添加部分退款接口

pluss-model-bundle/src/main/java/cn/pluss/platform/entity/MerchantOrder.java

@@ -170,6 +170,9 @@ public class MerchantOrder {
     @TableField(exist = false)
     private Integer userId;
 
+    @TableField(exist = false)
+    private BigDecimal payReturnAmount;
+
     private String mercOrderNo;
 
     private String mercNotifyUrl;