fix(IndexCheckInPage): 修复团队头像显示限制逻辑

修改团队头像显示逻辑，当头像数量超过8个时仅显示前8个，否则显示全部

 <!--
   * @Date: 2025-05-29 15:34:17
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-12-17 10:07:42
+ * @LastEditTime: 2025-12-17 14:45:25
  * @FilePath: /mlaj/src/views/checkin/IndexCheckInPage.vue
   * @Description: 文件描述
 -->
@@ -78,7 +78,7 @@
             </div> -->
             <div style="padding: 0.75rem 1rem;">
               <van-image round width="2.8rem" height="2.8rem" :src="item ? item : 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'" fit="cover"
-                v-for="(item, index) in teamAvatars.splice(0, 8)" :key="index"
+                v-for="(item, index) in teamAvatars" :key="index"
                 :style="{ marginLeft: index > 0 ? '-0.5rem' : '', border: '2px solid #eff6ff', background: '#fff' }" />
             </div>
           </div>
@@ -558,7 +558,7 @@ const getTaskDetail = async (month) => {
     taskDetail.value = data;
     progress1.value = ((data.checkin_number/data.target_number)*100).toFixed(1); // 计算进度条百分比
     showProgress.value = !isNaN(progress1.value); // 如果是NaN，就不显示进度条
-    teamAvatars.value = data.checkin_avatars;
+    teamAvatars.value = taskDetail.value.checkin_avatars.length > 8 ? taskDetail.value.checkin_avatars.splice(0, 8) : taskDetail.value.checkin_avatars;
     // 获取当前用户的打卡日期
     myCheckinDates.value = data.my_checkin_dates;
     // 获取当前用户的补卡日期