feat: 小程序移除管理后台入口，新增admin-web前端项目

将管理后台功能从微信小程序中剥离，独立为Vue.js前端项目admin-web

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

miniprogram/pages/profile/index.wxml

@@ -37,33 +37,6 @@
     <button class="btn btn-primary" loading="{{loading}}" bindtap="save">保存资料</button>
   </view>
 
-  <view class="card fade-up fade-up-delay-2" wx:if="{{user && user.is_admin}}">
-    <view class="card-title">管理员入口</view>
-    <view class="card-desc">管理后台功能快速访问。</view>
-    <view class="grid-2">
-      <view class="module-card" data-path="/pages/admin-dashboard/index" bindtap="goto">
-        <view class="module-name">运营看板</view>
-        <view class="module-desc">监控发布、拦截、样本和模型状态</view>
-        <view class="module-tag">数据概览</view>
-      </view>
-      <view class="module-card" data-path="/pages/admin-review/index" bindtap="goto">
-        <view class="module-name">复核与申诉</view>
-        <view class="module-desc">处理拦截复核和用户申诉</view>
-        <view class="module-tag">审核处理</view>
-      </view>
-      <view class="module-card" data-path="/pages/admin-samples/index" bindtap="goto">
-        <view class="module-name">样本管理</view>
-        <view class="module-desc">维护训练样本并触发模型重训</view>
-        <view class="module-tag">模型迭代</view>
-      </view>
-      <view class="module-card" data-path="/pages/admin-users/index" bindtap="goto">
-        <view class="module-name">用户管理</view>
-        <view class="module-desc">编辑用户信息和权限</view>
-        <view class="module-tag">权限管理</view>
-      </view>
-    </view>
-  </view>
-
   <view class="card fade-up fade-up-delay-3">
     <button class="btn btn-ghost" bindtap="logout">退出登录</button>
   </view>