fix: make phone authorization skippable in registration

getPhoneNumber requires verified enterprise miniprogram account.
Allow users to skip phone auth and complete registration without it.

miniprogram/pages/register/register.wxml

@@ -26,11 +26,19 @@
           <text class="phone-text">{{phone}}</text>
         </view>
       </block>
+      <block wx:elif="{{phoneSkipped}}">
+        <view class="phone-done phone-skipped">
+          <text class="phone-text">已跳过，可稍后在设置中授权</text>
+        </view>
+      </block>
       <block wx:else>
         <button class="phone-btn" open-type="getPhoneNumber" bindgetphonenumber="onGetPhoneNumber" disabled="{{loading}}">
           授权手机号
         </button>
-        <view class="phone-hint">手机号用于接收服务通知，必须授权</view>
+        <view class="phone-actions">
+          <view class="phone-hint">手机号用于接收服务通知</view>
+          <view class="phone-skip" bindtap="onSkipPhone">跳过</view>
+        </view>
       </block>
     </view>