feat: 集成edu-core模块并重构课程详情页视频播放

- 添加edu-core本地依赖，用于视频播放组件
- 重构课程详情页，使用CourseVideo组件替换原有视频播放逻辑
- 优化课程列表页布局和样式，修复边框单位问题
- 更新manifest.json支持多方向屏幕旋转

pages/doctors/article.vue

@@ -292,7 +292,7 @@ export default {
   margin: 0 30rpx 20rpx;
 }
 .doctors_item {
-  border: 1rpx solid $themeColor;
+  border: 1px solid $themeColor;
   border-radius: 15rpx;
   margin-bottom: 20rpx;
   padding: 25rpx 25rpx 60rpx;

pages/doctors/index.vue

@@ -76,7 +76,7 @@
       @scrolltolower="loadMore"
       :style="`
           height: calc(100vh - ${activeTab == 0 ? 320 : 180}rpx);
-          margin-top: ${activeTab == 0 ? 260 : 80}rpx;
+          margin-top: ${activeTab == 0 ? 270 : 80}rpx;
           padding-bottom: 140rpx;`"
       v-if="show == true"
     >
@@ -813,7 +813,7 @@ readArticle(item){
   margin: 0 20rpx 20rpx;
 }
 .doctors_item {
-  border: 1rpx solid $themeColor;
+  border: 1px solid $themeColor;
   border-radius: 15rpx;
   margin-bottom: 20rpx;
   padding: 25rpx 25rpx 60rpx;