feat: init project with miniprogram, cloud functions and admin console

miniprogram/pages/scan/scan.wxml

@@ -0,0 +1,29 @@
+<view class="container">
+  <view class="card text-center">
+    <view class="section-title">绑定新设备</view>
+    <view class="text-muted mb-30">请扫描设备底部或包装盒上的二维码</view>
+    <view class="btn-primary" bindtap="onScan" disabled="{{scanning}}">
+      {{scanning ? '扫描中...' : '扫描二维码'}}
+    </view>
+  </view>
+
+  <view class="card" wx:if="{{error}}">
+    <text class="text-error">{{error}}</text>
+  </view>
+
+  <view class="card">
+    <view class="section-title">绑定步骤</view>
+    <view class="step">
+      <text class="step-num">1</text>
+      <text class="step-text">扫描设备二维码获取设备ID</text>
+    </view>
+    <view class="step">
+      <text class="step-num">2</text>
+      <text class="step-text">打开蓝牙连接设备</text>
+    </view>
+    <view class="step">
+      <text class="step-num">3</text>
+      <text class="step-text">绑定成功，开始使用</text>
+    </view>
+  </view>
+</view>