整理文档并接入 H5 体验测试链路

miniprogram/pages/experience-webview/experience-webview.wxml

@@ -0,0 +1,11 @@
+<view wx:if="{{!webViewReady}}" class="experience-webview__loading">
+  <view class="experience-webview__loading-title">内容页加载中</view>
+  <view wx:if="{{loadErrorText}}" class="experience-webview__loading-error">{{loadErrorText}}</view>
+</view>
+
+<web-view
+  wx:if="{{webViewReady && webViewSrc}}"
+  src="{{webViewSrc}}"
+  bindmessage="handleWebViewMessage"
+  binderror="handleWebViewError"
+></web-view>