refactor(entity): 重构实体类并优化券码生成逻辑

- 移除 BaseEntity 类，将通用字段直接集成到各实体类中
- 更新实体类字段名称，如 createdTime 改为 createTime- 在 PriceVoucherCode 实体中添加生成安全券码的逻辑
- 更新相关服务类中的方法调用，以适应新的字段名称

src/main/java/com/ycwl/basic/pricing/entity/PriceVoucherBatchConfig.java

@@ -1,10 +1,10 @@
 package com.ycwl.basic.pricing.entity;
 
 import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
-import lombok.EqualsAndHashCode;
 
 import java.math.BigDecimal;
 import java.util.Date;
@@ -13,9 +13,8 @@ import java.util.Date;
  * 券码批次配置实体
  */
 @Data
-@EqualsAndHashCode(callSuper = true)
 @TableName("price_voucher_batch_config")
-public class PriceVoucherBatchConfig extends BaseEntity {
+public class PriceVoucherBatchConfig {
     
     @TableId(value = "id", type = IdType.AUTO)
     private Long id;
@@ -65,8 +64,17 @@ public class PriceVoucherBatchConfig extends BaseEntity {
      */
     private Integer status;
     
-    /**
-     * 创建人ID
-     */
+    @TableField("create_time")
+    private Date createTime;
+    
+    @TableField("update_time")
+    private Date updateTime;
+    
     private Long createBy;
+    
+    private Long updateBy;
+    
+    private Integer deleted;
+    
+    private Date deletedAt;
 }