feat(frontend): 控制台 next-intl 中英双语

接入无 URL 前缀的 zh-CN/en，顶栏与外观设置可切换语言；选择写入 cookie 后刷新生效。

frontend/lib/utils/search-data.ts

@@ -29,14 +29,19 @@ const match = ((): MatchFunction | null => {
   return null;
 })();
 
-export interface SearchItem {
+export interface SearchItemSource {
   id: string;
-  title: string;
-  description: string;
+  titleKey: string;
+  descriptionKey: string;
   url: string;
   category: 'page' | 'feature' | 'setting' | 'admin';
   keywords: string[];
   icon?: string;
+}
+
+export interface SearchItem extends SearchItemSource {
+  title: string;
+  description: string;
   matchRange?: [number, number];
 }
 
@@ -44,12 +49,12 @@ export interface SearchItem {
  * 全局搜索数据源
  * 包含所有可搜索的页面和功能
  */
-export const searchData: SearchItem[] = [
+export const searchData: SearchItemSource[] = [
   // ==================== 总览 ====================
   {
     id: 'home',
-    title: '总览',
-    description: '返回控制台总览',
+    titleKey: 'nav.dashboard',
+    descriptionKey: 'search.items.homeDesc',
     url: '/',
     category: 'page',
     keywords: ['home', '主页', '首页', 'dashboard', '总览'],
@@ -58,8 +63,8 @@ export const searchData: SearchItem[] = [
   // ==================== 文档库 ====================
   {
     id: 'docs-how-to-use',
-    title: '使用帮助文档',
-    description: '查看新手教程和集成示例',
+    titleKey: 'nav.usageDocs',
+    descriptionKey: 'search.items.usageDocsDesc',
     url: 'https://open-flare.pages.dev/',
     category: 'page',
     keywords: ['docs', '文档', '使用', 'how to', 'tutorial', '教程', 'help'],
@@ -68,8 +73,8 @@ export const searchData: SearchItem[] = [
   // ==================== 业务控制台 ====================
   {
     id: 'console-nodes',
-    title: '节点管理',
-    description: '管理边缘节点、中继节点与内网穿透通道',
+    titleKey: 'nav.nodes',
+    descriptionKey: 'search.items.nodesDesc',
     url: '/nodes',
     category: 'page',
     keywords: [
@@ -84,32 +89,32 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'console-proxy-routes',
-    title: '规则管理',
-    description: '配置反向代理、路由匹配规则、WAF 策略与缓存设置',
+    titleKey: 'nav.proxyRoutes',
+    descriptionKey: 'search.items.proxyRoutesDesc',
     url: '/proxy-routes',
     category: 'page',
     keywords: ['route', '规则', '路由', '代理', '反向代理', 'proxy'],
   },
   {
     id: 'console-websites',
-    title: '域名列表',
-    description: '管理托管域名及证书绑定与监听配置',
+    titleKey: 'nav.websites',
+    descriptionKey: 'search.items.websitesDesc',
     url: '/websites',
     category: 'page',
     keywords: ['website', 'domain', '网站', '域名', '站点'],
   },
   {
     id: 'console-certificates',
-    title: 'TLS 证书',
-    description: '申请与管理 SSL/TLS 证书，支持自动续期',
+    titleKey: 'nav.certificates',
+    descriptionKey: 'search.items.certificatesDesc',
     url: '/certificates',
     category: 'page',
     keywords: ['certificate', 'ssl', 'tls', '证书', 'https', '加密'],
   },
   {
     id: 'console-dns-accounts',
-    title: 'DNS 账号',
-    description: '配置 DNS 服务商 API 凭证以自动申请证书及管理解析',
+    titleKey: 'nav.dnsAccounts',
+    descriptionKey: 'search.items.dnsAccountsDesc',
     url: '/dns-accounts',
     category: 'page',
     keywords: [
@@ -124,16 +129,16 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'console-origins',
-    title: '源站地址',
-    description: '管理反向代理的目标后端服务器与负载均衡组',
+    titleKey: 'nav.origins',
+    descriptionKey: 'search.items.originsDesc',
     url: '/origins',
     category: 'page',
     keywords: ['origin', '源站', '后端', 'backend', '服务器', '负载均衡'],
   },
   {
