style: 左侧导航栏菜单恢复为调整前样式

src/views/teacher/course/CourseEditor.vue

@@ -40,7 +40,7 @@
       </div>
 
       <!-- 练考通二级导航 -->
-      <!-- <div class="menu-group">
+      <div class="menu-group">
         <div class="menu-header" @click="togglePractice">
           <img src="/images/teacher/练考通.png" alt="练考通" />
           <span>考试管理</span>
@@ -66,7 +66,7 @@
             <span>阅卷中心</span>
           </router-link>
         </div>
-      </div> -->
+      </div>
       <router-link :to="`/teacher/course-editor/${courseId}/certificate`" class="menu-item"
         :class="{ active: $route.path.includes('certificate') }">
         <img :src="$route.path.includes('certificate') ? '/images/teacher/证书-选中.png' : '/images/teacher/证书.png'"
@@ -131,9 +131,9 @@ const toggleHomework = () => {
 const practiceExpanded = ref(false)
 
 // 切换练考通菜单展开/收起
-// const togglePractice = () => {
-//   practiceExpanded.value = !practiceExpanded.value
-// }
+const togglePractice = () => {
+  practiceExpanded.value = !practiceExpanded.value
+}
 
 if (route.path.includes('/homework/')) {
   homeworkExpanded.value = true