点名、成绩册统一读取“行政班在籍学生 ∪ 已选课学生”，不再错误显示 0 人。

教师选课名单改为展示全部本人教学班及完整学生名单，支持 Excel 导出。
调停课改用教师专用教学班接口，并在服务端限制只能操作本人教学班。

web/src/views/CourseAdjustmentsView.vue

@@ -101,6 +101,18 @@ async function submit() {
   } catch (e) { ElMessage.error(apiErrorMessage(e)) }
 }
 
+async function loadTaskOptions() {
+  if (!isTeacher.value && isManager.value) return
+  try {
+    tasks.value = (await http.get('/course-adjustments/task-options', {
+      params: { academicTermId: termId.value || undefined },
+    })).data
+  } catch (error) {
+    tasks.value = []
+    ElMessage.error(apiErrorMessage(error))
+  }
+}
+
 async function doSubmit(adj: any) {
   try {
     await http.post(`/course-adjustments/${adj.id}/submit`)
@@ -137,16 +149,13 @@ async function doReject() {
 
 onMounted(async () => {
   try {
-    const [termRes, taskRes] = await Promise.all([
-      http.get('/base-data/terms'),
-      isTeacher.value || !isManager.value
-        ? http.get('/teaching-tasks', { params: { page: 1, pageSize: 100 } })
-        : Promise.resolve({ data: { items: [] } }),
-    ])
+    const termRes = await http.get('/base-data/terms')
     terms.value = termRes.data
-    tasks.value = taskRes.data.items
     termId.value = defaultAcademicTermId(terms.value)
-  } catch (_) {}
+    await loadTaskOptions()
+  } catch (error) {
+    ElMessage.error(apiErrorMessage(error))
+  }
   await load()
 })
 
@@ -173,7 +182,7 @@ function showCancel(type: string) { return type === 'Cancel' }
     </section>
 
     <section class="adj-toolbar">
-      <el-select v-model="termId" clearable placeholder="全部学期" @change="load">
+      <el-select v-model="termId" clearable placeholder="全部学期" @change="load(); loadTaskOptions()">
         <el-option v-for="t in terms" :key="t.id" :label="academicTermLabel(t)" :value="t.id" :class="academicTermOptionClass(t)" />
       </el-select>
       <el-segmented v-model="tab" :options="[