feat: add resident miniapp MVP

miniapp/miniprogram/pages/second-hand/index.wxml

@@ -1 +1,18 @@
-<view class="page">二手闲置</view>
+<view class="page">
+  <view class="row between section">
+    <view class="section-title">二手闲置</view>
+    <button size="mini" class="primary" bindtap="goCreate">发布</button>
+  </view>
+  <view wx:for="{{goods}}" wx:key="id" class="card">
+    <view class="row between">
+      <view>
+        <view>{{item.title}}</view>
+        <view class="muted">{{item.category}} / {{item.tradeMethod}}</view>
+      </view>
+      <view class="price">¥{{item.priceCent / 100}}</view>
+    </view>
+    <view class="muted">{{item.description}}</view>
+    <button size="mini" class="ghost" data-phone="{{item.contactPhone}}" bindtap="callSeller">联系卖家</button>
+  </view>
+  <view wx:if="{{!goods.length && !loading}}" class="card muted">暂无闲置</view>
+</view>