同步小程序与管理端更新，完善抽烟记录和解绑冷静期

weapp/pages/timeline-detail/timeline-detail.wxml

@@ -1,4 +1,4 @@
-<view class="app-shell app-shell--secondary" style="{{layoutStyle}}">
+<view class="app-shell app-shell--secondary {{bgImageUrl ? 'detail-immersive' : ''}}" style="{{layoutStyle}}">
 <launch-transition />
 <!-- pages/timeline-detail/timeline-detail.wxml -->
 <page-meta page-style="{{bgImageUrl ? 'background: transparent;' : ''}}"></page-meta>
@@ -6,7 +6,8 @@
 <image wx:if="{{bgImageUrl}}" src="{{bgImageUrl}}" mode="aspectFill" class="detail-bg-custom" />
 <view class="detail-bg-overlay" wx:if="{{bgImageUrl}}"></view>
 
-<app-nav title="记忆日详情" back="{{true}}" />
+<app-nav wx:if="{{!bgImageUrl}}" title="记忆日详情" back="{{true}}" />
+<view wx:else class="detail-photo-nav" style="height:{{barHeight}}px;" bindtap="goBack" aria-label="返回"><image src="/images/back-white.svg" mode="aspectFit" /></view>
 
 <scroll-view class="page-bg {{bgImageUrl ? 'page-bg-has-bg' : ''}}" scroll-y show-scrollbar="{{false}}" bounces="{{true}}" style="height:100vh;"
   bindtouchstart="onTouchStart" bindtouchend="onTouchEnd">