优化：请求接口全局处理loading和错误提示

pages/course/details/chapter.vue

@@ -164,23 +164,19 @@ onLoad((options: any) => {
  * 加载章节详情
  */
 const loadChapterDetail = async () => {
-  try {    
-    const res = await courseApi.getChapterDetail(chapterId.value)
-    if (res.code === 0 && res.data) {
-      chapterDetail.value = res.data.detail
-      videoList.value = res.data.videos || []
+  const res = await courseApi.getChapterDetail(chapterId.value)
+  if (res.code === 0 && res.data) {
+    chapterDetail.value = res.data.detail
+    videoList.value = res.data.videos || []
 
-      // 如果有历史播放记录，定位到对应视频
-      if (res.data.current) {
-        const index = videoList.value.findIndex(v => v.id === res.data.current)
-        if (index !== -1) {
-          currentVideoIndex.value = index
-          activeVideoIndex.value = index
-        }
+    // 如果有历史播放记录，定位到对应视频
+    if (res.data.current) {
+      const index = videoList.value.findIndex(v => v.id === res.data.current)
+      if (index !== -1) {
+        currentVideoIndex.value = index
+        activeVideoIndex.value = index
       }
     }
-  } catch (error) {
-    console.error('加载章节详情失败:', error)
   }
 }