fix: 为感恩计数添加默认值0防止undefined

 <!--
   * @Date: 2025-05-29 15:34:17
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-12-17 10:05:41
+ * @LastEditTime: 2025-12-17 10:07:42
  * @FilePath: /mlaj/src/views/checkin/IndexCheckInPage.vue
   * @Description: 文件描述
 -->
@@ -567,8 +567,8 @@ const getTaskDetail = async (month) => {
     // myCheckinDates.value = myCheckinDates.value.map(date => {
     //   return dayjs(date).date();
     // })
-    myTodayGratitudeCount.value = data.my_today_gratitude_count;
-    myTotalGratitudeCount.value = data.my_total_gratitude_count;
+    myTodayGratitudeCount.value = data.my_today_gratitude_count || 0;
+    myTotalGratitudeCount.value = data.my_total_gratitude_count || 0;
   }
 }