update failed messages

frontend/src/components/layouts/MainLayout.vue

@@ -11,6 +11,7 @@ import {
   UnorderedListOutlined,
   DollarOutlined,
   MonitorOutlined,
+  WarningOutlined,
   LogoutOutlined,
   SettingOutlined,
   KeyOutlined,
@@ -80,6 +81,7 @@ const menuItems: MenuItem[] = [
   { key: '/roles', icon: TeamOutlined, label: '角色管理', adminOnly: true },
   { key: '/route-groups', icon: ApartmentOutlined, label: '路由组管理', adminOnly: true },
   { key: '/mq-status', icon: MonitorOutlined, label: '队列监控', adminOnly: true },
+  { key: '/failed-messages', icon: WarningOutlined, label: '失败消息', adminOnly: true },
 ]
 
 const filteredMenuItems = computed(() =>
@@ -113,6 +115,7 @@ const breadcrumbItems = computed(() => {
     '/roles': '角色管理',
     '/route-groups': '路由组管理',
     '/mq-status': '队列监控',
+    '/failed-messages': '失败消息',
     '/profile': '个人信息',
     '/profile/password': '修改密码',
   }