3" />删除
+          <Trash2 className="h-3 w-3" />{t('common.delete')}
         </Button>
       </div>
     </button>