     id: 'console-responses',
-    title: '响应页面',
-    description: '配置源站错误页与离线兜底联系页',
+    titleKey: 'nav.responses',
+    descriptionKey: 'search.items.responsesDesc',
     url: '/responses',
     category: 'page',
     keywords: [
@@ -151,24 +156,24 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'console-waf',
-    title: 'WAF 防火墙',
-    description: '配置 Web 应用防火墙规则，阻断恶意请求',
+    titleKey: 'nav.waf',
+    descriptionKey: 'search.items.wafDesc',
     url: '/waf',
     category: 'page',
     keywords: ['waf', '防火墙', '安全', 'security', '拦截', '规则'],
   },
   {
     id: 'console-ip-groups',
-    title: 'IP 组',
-    description: '定义 IP 地址列表以在 WAF 或路由中实现黑白名单控制',
+    titleKey: 'nav.ipGroups',
+    descriptionKey: 'search.items.ipGroupsDesc',
     url: '/ip-groups',
     category: 'page',
     keywords: ['ip', 'ip group', 'ip组', '黑名单', '白名单', '访问控制'],
   },
   {
     id: 'console-rate-limits',
-    title: '限流',
-    description: '配置边缘站点默认并发与带宽限流策略',
+    titleKey: 'nav.rateLimits',
+    descriptionKey: 'search.items.rateLimitsDesc',
     url: '/rate-limits',
     category: 'page',
     keywords: [
@@ -182,32 +187,32 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'console-pages',
-    title: 'Pages 静态托管',
-    description: '上传或部署静态网页，提供全球 CDN 加速托管',
+    titleKey: 'nav.pages',
+    descriptionKey: 'search.items.pagesDesc',
     url: '/pages',
     category: 'page',
     keywords: ['pages', '静态托管', 'cdn', '网站', '部署', 'static'],
   },
   {
     id: 'console-config-versions',
-    title: '版本发布',
-    description: '查看、对比、发布与回滚系统配置版本',
+    titleKey: 'nav.configVersions',
+    descriptionKey: 'search.items.configVersionsDesc',
     url: '/config-versions',
     category: 'page',
     keywords: ['version', 'config', '版本', '发布', '回滚', '对比', '部署'],
   },
   {
     id: 'console-access-logs',
-    title: '访问日志',
-    description: '查看并检索全量网站访问请求日志与网络分析数据',
+    titleKey: 'nav.accessLogs',
+    descriptionKey: 'search.items.accessLogsDesc',
     url: '/access-logs',
     category: 'page',
     keywords: ['log', 'logs', '访问日志', '分析', '流量', '请求'],
   },
   {
     id: 'console-apply-logs',
-    title: '应用记录',
-    description: '查看节点配置下发、同步与生效的历史记录',
+    titleKey: 'nav.applyLogs',
+    descriptionKey: 'search.items.applyLogsDesc',
     url: '/apply-logs',
     category: 'page',
     keywords: [
@@ -222,8 +227,8 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'console-performance',
-    title: '性能调优',
-    description: '调优网络连接、代理超时与核心系统性能参数',
+    titleKey: 'nav.performance',
+    descriptionKey: 'search.items.performanceDesc',
     url: '/performance',
     category: 'page',
     keywords: ['performance', '性能', '调优', '优化', '参数', '连接', '超时'],
@@ -232,32 +237,32 @@ export const searchData: SearchItem[] = [
   // ==================== 个人设置 ====================
   {
     id: 'settings',
-    title: '全局设置',
-    description: '配置应用个人偏好选项',
+    titleKey: 'search.items.globalSettings',
+    descriptionKey: 'search.items.settingsDesc',
     url: '/settings',
     category: 'setting',
     keywords: ['settings', '设置', '偏好', 'preferences'],
   },
   {
     id: 'settings-profile',
-    title: '我的资料',
-    description: '编辑昵称、头像和个人属性',
+    titleKey: 'user.profile',
+    descriptionKey: 'search.items.profileDesc',
     url: '/settings/profile',
     category: 'setting',
     keywords: ['profile', '资料', '个人', '我的', '信息', 'avatar'],
   },
   {
     id: 'settings-appearance',
-    title: '外观设置',
-    description: '配置系统显示主题（亮色/暗色）',
