fix(pay): 微信支付退款失败时记录错误信息

- 在退款响应中添加状态信息字段
- 当退款失败时设置并返回具体的错误状态
- 更新订单退款状态时增加对退款失败情况的日志记录

src/main/java/com/ycwl/basic/pay/adapter/WxMpPayAdapter.java

@@ -282,6 +282,7 @@ public class WxMpPayAdapter implements IPayAdapter {
             resp.setRefundNo(refund.getOutRefundNo());
         } else {
             resp.setSuccess(false);
+            resp.setMessage(refund.getStatus().name());
         }
         return resp;
     }

src/main/java/com/ycwl/basic/pay/entity/RefundOrderResponse.java

@@ -6,4 +6,5 @@ import lombok.Data;
 public class RefundOrderResponse {
     private boolean success;
     private String refundNo;
+    private String message;
 }

src/main/java/com/ycwl/basic/service/mobile/impl/WxPayServiceImpl.java

@@ -190,6 +190,8 @@ public class WxPayServiceImpl implements WxPayService {
                 orderUpdateReq.setRefundStatus(OrderStateEnum.REFUNDED.getType());
                 orderUpdateReq.setRefundAt(new Date());
                 orderMapper.update(orderUpdateReq);
+            } else {
+                log.error("[微信支付]refund error: {}", response.getMessage());
             }
         });
         return true;