refactor: 统一替换小程序事件绑定为@tap并优化跳转逻辑

1. 全局替换@click为@tap以适配uni-app事件规范
2. 优化toLogin方法的路由获取逻辑，增加空值判断
3. 重构redirectTo跳转逻辑，统一tab页跳转使用reLaunch确保页面栈正确

pages/index/index.vue

@@ -52,12 +52,12 @@
 							<swiper autoplay="true" :circular="true" indicator-active-color="#fff"
 								indicator-color="rgba(255,255,255,0.6)" :indicator-dots="true" interval="3000">
 								<swiper-item v-for="(item, index) in adv.list" :key="index">
-									<image class="slide-image" @click="$util.diyRedirectTo(item.link)" height="100%"
+									<image class="slide-image" @tap="$util.diyRedirectTo(item.link)" height="100%"
 										:src="$util.img(item.imageUrl)" width="100%" show-menu-by-longpress></image>
 									<!-- 	<image bindtap="adverclose" class="slide-image" height="100%" src="{{item.imgurl}}" width="100%" wx:if="{{item.click==1}}" show-menu-by-longpress></image> -->
 								</swiper-item>
 							</swiper>
-							<view bindtap="adverclose" class="small-bot-close" @click="closePopupWindow">
+							<view class="small-bot-close" @tap="closePopupWindow">
 								<i class="iconfont icon-round-close" style="color:#fff"></i>
 							</view>
 						</view>