feat(course): 添加外部链接组件及预览模式支持

- 新增 LinkComp 组件用于处理外部链接资源
- 在 createCourse.vue 中注册并使用 LinkComp 组件
- 实现添加外部链接功能，设置 resType 为 52
- EditorComp 和 LinkComp 支持 isPreview 禁用编辑状态
- useCourseData.js 初始化 resType 默认值改为 0

src/views/courselibrary/components/createCourse.vue

@@ -12,8 +12,9 @@ import VideoComp from "@/components/CreatedCourse/preview/VideoComp.vue";
 import AudioComp from "@/components/CreatedCourse/preview/AudioComp.vue";
 import EditorComp from "@/components/CreatedCourse/preview/EditorComp.vue";
 import DocComp from "@/components/CreatedCourse/preview/DocComp.vue";
+import LinkComp from "@/components/CreatedCourse/preview/LinkComp.vue";
 import { getType } from "@/hooks/useCreateCourseMaps";
-const mapComponents = [VideoComp, AudioComp, EditorComp, DocComp];
+const mapComponents = [VideoComp, AudioComp, EditorComp, DocComp, LinkComp];
 
 // 使用课程数据hook
 const { courseMetadata, courseList, courseActionButtons, addChapter } =
@@ -46,7 +47,9 @@ const courseOperations = {
     showSettingDialog.value = true;
   },
   addExternalLink: () => {
-    console.log("添加外部链接功能调用");
+    courseMetadata.resType = 52;
+    chooseItemData.value.resType = 52;
+    showSettingDialog.value = true;
   },
   addScorm: () => {
     console.log("添加SCORM功能调用");