fix(CollapsibleCalendar): 修复课程名称过长导致的布局问题

为课程名称添加最大宽度和省略号显示，防止过长文本破坏布局
```

```msg
feat(CheckinDetailPage): 添加提交按钮的禁用状态逻辑

根据表单验证条件动态禁用提交按钮，防止无效提交

 <!--
 <!--
  * @Date: 2025-01-25 15:34:17
  * @Date: 2025-01-25 15:34:17
  * @LastEditors: hookehuyr hookehuyr@gmail.com
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-12-11 09:31:06
+ * @LastEditTime: 2025-12-11 13:55:33
  * @FilePath: /mlaj/src/components/ui/CollapsibleCalendar.vue
  * @FilePath: /mlaj/src/components/ui/CollapsibleCalendar.vue
  * @Description: 可折叠日历组件
  * @Description: 可折叠日历组件
 -->
 -->
@@ -129,7 +129,7 @@ const showCoursePicker = ref(false)
 const selectedCourseText = ref('全部作业')
 const selectedCourseText = ref('全部作业')
 const courseColumns = [
 const courseColumns = [
     { text: '全部作业', value: '' },
     { text: '全部作业', value: '' },
-    { text: '语文语文语文语文语文语文', value: 'chinese' },
+    { text: '语文语文语文语文语文语文数学英语化学化学化学化学英语', value: 'chinese' },
     { text: '数学', value: 'math' },
     { text: '数学', value: 'math' },
     { text: '英语', value: 'english' },
     { text: '英语', value: 'english' },
     { text: '物理', value: 'physics' },
     { text: '物理', value: 'physics' },
@@ -367,6 +367,9 @@ defineExpose({
                 color: #4caf50;
                 color: #4caf50;
                 font-weight: 600;
                 font-weight: 600;
                 white-space: nowrap;
                 white-space: nowrap;
+                max-width: 10rem;
+                overflow: hidden;
+                text-overflow: ellipsis;
             }
             }
 
 
             .calendar-arrow {
             .calendar-arrow {

@@ -131,7 +131,7 @@
 
 
             <!-- 提交按钮 -->
             <!-- 提交按钮 -->
             <div v-if="!taskDetail.is_finish || isEditMode" class="submit-area">
             <div v-if="!taskDetail.is_finish || isEditMode" class="submit-area">
-                <van-button type="primary" block size="large" :loading="uploading" @click="handleSubmit">
+                <van-button type="primary" block size="large" :loading="uploading" :disabled="isSubmitDisabled" @click="handleSubmit">
                     {{ isEditMode ? '保存修改' : '提交' }}
                     {{ isEditMode ? '保存修改' : '提交' }}
                 </van-button>
                 </van-button>
             </div>
             </div>
@@ -311,6 +311,32 @@ const confirmAddTarget = () => {
     dynamicFormFields.value.forEach(field => field.value = '')
     dynamicFormFields.value.forEach(field => field.value = '')
 }
 }
 
 
+/**
+ * 是否禁用提交按钮
+ */
+const isSubmitDisabled = computed(() => {
+    // 1. 校验作业选择
+    if (!selectedTaskValue.value) return true
+
+    // 2. 计数打卡特定校验
+    if (taskType.value === 'count') {
+        // 必须选择至少一个对象
+        if (selectedTargets.value.length === 0) return true
+        // 次数必须大于0
+        if (!countValue.value || countValue.value <= 0) return true
+        return false
+    }
+
+    // 3. 普通打卡校验
+    if (activeType.value === 'text') {
+        // 文本打卡：必须填写内容且长度不少于10个字符
+        return !message.value.trim() || message.value.trim().length < 10
+    } else {
+        // 其他类型：必须有文件
+        return fileList.value.length === 0
+    }
+})
+
 const handleSubmit = async () => {
 const handleSubmit = async () => {
     // 1. 校验作业选择
     // 1. 校验作业选择
     if (!selectedTaskValue.value) {
     if (!selectedTaskValue.value) {