fix: 更新默认家庭封面和头像图片链接

统一将默认家庭封面和头像图片链接更新为新的全家福图片，并移除重复的默认封面定义

 <!--
  * @Date: 2025-01-09 00:00:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-19 17:58:30
+ * @LastEditTime: 2025-09-28 11:28:21
  * @FilePath: /lls_program/src/components/RankingCard.vue
  * @Description: 排行榜卡片组件
 -->
@@ -138,7 +138,7 @@ import { ref, computed, onMounted } from 'vue'
 import Taro from '@tarojs/taro'
 import { IconFont } from '@nutui/icons-vue-taro';
 // 默认头像
-const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
+const defaultAvatar = 'https://cdn.ipadbiz.cn/lls_prog/images/%E5%85%A8%E5%AE%B6%E7%A6%8F3_%E5%89%AF%E6%9C%AC.jpg?imageMogr2/strip/quality/60'
 // 助力榜图片
 const supportImg = 'https://cdn.ipadbiz.cn/lls_prog/images/support_img_1.png'
 // 导入接口

 <!--
  * @Date: 2025-08-27 17:44:53
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-22 15:24:36
+ * @LastEditTime: 2025-09-28 10:34:14
  * @FilePath: /lls_program/src/pages/CreateFamily/index.vue
  * @Description: 创建家庭
 -->
@@ -195,7 +195,6 @@ import { createFamilyAPI } from '@/api/family';
 // 区域信息
 import { SHANGHAI_REGION } from '@/utils/config';
 
-const defaultFamilyCoverSvg = 'https://cdn.ipadbiz.cn/lls_prog/images/default-family-cover.png?imageMogr2/strip/quality/60';
 const familyName = ref('');
 const familyIntro = ref('');
 const selectedDistrict = ref(null);
@@ -217,7 +216,6 @@ const districtColumns = ref(SHANGHAI_REGION);
 const familyAvatar = ref('');
 const focusedIndex = ref(-1);
 const inputRefs = ref([]);
-const defaultFamilyCover = ref(defaultFamilyCoverSvg);
 
 const isFormValid = computed(() => {
   return (

 <!--
  * @Date: 2025-08-27 17:43:45
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-26 11:00:45
+ * @LastEditTime: 2025-09-28 11:28:31
  * @FilePath: /lls_program/src/pages/Dashboard/index.vue
  * @Description: 首页
 -->
@@ -183,7 +183,7 @@ import RankingCard from '@/components/RankingCard.vue'
 import AdOverlay from '@/components/AdOverlay.vue'
 import FamilyAlbum from '@/components/FamilyAlbum.vue';
 // 默认家庭封面图
-const defaultFamilyCover = 'https://cdn.ipadbiz.cn/lls_prog/images/default-family-cover.png?imageMogr2/strip/quality/60';
+const defaultFamilyCover = 'https://cdn.ipadbiz.cn/lls_prog/images/%E5%85%A8%E5%AE%B6%E7%A6%8F3_%E5%89%AF%E6%9C%AC.jpg?imageMogr2/strip/quality/60';
 // 默认头像
 const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg?imageMogr2/strip/quality/60';
 // 接口信息

 <!--
  * @Date: 2025-08-27 17:44:53
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-25 10:02:49
+ * @LastEditTime: 2025-09-28 10:31:35
  * @FilePath: /lls_program/src/pages/EditFamily/index.vue
  * @Description: 文件描述
 -->
@@ -186,8 +186,6 @@ import Taro from '@tarojs/taro';
 import { Edit, Tips, Photograph, Right, IconFont } from '@nutui/icons-vue-taro';
 // import AppHeader from '../../components/AppHeader.vue';
 import BASE_URL from '@/utils/config';
-//
-const defaultFamilyCoverSvg = 'https://cdn.ipadbiz.cn/lls_prog/images/default-family-cover.png';
 // 获取接口信息
 import { editFamilyAPI, getFamilyInfoAPI } from '@/api/family';
 // 区域信息

 <!--
  * @Date: 2025-09-01 13:07:52
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-19 17:11:29
+ * @LastEditTime: 2025-09-28 11:27:08
  * @FilePath: /lls_program/src/pages/FamilyRank/index.vue
  * @Description: 文件描述
 -->
@@ -168,7 +168,7 @@ import { ref, computed, onMounted } from 'vue'
 import Taro from '@tarojs/taro'
 import BackToTop from '@/components/BackToTop.vue'
 // 默认头像
-const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
+const defaultAvatar = 'https://cdn.ipadbiz.cn/lls_prog/images/%E5%85%A8%E5%AE%B6%E7%A6%8F3_%E5%89%AF%E6%9C%AC.jpg?imageMogr2/strip/quality/60'
 const supportImg = 'https://cdn.ipadbiz.cn/lls_prog/images/support_img_1.png'
 // 导入接口
 import { getStepLeaderboardAPI } from '@/api/points'

@@ -243,7 +243,7 @@ import './index.less';
 // 获取接口信息
 import { getMyFamiliesAPI, switchCurrentFamilyAPI, deleteFamilyMemberAPI } from '@/api/family';
 //
-const defaultFamilyCoverSvg = 'https://cdn.ipadbiz.cn/lls_prog/images/default-family-cover.png?imageMogr2/strip/quality/60';
+const defaultFamilyCoverSvg = 'https://cdn.ipadbiz.cn/lls_prog/images/%E5%85%A8%E5%AE%B6%E7%A6%8F3_%E5%89%AF%E6%9C%AC.jpg?imageMogr2/strip/quality/60';
 // 默认头像
 const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg?imageMogr2/strip/quality/60';
 // 获取接口数据