docs(UploadMediaPopup): 更新组件标题为"拍照留念"并添加文件头注释

+<!--
+ * @Date: 2025-09-22 10:10:44
+ * @LastEditors: hookehuyr hookehuyr@gmail.com
+ * @LastEditTime: 2025-09-22 11:00:26
+ * @FilePath: /lls_program/src/components/UploadMediaPopup.vue
+ * @Description: 文件描述
+-->
 <template>
   <PopupWrapper
     v-model:visible="popupVisible"
     position="right"
-    title="上传照片/视频"
+    title="拍照留念"
     :fullscreen="true"
     :close-on-click-overlay="false"
     @close="handleClose"
@@ -76,4 +83,4 @@ const handleClose = () => {
 
 <style lang="less" scoped>
 // 组件样式由PopupWrapper和UploadMediaComponent提供
-</style>
\ No newline at end of file
+</style>