feat(app): 添加课程页面并优化打卡和计划功能

- 新增 pages/course/course 页面，集成 web-view 显示线上课程列表
- 在 app.json 中注册课程页面并添加底部 tabbar 导航
- 优化打卡页面，添加学号显示和改进成员列表布局
- 重构计划页面，添加内容详情弹层和优化加载逻辑
- 添加阿里云 OSS 上传工具模块用于文件上传功能
- 统一姓名和学号在同一行显示，改善 UI 体验
- 修复多个页面中的绑定事件和样式问题

pages/checkin/checkin.wxml

@@ -2,7 +2,7 @@
 <template name="top-card">
   <view class="card top-card {{checked ? 'done-card' : ''}}">
     <view class="status-row">
-      <view class="date-chip" bindtap="{{weekList.length > 0 ? 'openWeekPicker' : ''}}" hover-class="{{weekList.length > 0 ? 'date-chip-hover' : ''}}">
+      <view class="date-chip" bindtap="openWeekPicker" hover-class="{{weekList.length > 0 ? 'date-chip-hover' : 'none'}}">
         <view class="date-week">{{weekday}}</view>
         <view class="date-num">{{dayNum}}<text class="date-arrow" wx:if="{{weekList.length > 0}}"> ▾</text></view>
       </view>
@@ -38,7 +38,10 @@
   <view class="member {{item.checked ? 'ok' : 'idle'}}">
     <view class="member-avatar {{item.checked ? 'ok' : ''}}">{{item.shortName}}</view>
     <view class="member-info">
-      <view class="member-name">{{item.name}}</view>
+      <view class="member-line">
+        <text class="member-name">{{item.name}}</text>
+        <text class="member-sid" wx:if="{{item.student_id}}">学号 {{item.student_id}}</text>
+      </view>
       <view class="member-meta">{{item.checked ? ('打卡 ' + item.timeText) : ''}}</view>
     </view>
     <view class="member-badge {{item.checked ? 'ok' : 'idle'}}">{{item.checked ? item.record.status : '未打卡'}}</view>
@@ -115,7 +118,7 @@
         <view class="back" hover-class="back-hover" bindtap="backToOverview">‹ 返回</view>
         <view class="detail-title-wrap">
           <view class="detail-title">{{selectedGroupName}}</view>
-          <view class="detail-sub" bindtap="{{weekList.length > 0 ? 'openWeekPicker' : ''}}" hover-class="{{weekList.length > 0 ? 'head-hover' : ''}}">
+          <view class="detail-sub" bindtap="openWeekPicker" hover-class="{{weekList.length > 0 ? 'head-hover' : 'none'}}">
             {{classDate}} <text class="head-arrow" wx:if="{{weekList.length > 0}}"> ▾</text>
           </view>
         </view>
@@ -163,7 +166,7 @@
               <view class="empty-text">本周暂无打卡记录</view>
             </view>
             <view class="member-list" wx:else>
-            <block wx:for="{{members}}" wx:key="student_id" wx:for-item="item">
+            <block wx:for="{{members}}" wx:key="user_id" wx:for-item="item">
               <template is="member-item" data="{{item: item}}"></template>
             </block>
             </view>

pages/checkin/checkin.wxss

@@ -257,9 +257,24 @@
   min-width: 0;
   margin-left: 16rpx;
 }
+/* 姓名与学号同一行；姓名过长时省略，学号始终完整 */
+.member-line {
+  display: flex;
+  align-items: baseline;
+  gap: 12rpx;
+}
 .member-name {
   font-size: 28rpx;
   color: #2C1810;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.member-sid {
+  font-size: 22rpx;
+  color: #8B7A6A;
+  flex-shrink: 0;
 }
 .member.ok .member-name {
   color: #2E7D32;