fix(文件上传): 限制视频上传格式并添加MOV格式提示

在视频上传前检查文件格式，拦截MOV文件并显示兼容性提示对话框
将视频上传的accept类型限制为MP4格式，更新上传提示信息

 <!--
   * @Date: 2025-09-30 17:05
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2026-01-23 16:59:38
+ * @LastEditTime: 2026-01-24 15:23:44
  * @FilePath: /mlaj/src/views/checkin/CheckinDetailPage.vue
   * @Description: 用户打卡详情页
 -->
@@ -99,7 +99,7 @@
                         <!-- 文件上传区域 -->
                         <div v-if="activeType !== '' && activeType !== 'text'" class="upload-area">
                             <van-uploader v-model="displayFileList" :max-count="maxCount" :max-size="maxFileSizeBytes"
-                                :before-read="beforeRead" :after-read="afterRead" @delete="onDelete"
+                                :before-read="beforeReadGuard" :after-read="afterRead" @delete="onDelete"
                                 @click-preview="onClickPreview" multiple :accept="getAcceptType()" result-type="file"
                                 :deletable="true" upload-icon="plus" />
 
@@ -191,7 +191,7 @@ import AudioPlayer from '@/components/media/AudioPlayer.vue'
 import VideoPlayer from '@/components/media/VideoPlayer.vue'
 import AddTargetDialog from '@/components/count/AddTargetDialog.vue'
 import CheckinTargetList from '@/components/count/CheckinTargetList.vue'
-import { showToast, showLoadingToast } from 'vant'
+import { showToast, showLoadingToast, showDialog } from 'vant'
 import dayjs from 'dayjs'
 
 const route = useRoute()
@@ -224,6 +224,28 @@ const {
     gratitudeFormList
 } = useCheckin()
 
+const beforeReadGuard = (file) => {
+    if (activeType.value !== 'video') return beforeRead(file)
+
+    const files = Array.isArray(file) ? file : [file]
+    const hasMov = files.some(item => {
+        const fileName = String(item?.name || '').toLowerCase()
+        const fileType = String(item?.type || '').toLowerCase()
+        return fileName.endsWith('.mov') || fileType.includes('quicktime')
+    })
+
+    if (hasMov) {
+        showDialog({
+            title: '不支持 MOV 格式',
+            message: 'MOV（QuickTime）在非苹果系统/部分播放器兼容性较差，可能出现无法打开、黑屏、无声等问题。\n\n请将视频导出/转换为 MP4（更通用）后再上传。',
+            confirmButtonText: '我知道了',
+        })
+        return false
+    }
+
+    return beforeRead(file)
+}
+
 /**
  * 获取指定类型的文件数量
  * @param {string} type - 文件类型
@@ -685,7 +707,7 @@ const getFileIcon = () => {
 const getAcceptType = () => {
     const acceptMap = {
         'image': 'image/*',
-        'video': 'video/*',
+        'video': '.mp4,video/mp4',
         'audio': '.mp3,.wav,.aac,.flac,.ogg,.wma,.m4a'
     }
     return acceptMap[activeType.value] || '*'
@@ -698,7 +720,7 @@ const getAcceptType = () => {
 const getUploadTips = () => {
     const tipsMap = {
         'image': '支持格式：.jpg/.jpeg/.png',
-        'video': '支持格式：视频文件',
+        'video': '支持格式：.mp4（不支持 .mov）',
         'audio': '支持格式：.mp3/.wav/.aac/.flac/.ogg/.wma/.m4a'
     }
     return tipsMap[activeType.value] || ''