feat(订单): 添加退款相关状态和界面支持

在订单API中添加退款状态(13=退款中, 15=已退款, 17=退款失败)
在订单管理页面添加已退款标签页

 /*
  * @Date: 2025-07-03 17:21:45
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-07-31 15:50:33
+ * @LastEditTime: 2025-08-04 15:24:12
  * @FilePath: /jgdl/src/api/orders.js
  * @Description: 文件描述
  */
@@ -23,7 +23,7 @@ const Api = {
  * @param page 页码，从0开始
  * @param page_size 每页数量
  * @param type 列表类型。buy=我买的，sell=我卖的
- * @param status 订单状态（3=待支付, 5=已支付待发货, 7=已取消, 9=已发货/待收货, 11=已收货）
+ * @param status 订单状态（3=待支付, 5=已支付待发货, 7=已取消, 9=已发货/待收货, 11=已收货, 13=退款中, 15=已退款, 17=退款失败）
  * @returns data{ list[{ id, title, total_amount, status, create_time, payment_time, details{ id, vehicle_id, quantity, vehicle{} } }] }
  */
 export const getOrderListAPI = (params) => fn(fetch.get(Api.GET_ORDER_LIST, params));

 <!--
  * @Date: 2022-09-19 14:11:06
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-08-04 15:22:11
+ * @LastEditTime: 2025-08-04 17:46:52
  * @FilePath: /jgdl/src/pages/myOrders/index.vue
  * @Description: 订单管理页面
 -->
@@ -43,6 +43,9 @@
         <view v-if="viewMode === 'buy' || viewMode === 'sell' || viewMode === 'verification'" class="tab-item" :class="{ active: activeTab === 7 }" @click="setActiveTab(7)">
           已取消
         </view>
+        <view v-if="viewMode === 'verification'" class="tab-item" :class="{ active: activeTab === 15 }" @click="setActiveTab(15)">
+          已退款
+        </view>
       </view>
     </nut-sticky>
 
@@ -553,6 +556,7 @@ const filteredOrders = computed(() => {
     if (activeTab.value === 9) return order.status === 9
     if (activeTab.value === 11) return order.status === 11
     if (activeTab.value === 7) return order.status === 7
+    if (activeTab.value === 15) return order.status === 15
     return true
   })
 })