fix: 账单接口查询

wfc-modules/wfc-user/src/main/java/org/wfc/user/domain/vo/UBillUserVo.java

@@ -4,6 +4,7 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import java.math.BigDecimal;
+import java.util.Date;
 
 /**
  * @author: cyc
@@ -31,5 +32,5 @@ public class UBillUserVo {
     private Integer status;
 
     @Schema(description = "创建时间")
-    private BigDecimal createTime;
+    private Date createTime;
 }