feat: 仅特约商家可更换打手，后台可开关

orders/views/admin.py

@@ -1785,12 +1785,23 @@ class ZxsjghdsView(APIView):
         except AttributeError:
             return Response({'code': 1, 'msg': '用户认证失败'}, status=status.HTTP_401_UNAUTHORIZED)
 
-        # ========== 2. 提取订单ID ==========
+        # ========== 2. 仅特约商家可更换打手 ==========
+        try:
+            shop_profile = UserShangjia.query.get(user__UserUID=yonghuid)
+        except UserShangjia.DoesNotExist:
+            return Response({'code': 3, 'msg': '商家信息不存在'}, status=status.HTTP_403_FORBIDDEN)
+        if not bool(getattr(shop_profile, 'is_teyue_shangjia', False)):
+            return Response(
+                {'code': 403, 'msg': '仅特约商家可更换打手，请申请退款或结算'},
+                status=status.HTTP_403_FORBIDDEN,
+            )
+
+        # ========== 3. 提取订单ID ==========
         dingdan_id = str(request.data.get('OrderID') or request.data.get('dingdan_id') or '').strip()
         if not dingdan_id:
             return Response({'code': 2, 'msg': '订单ID不能为空'}, status=status.HTTP_400_BAD_REQUEST)
 
-        # ========== 3. 查询订单并校验权限 ==========
+        # ========== 4. 查询订单并校验权限 ==========
         try:
             # 关联查询商家扩展表，确保当前商家是该订单的发布者
             shangjia_kuozhan = MerchantOrderExt.query.select_related('Order').get(
@@ -1802,7 +1813,7 @@ class ZxsjghdsView(APIView):
 
         old_order = shangjia_kuozhan.Order
 
-        # ========== 4. 状态校验（仅允许进行中或结算中） ==========
+        # ========== 5. 状态校验（仅允许进行中或结算中） ==========
         if old_order.Status not in [2, 8]:
             return Response({'code': 4, 'msg': '当前订单状态不允许更换打手'}, status=status.HTTP_400_BAD_REQUEST)