Complete core mini program flows

pets-fe/pages/walk/walk.wxml

@@ -38,6 +38,7 @@
     <pet-picker
       pets="{{pets}}"
       selected="{{walk?walk.pet_ids:selected}}"
+      disabled="{{walk!==null}}"
       bind:change="pick"
     />
     <view wx:if="{{!pets.length}}" class="empty">
@@ -47,6 +48,7 @@
       wx:if="{{!walk||walk.status==='finished'}}"
       class="primary main-button"
       bindtap="start"
+      disabled="{{busy}}"
     >
       开始遛狗 →
     </button>
@@ -55,10 +57,11 @@
         class="secondary"
         data-kind="{{walk.status==='active'?'pause':'resume'}}"
         bindtap="action"
+        disabled="{{busy}}"
       >
         {{walk.status==='active'?'暂停':'继续'}}
       </button>
-      <button class="primary" data-kind="finish" bindtap="action">
+      <button class="primary" data-kind="finish" bindtap="action" disabled="{{busy}}">
         结束遛狗
       </button>
     </view>
@@ -72,9 +75,11 @@
     <button wx:if="{{share}}" class="share-button" open-type="share">
       发给朋友看位置 ↗
     </button>
+    <view wx:if="{{locationError}}" class="location-error" bindtap="point">{{locationError}} · 点击重试</view>
   </view>
+  <button class="records-button" bindtap="records">查看最近的脚印 ›</button>
   <view class="privacy">
-    🔒 只有你主动打开分享时，朋友才能查看这次遛狗的位置。
+    🔒 只有你主动打开分享时，朋友才能查看位置。保持小程序打开，位置才会持续更新。
   </view>
 </view>
 <tab-bar current="/pages/walk/walk" />