refactor(family): 统一默认家庭封面图片变量名并优化欢迎页用户年龄计算

将默认家庭封面图片的导入变量名从defaultFamilyCover改为defaultFamilyCoverSvg以避免命名冲突
在欢迎页添加onMounted钩子模拟获取用户信息并计算年龄

 <!--
  * @Date: 2025-08-27 17:44:53
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-02 11:36:49
+ * @LastEditTime: 2025-09-02 11:51:18
  * @FilePath: /lls_program/src/pages/CreateFamily/index.vue
  * @Description: 文件描述
 -->
@@ -177,7 +177,7 @@ import Taro from '@tarojs/taro';
 import { Edit, Tips, Photograph, Right } from '@nutui/icons-vue-taro';
 // import AppHeader from '../../components/AppHeader.vue';
 import BASE_URL from '@/utils/config';
-import defaultFamilyCover from '@/assets/images/default-family-cover.png';
+import defaultFamilyCoverSvg from '@/assets/images/default-family-cover.png';
 
 const familyName = ref('');
 const familyIntro = ref('');
@@ -214,7 +214,7 @@ const districtColumns = ref([
 const familyAvatar = ref('');
 const focusedIndex = ref(-1);
 const inputRefs = ref([]);
-const defaultFamilyCover = ref(defaultFamilyCover);
+const defaultFamilyCover = ref(defaultFamilyCoverSvg);
 
 const isFormValid = computed(() => {
   return (

 <!--
  * @Date: 2025-08-27 17:44:53
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-02 11:38:50
+ * @LastEditTime: 2025-09-02 11:51:36
  * @FilePath: /lls_program/src/pages/EditFamily/index.vue
  * @Description: 文件描述
 -->
@@ -173,7 +173,7 @@ import Taro from '@tarojs/taro';
 import { Edit, Tips, Photograph, Right } from '@nutui/icons-vue-taro';
 // import AppHeader from '../../components/AppHeader.vue';
 import BASE_URL from '@/utils/config';
-import defaultFamilyCover from '@/assets/images/default-family-cover.png';
+import defaultFamilyCoverSvg from '@/assets/images/default-family-cover.png';
 
 const familyName = ref('');
 const familyIntro = ref('');
@@ -209,7 +209,7 @@ const districtColumns = ref([
 ]);
 const familyAvatar = ref('');
 const focusedIndex = ref(-1);
-const defaultFamilyCover = ref(defaultFamilyCover);
+const defaultFamilyCover = ref(defaultFamilyCoverSvg);
 
 // 图片预览相关
 const previewVisible = ref(false);

 <!--
  * @Date: 2025-08-27 17:43:45
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-08-28 22:47:16
+ * @LastEditTime: 2025-09-02 11:52:57
  * @FilePath: /lls_program/src/pages/Welcome/index.vue
  * @Description: 文件描述
 -->
@@ -75,19 +75,39 @@
 </template>
 
 <script setup>
-import { ref, computed } from 'vue';
+import { ref, computed, onMounted } from 'vue';
 import Taro from '@tarojs/taro';
 import BottomNav from '../../components/BottomNav.vue'; // 假设BottomNav组件已转换
 import welcomeHomeImg from '../../assets/images/welcome_home.png';
 
 // TODO: 等待真实接口获取用户年龄
-const userAge = ref(65); // or 55 to test the other case
+const userAge = ref(null);
+const userInfo = ref({
+  age: null,
+  name: null,
+  phone: null,
+});
 const canCreateFamily = computed(() => userAge.value >= 60);
 
 const navigateTo = (url) => {
   Taro.navigateTo({ url });
 };
 
+onMounted(() => {
+  // 模拟获取用户的个人信息
+  const userInfo = {
+    age: '1890-01-01',
+    name: '张三',
+    phone: '13800000000',
+  };
+
+  userInfo.value = userInfo;
+  // userInfo.age 是年月日的形式需要转成年龄
+  userInfo.value.age = new Date().getFullYear() - new Date(userInfo.value.age).getFullYear();
+  userAge.value = userInfo.value.age;
+  console.warn(userAge.value);
+});
+
 const handleNavigate = (url) => {
   // TODO: 模拟检查个人信息是否完善
   const hasProfile = true; // 假设未完善