refactor(Dashboard): 优化家庭数据获取逻辑并移除冗余代码

简化家庭数据获取流程，直接使用getFamilyDashboardAPI获取所有数据
移除冗余的initPageData方法和getMyFamiliesAPI调用
```

```msg
style(PosterCheckin): 调整二维码描述文本和代码格式

更新二维码描述为更友好的提示语
移除多余的空格保持代码整洁

@@ -201,7 +201,7 @@ const defaultFamilyCover = 'https://cdn.ipadbiz.cn/lls_prog/images/default-famil
 // 默认头像
 const defaultAvatar = 'https://cdn.ipadbiz.cn/mlaj/images/icon_1.jpeg'
 // 接口信息
-import { getMyFamiliesAPI, getFamilyDashboardAPI } from '@/api/family'
+import { getFamilyDashboardAPI } from '@/api/family'
 
 // 使用步数状态管理
 const stepsStore = useStepsStore();
@@ -284,7 +284,20 @@ const handleAuthChange = (authorized) => {
 const handleStepsSynced = async () => {
   console.log('微信步数同步完成')
   // 步数同步完成后，重新获取家庭数据
-  await initPageData()
+  const { code, data } = await getFamilyDashboardAPI();
+  if (code) {
+    // 更新页面数据
+    pendingPoints.value = data.pending_points || [];
+    familyMembers.value = data.step_ranking || [];
+    showTotalPointsOnly.value = !data.pending_points?.length;
+    finalTotalPoints.value = data.family.total_points || 0;
+    familyName.value = data.family.name;
+    familySlogn.value = data.family.note;
+    familyCover.value = data.family.avatar_url || defaultFamilyCover;
+    familyOwner.value = data.family.is_my;
+    todaySteps.value = data.my_today_step;
+    totalFamilySteps.value = data.family_today_step;
+  }
 }
 
 /**
@@ -331,49 +344,33 @@ const openFamilyRank = () => {
 const family_id = ref('');
 const totalFamilySteps = ref(0);
 
-const initPageData = async () => {
+useDidShow(async () => {
+  // 直接获取家庭首页数据，同时判断是否加入家庭
   const { code, data } = await getFamilyDashboardAPI();
   if (code) {
-    // 获取用户信息
-    console.warn(data);
-    // 设置待收集的积分数据
+    // 获取家庭ID
+    family_id.value = data.family.id;
+
+    // 设置页面数据（数据已经在getFamilyDashboardAPI中获取到了）
     pendingPoints.value = data.pending_points || [];
-    // 获取今日家庭总步数
     familyMembers.value = data.step_ranking || [];
-    // 根据是否有待收集积分决定显示模式
     showTotalPointsOnly.value = !data.pending_points?.length;
-    // 总积分数量从接口获取
     finalTotalPoints.value = data.family.total_points || 0;
-    // 获取用户信息
     familyName.value = data.family.name;
     familySlogn.value = data.family.note;
     familyCover.value = data.family.avatar_url || defaultFamilyCover;
     familyOwner.value = data.family.is_my;
-    // 获取今日我的步数
     todaySteps.value = data.my_today_step;
-    // 获取家庭总步数
     totalFamilySteps.value = data.family_today_step;
-  }
-}
 
-useDidShow(async () => {
-  // 获取用户是否加入家庭
-  const { code, data } = await getMyFamiliesAPI()
-  if (code) {
-    // 如果没有加入家庭
-    if (!data?.length) {
-      Taro.redirectTo({ url: '/pages/Welcome/index' });
-      return; // 直接返回，不执行后续逻辑
-    } else {
-      family_id.value = data[0].id;
-      // 先初始化基础页面数据（不包含步数相关数据）
-      await initPageData();
-
-      // 正常刷新微信步数数据
-      if (weRunAuthRef.value) {
-        weRunAuthRef.value.checkAuthStatus(true);
-      }
+    // 正常刷新微信步数数据
+    if (weRunAuthRef.value) {
+      weRunAuthRef.value.checkAuthStatus(true);
     }
+  } else {
+    // 如果没有加入家庭（code为0），跳转到欢迎页面
+    Taro.redirectTo({ url: '/pages/Welcome/index' });
+    return; // 直接返回，不执行后续逻辑
   }
 })
 

@@ -236,7 +236,7 @@ const posterList = ref([
       name: '第二关卡'
     },
     qrcode: 'https://cdn.ipadbiz.cn/space/068a790496c87cb8d2ed6e551401c544.png',
-    qrcodeDesc: '扫码加入我们的队伍！'
+    qrcodeDesc: '长按识别，来，我们一起打卡！'
   },
 ])
 
@@ -498,7 +498,7 @@ const generateCurrentPosterIfNeeded = () => {
   const currentHash = generateConfigHash()
   const isGenerated = posterGeneratedFlags.value[currentIndex]
   const lastHash = posterConfigHashes.value[currentIndex]
-  
+
   // 如果海报未生成过，或者配置发生了变化，则需要重新生成
   if (!isGenerated || lastHash !== currentHash) {
     posterConfigHashes.value[currentIndex] = currentHash
@@ -631,13 +631,13 @@ const onPosterSuccess = (result) => {
   const currentIndex = currentPosterIndex.value
   posterPath.value = result.tempFilePath
   posterGenerateFailed.value = false
-  
+
   // 更新当前海报的路径和生成状态
   if (posterList.value[currentIndex]) {
     posterList.value[currentIndex].path = result.tempFilePath
   }
   posterGeneratedFlags.value[currentIndex] = true
-  
+
   shouldGeneratePoster.value = false
   Taro.showToast({ title: '海报生成成功', icon: 'success' })
 }
@@ -650,10 +650,10 @@ const onPosterFail = (error) => {
   shouldGeneratePoster.value = false
   posterGenerateFailed.value = true
   posterPath.value = ''
-  
+
   // 标记当前海报生成失败，下次仍需重新生成
   posterGeneratedFlags.value[currentIndex] = false
-  
+
   Taro.showToast({ title: '海报生成失败', icon: 'none' })
   console.error('海报生成失败:', error)
 }