feat(share): 补做首页分享功能，支持仅分享到好友

- useShare 增加 enableTimeline 配置，默认启用朋友圈分享
- 首页配置 enableShareAppMessage 并调用 useShare，enableTimeline 设为 false
- 解决 tabBar 页微信不支持朋友圈分享的问题，避免无效注册
- 分享路径添加裂变参数，增强邀请下级功能
- 保持类型检查零错误，改动兼容现有历史 TS2688 错误

src/pages/index/index.tsx

@@ -2,6 +2,7 @@ import React, { useState, useEffect } from 'react'
 import { View, Text, ScrollView, Swiper, SwiperItem, Image } from '@tarojs/components'
 import Taro from '@tarojs/taro'
 import { useUser } from '@/hooks/useUser'
+import { useShare } from '@/hooks/useShare'
 import { useScrollHeight } from '@/hooks/useScrollHeight'
 import { listCmsAd } from '@/api/cms/cmsAd'
 import { listCmsArticle } from '@/api/cms/cmsArticle'
@@ -14,6 +15,7 @@ import { getCompressedImageUrl } from '@/utils/image'
 
 definePageConfig({
   navigationBarTitleText: '首页',
+  enableShareAppMessage: true,
 })
 
 const IndexPage: React.FC = () => {
@@ -24,6 +26,13 @@ const IndexPage: React.FC = () => {
   const [loading, setLoading] = useState(true)
   const scrollHeight = useScrollHeight(44)
 
+  // 首页分享给好友（tabBar 页不支持朋友圈，仅启用好友分享）
+  useShare({
+    title: '鑫龙家电 - 精选好物，实惠到家，等你来逛~',
+    path: '/pages/index/index',
+    enableTimeline: false,
+  })
+
 
   const categories = ['全部', '球拍', '球鞋', '服装', '配件']