fix(teacher): 使用路由参数替代本地变量获取任务数据

修复学生记录页面中任务数据获取方式，从使用本地变量改为从路由参数获取，确保数据一致性

 <!--
  * @Date: 2025-11-19 22:05:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-12-12 21:26:17
+ * @LastEditTime: 2025-12-13 21:42:55
  * @FilePath: /mlaj/src/views/teacher/studentRecordPage.vue
  * @Description: 学生作业记录页面（仅作业记录与点评功能），固定 user_id 与 group_id
 -->
@@ -247,12 +247,12 @@ function handleAudioPlay(id) {
 async function onLoad() {
     const nextPage = page.value
     const res = await getCheckinTeacherListAPI({
-        task_id: task_id.value,
-        subtask_id: selectedSubtaskId.value,
+        task_id: $route.query.task_id,
+        subtask_id: $route.query.subtask_id,
         limit: limit.value,
         page: nextPage,
-        created_by: created_by.value,
-        date: date.value,
+        created_by: $route.query.created_by,
+        date: $route.query.date,
     })
     if (res.code) {
         checkinDataList.value = [...checkinDataList.value, ...formatData(res.data.checkin_list)]