fix:转账最小余额改为50元

pjcloud-hardware/pjcloud-hardware-api/src/main/java/com/bsd/pjcloud/hard/api/dto/order/HardAdminRefundDto.java

@@ -22,7 +22,8 @@ public class HardAdminRefundDto {
     @Schema(description = "相关描述")
     private String applyDescription;
 
-    @Schema(description="补充凭证图片")
+    @Schema(description = "补充凭证图片")
+    @NotNull(message = "补充凭证图片不能为空")
     private String applyPicUrls;
 
 }