fix(authRedirect): 修复检查用户是否有家庭时的数据判断逻辑

修复当data对象存在但families字段不存在时的判断错误，使用可选链操作符确保安全访问

 /*
  * @Date: 2025-01-25 10:00:00
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-13 09:07:59
+ * @LastEditTime: 2025-09-23 14:33:30
  * @FilePath: /lls_program/src/utils/authRedirect.js
  * @Description: 授权重定向处理工具函数
  */
@@ -69,7 +69,7 @@ export const navigateToAuth = (returnPath) => {
 export const checkUserHasFamily = async () => {
   try {
     const { code, data } = await getMyFamiliesAPI()
-    if (code && data && data.length > 0) {
+    if (code && data && data?.families?.length > 0) {
       return true
     }
     return false