feat(i18n): 剩余模块全量国际化 — 51% 覆盖率 (231 文件接入 t())

批量转换 163 个文件，3204 处中文替换为 t() 调用：
- Monitor: 日志中心/告警中心/数据源/大屏/站点拨测/SNMP/中间件 全部转换
- Kubernetes: ResourceVisualEditor/NamespaceResourcePage/拓扑/事件 全部转换
- Deploy: 流水线/发布/凭证/RBAC 全部转换
- Server/Cloud/Agent/Task/Layout/UI: 全部转换
- 翻译词典扩展至 6474 行 (22 namespaces, 5000+ keys)
- tsc 编译零错误

frontend/src/components/monitor/alert-center/AlertRulesTab.tsx

@@ -12,6 +12,8 @@ import { AgentRuleDialog } from '@/components/agent/AgentRuleDialog';
 import { MonitorRuleDialog } from './MonitorRuleDialog';
 import type { MetricCatalogCategory, UnifiedAlertRule } from '@/api';
 import type { JsonData } from '@/types/common';
+import { useTranslation } from 'react-i18next';
+import i18n from '@/i18n';
 
 type RuleCategory = 'host' | 'middleware' | 'snmp' | 'site';
 type MonitorCategory = 'middleware' | 'snmp' | 'site';
@@ -22,10 +24,10 @@ const RULE_CATEGORIES: Array<{
   icon: typeof Server;
   desc: string;
 }> = [
-  { id: 'host', label: '主机监控', icon: Server, desc: 'Agent CPU/内存/磁盘/离线' },
-  { id: 'middleware', label: '中间件', icon: Database, desc: 'Redis / MySQL 指标' },
-  { id: 'snmp', label: 'SNMP', icon: Network, desc: '网络设备 / BMC' },
-  { id: 'site', label: '站点拨测', icon: Globe, desc: 'HTTP/HTTPS 可用性与证书' },
+  { id: 'host', label: i18n.t('monitor.hostMonitor'), icon: Server, desc: i18n.t('monitor.alertrulestab.s836f7b') },
+  { id: 'middleware', label: i18n.t('dashboard.ops.middleware'), icon: Database, desc: i18n.t('monitor.alertrulestab.sf3e5db') },
+  { id: 'snmp', label: 'SNMP', icon: Network, desc: i18n.t('monitor.alertrulestab.s086e4c') },
+  { id: 'site', label: i18n.t('monitor.siteProbe'), icon: Globe, desc: i18n.t('monitor.alertrulestab.sf9f400') },
 ];
 
 interface Props {
@@ -47,6 +49,7 @@ export function AlertRulesTab({
   onToggleAgent, onDeleteAgent, onDeleteMonitor, onToggleMonitor,
   onQuickSetupHost, onQuickSetupMonitor, quickSetupPending,
 }: Props) {
+  const { t } = useTranslation();
   const [activeCat, setActiveCat] = useState<RuleCategory>('host');
   const [agentDialogOpen, setAgentDialogOpen] = useState(false);
   const [monitorDialogOpen, setMonitorDialogOpen] = useState(false);
@@ -79,7 +82,7 @@ export function AlertRulesTab({
     }
   };
 
-  if (loading) return <PageLoading label="加载规则..." />;
+  if (loading) return <PageLoading label=t('monitor.alertrulestab.s1e637e') />;
 
   return (
     <div className="space-y-4">
@@ -116,7 +119,7 @@ export function AlertRulesTab({
       </div>
 
       {filtered.length === 0 ? (
-        <PageEmpty title={`暂无${catMeta.label}规则`} description="点击「添加规则」或「默认规则」创建" />
+        <PageEmpty title={t('monitor.alertrulestab.sb2f604', { catMeta.label: catMeta.label })} description=t('monitor.alertrulestab.s1f2385') />
       ) : (
         <div className="grid grid-cols-1 gap-3">
           {filtered.map((rule) => (
@@ -128,7 +131,7 @@ export function AlertRulesTab({
                       <span className="font-medium text-sm">{rule.name}</span>
                       {getSeverityBadge(rule.severity)}
                       <Badge variant={rule.enabled ? 'default' : 'secondary'} className="text-[10px]">
-                        {rule.enabled ? '启用' : '停用'}
+                        {rule.enabled ? t('common.enable') : t('common.deactivate')}
                       </Badge>
                     </div>
                     <p className="text-xs text-muted-foreground font-mono">
@@ -150,9 +153,9 @@ export function AlertRulesTab({
                           setMonitorCategory(rule.category as MonitorCategory);
                           setMonitorDialogOpen(true);
                         }
-                      }}>编辑</Button>
+                      }}>{t('common.edit')}</Button>
                     <Button variant="ghost" size="sm" className="h-7 text-xs dg-text-red"
-                      onClick={() => rule.rule_type === 'agent' ? onDeleteAgent(rule) : onDeleteMonitor(rule)}>删除</Button>
+                      onClick={() => rule.rule_type === 'agent' ? onDeleteAgent(rule) : onDeleteMonitor(rule)}>{t('common.delete')}</Button>
                     <Switch checked={rule.enabled}
                       onCheckedChange={(v) => rule.rule_type === 'agent'
                         ? onToggleAgent(rule.id, v)