禁止修改全局布局，以及菜单栏变动

frontend/src/layout/components/Navbar.vue

@@ -1,9 +1,8 @@
 <template>
-  <div class="navbar" :class="['nav' + navType, { 'header-mode': headerMode }]">
+  <div class="navbar" :class="[{ 'header-mode': headerMode }]">
     <hamburger v-if="!headerMode" id="hamburger-container" :is-active="sidebar.opened" class="hamburger-container" @toggleClick="toggleSideBar" />
 
-    <breadcrumb v-if="!headerMode && navType == 1" id="breadcrumb-container" class="breadcrumb-container" />
-    <top-nav v-if="!headerMode && navType == 2" id="topmenu-container" class="topmenu-container" />
+    <breadcrumb v-if="!headerMode" id="breadcrumb-container" class="breadcrumb-container" />
     <div class="right-menu">
       <template v-if="device!=='mobile'">
         <el-tooltip content="菜单搜索" effect="dark" placement="bottom">
@@ -34,9 +33,6 @@
           <router-link to="/user/profile">
             <el-dropdown-item icon="el-icon-user">个人中心</el-dropdown-item>
           </router-link>
-          <el-dropdown-item v-if="setting" icon="el-icon-s-tools" @click.native="setLayout">
-            <span>布局设置</span>
-          </el-dropdown-item>
           <el-dropdown-item icon="el-icon-lock" @click.native="lockScreen">
             <span>锁定屏幕</span>
           </el-dropdown-item>
@@ -52,7 +48,6 @@
 <script>
 import { mapGetters } from 'vuex'
 import Breadcrumb from '@/components/Breadcrumb'
-import TopNav from './TopNav'
 import Hamburger from '@/components/Hamburger'
 import Screenfull from '@/components/Screenfull'
 import Search from '@/components/HeaderSearch'
@@ -61,7 +56,6 @@ import HeaderNotice from './HeaderNotice'
 export default {
   components: {
     Breadcrumb,
-    TopNav,
     Hamburger,
     Screenfull,
     Search,
@@ -85,16 +79,6 @@ export default {
       'nickName',
       'roles'
     ]),
-    setting: {
-      get() {
-        return this.$store.state.settings.showSettings
-      }
-    },
-    navType: {
-      get() {
-        return this.$store.state.settings.navType
-      }
-    },
     // 用户角色标签：根据 roles 数组智能映射为友好文本
     userRoleLabel() {
       const roleMap = {
@@ -112,9 +96,6 @@ export default {
     toggleSideBar() {
       this.$store.dispatch('app/toggleSideBar')
     },
-    setLayout(event) {
-      this.$emit('setLayout')
-    },
     handleCommand(command) {
       // 预留：下拉菜单 command 事件入口
     },