feat(fe): 宠物照片替代默认头像，身份卡移到首页门面卡

- 首页/我的/切换条：上传过照片就用照片，没有才退回 emoji
- 报告页分享海报：先异步加载头像再开画，画成圆形头像
- 一起生活的天数改成从到家日期算，没填就显示「-」并可点去补
- 身份卡入口从「我的」页移到首页门面卡右上角

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

pets-fe/pages/mine/mine.wxml

@@ -17,7 +17,10 @@
       <view class="link" bindtap="onAddPet">＋ 添加</view>
     </view>
     <view wx:for="{{pets}}" wx:key="id" class="pet-row" data-id="{{item.id}}" bindtap="onPickPet">
-      <view class="pet-emoji">{{item.emoji}}</view>
+      <view class="pet-emoji">
+        <image wx:if="{{item.avatar_url}}" class="pet-emoji-img" src="{{item.avatar_url}}" mode="aspectFill"></image>
+        <block wx:else>{{item.emoji}}</block>
+      </view>
       <view class="pet-info">
         <view class="tt-b">{{item.name}}</view>
         <view class="tt-p">{{item.age}}｜{{item.weight}}｜{{item.stage}}</view>
@@ -33,10 +36,6 @@
       <view class="pr-ic"><pt-icon name="user" size="{{34}}"></pt-icon></view>
       <text class="pr-label">宠物档案</text><view class="pr-arrow"><pt-icon name="next" size="{{28}}"></pt-icon></view>
     </view>
-    <view class="profile-row" bindtap="goIDCard">
-      <view class="pr-ic"><pt-icon name="user" size="{{34}}"></pt-icon></view>
-      <text class="pr-label">身份卡</text><text class="pr-val">可保存、分享</text><view class="pr-arrow"><pt-icon name="next" size="{{28}}"></pt-icon></view>
-    </view>
     <view class="profile-row" bindtap="goPlan">
       <view class="pr-ic"><pt-icon name="plan" size="{{34}}"></pt-icon></view>
       <text class="pr-label">养护计划</text><view class="pr-arrow"><pt-icon name="next" size="{{28}}"></pt-icon></view>