refactor(file): 重构文件对象继承基础实体类

- 添加 BaseEntity 继承以统一基础字段管理
- 简化了 SysFileVo 类的代码结构
- 提升了代码复用性和可维护性

klp-system/src/main/java/com/klp/system/domain/vo/SysFileVo.java

@@ -4,6 +4,7 @@ import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
 import com.alibaba.excel.annotation.ExcelProperty;
 import com.klp.common.annotation.ExcelDictFormat;
 import com.klp.common.convert.ExcelDictConvert;
+import com.klp.common.core.domain.BaseEntity;
 import lombok.Data;
 
 
@@ -15,7 +16,7 @@ import lombok.Data;
  */
 @Data
 @ExcelIgnoreUnannotated
-public class SysFileVo {
+public class SysFileVo extends BaseEntity {
 
     private static final long serialVersionUID = 1L;