+    titleKey: 'search.items.appearance',
+    descriptionKey: 'search.items.appearanceDesc',
     url: '/settings/appearance',
     category: 'setting',
     keywords: ['appearance', '外观', '主题', 'theme', 'dark', 'light'],
   },
   {
     id: 'admin-settings',
-    title: '系统设置',
-    description: '管理系统登录注册与认证源配置 (管理员专属)',
+    titleKey: 'nav.adminSettings',
+    descriptionKey: 'search.items.adminSettingsDesc',
     url: '/admin/settings',
     category: 'admin',
     keywords: [
@@ -272,24 +277,24 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'admin-system',
-    title: '系统配置',
-    description: '动态修改平台核心运行时配置 (管理员专属)',
+    titleKey: 'nav.system',
+    descriptionKey: 'search.items.systemDesc',
     url: '/admin/system',
     category: 'admin',
     keywords: ['admin', '管理员', '系统', '配置', 'system', 'configurations'],
   },
   {
     id: 'admin-users',
-    title: '用户管理',
-    description: '管理平台注册用户的活跃状态 (管理员专属)',
+    titleKey: 'nav.users',
+    descriptionKey: 'search.items.usersDesc',
     url: '/admin/users',
     category: 'admin',
     keywords: ['admin', '管理员', '用户', '管理', 'users', 'status'],
   },
   {
     id: 'admin-tasks',
-    title: '异步任务管理',
-    description: '下发与排查后台异步定时任务 (管理员专属)',
+    titleKey: 'nav.tasks',
+    descriptionKey: 'search.items.tasksDesc',
     url: '/admin/tasks',
     category: 'admin',
     keywords: [
@@ -304,25 +309,24 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'admin-files',
-    title: '存储管理',
-    description: '查看、检索与清理上传到对象存储中的文件 (管理员专属)',
+    titleKey: 'nav.storage',
+    descriptionKey: 'search.items.storageDesc',
     url: '/admin/files',
     category: 'admin',
     keywords: ['admin', '管理员', '存储', '文件', 'files', 'upload', 's3'],
   },
   {
     id: 'admin-database',
-    title: '数据管理',
-    description:
-      '监控数据库表大小、分页浏览物理表内容并支持交互式 SQL (管理员专属)',
+    titleKey: 'nav.database',
+    descriptionKey: 'search.items.databaseDesc',
     url: '/admin/database',
     category: 'admin',
     keywords: ['admin', '管理员', '数据库', 'database', 'sql', 'query', 'gorm'],
   },
   {
     id: 'admin-push',
-    title: '通知推送',
-    description: '配置与下发邮件、Lark 和 Telegram 渠道通知推送 (管理员专属)',
+    titleKey: 'nav.push',
+    descriptionKey: 'search.items.pushDesc',
     url: '/admin/push',
     category: 'admin',
     keywords: [
@@ -338,8 +342,8 @@ export const searchData: SearchItem[] = [
   },
   {
     id: 'admin-logs',
-    title: '系统日志',
-    description: '查看系统日志与后台异步任务执行日志 (管理员专属)',
+    titleKey: 'nav.logs',
+    descriptionKey: 'search.items.logsDesc',
     url: '/admin/logs',
     category: 'admin',
     keywords: ['admin', '管理员', '日志', 'logs', 'system log', 'terminal'],
@@ -350,11 +354,13 @@ export const searchData: SearchItem[] = [
  * 搜索功能
  * @param query 搜索关键词
  * @param isAdmin 是否为管理员
+ * @param t 文案解析函数（layout 命名空间）
  * @returns 匹配的搜索结果
  */
 export function searchItems(
   query: string,
   isAdmin: boolean = false,
+  t: (key: string) => string,
 ): SearchItem[] {
   const trimmedQuery = query.trim();
 
@@ -363,11 +369,17 @@ export function searchItems(
     ? searchData
     : searchData.filter((item) => item.category !== 'admin');
 
+  const resolved = filteredData.map((item) => ({
+    ...item,
+    title: t(item.titleKey),
+    description: t(item.descriptionKey),
+  }));
+
   if (!trimmedQuery) {
-    return filteredData;
+    return resolved;
   }
 
-  return filteredData
+  return resolved
     .map((item) => {
       // 优先匹配标题
       const titleMatch =