feat: 完善淘宝小程序拍照、报告与登录流程

接入本地实时识别和自动三连拍，调整报告裁切、商品跳转、分享标题及居中页眉；完善游客会话、后台渠道隔离、部署脚本与回归测试。

taobao/pages/splash/splash.axml

@@ -1,20 +1,7 @@
+<import src="../../components/brand-header.axml" />
+<template is="brand-header" data="{{brandHeader: brandHeader}}" />
 <!-- ═════ 01 启动页 —— 对照 H5 index.html #s-splash(L43-58) + #p-privacy(L294-307) + #p-policy(L335-466) ═════ -->
-<view class="splash">
-  <!-- 开发版入口(H5 无此入口,保持现有实现,样式低调) -->
-  <view class="dev-entries" a:if="{{showCameraDebug || showMvpDebug || showDiagnose}}">
-    <view class="dev-entry" a:if="{{showCameraDebug}}" onTap="onCameraDebug">开发调试 · 相机验收</view>
-    <view class="dev-entry" a:if="{{showMvpDebug}}" onTap="onMvpDebug">SAE MVP 连通性</view>
-    <view class="dev-entry" a:if="{{showDiagnose}}" onTap="onDiagnose">权限诊断</view>
-    <view class="dev-entry" a:if="{{showDiagnose}}" onTap="onCamTest">相机组件测试</view>
-  </view>
-  <!-- 诊断结果浮层:真机上唯一能看到相机能力/授权返回值的地方 -->
-  <view class="diag-panel" a:if="{{diagText}}">
-    <scroll-view class="diag-scroll" scroll-y>
-      <text class="diag-text">{{diagText}}</text>
-    </scroll-view>
-    <view class="diag-close" onTap="onCloseDiagnose">关闭</view>
-  </view>
-
+<view class="splash" style="margin-top:{{brandHeader.height}}px;height:calc(100vh - {{brandHeader.height}}px);">
   <!-- H5 .splash-bg -->
   <image class="splash-bg" src="{{bgUrl}}" mode="aspectFill" />