删除 Kbone 小程序开发技能相关文档，优化项目结构以提升可维护性。

miniprogram/pages/purchases/purchases.wxml

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+<!--订单页-->
+<view class="page">
+  <view class="nav-bar" style="padding-top: {{statusBarHeight}}px;">
+    <view class="nav-back" bindtap="goBack">←</view>
+    <text class="nav-title">我的订单</text>
+    <view class="nav-placeholder"></view>
+  </view>
+  <view style="height: {{statusBarHeight + 44}}px;"></view>
+
+  <view class="content">
+    <view class="loading" wx:if="{{loading}}">
+      <view class="skeleton"></view>
+      <view class="skeleton"></view>
+      <view class="skeleton"></view>
+    </view>
+
+    <view class="orders-list" wx:elif="{{orders.length > 0}}">
+      <view class="order-item" wx:for="{{orders}}" wx:key="id" bindtap="goToRead" data-id="{{item.sectionId}}">
+        <view class="order-info">
+          <text class="order-title">{{item.title}}</text>
+          <text class="order-time">{{item.createTime}}</text>
+        </view>
+        <view class="order-right">
+          <text class="order-amount">¥{{item.amount}}</text>
+          <text class="order-status">已完成</text>
+        </view>
+      </view>
+    </view>
+
+    <view class="empty" wx:else>
+      <text class="empty-icon">📦</text>
+      <text class="empty-text">暂无订单</text>
+    </view>
+  </view>
+</view>