feat(recycle-bin): 实现回收站功能

- 新增回收站管理相关接口和页面
- 实现笔记和分组的软删除、恢复和永久删除功能
- 添加回收站数据展示和操作界面
- 设计回收站功能的数据库表结构和API接口

biji-houdaun/src/main/java/com/test/bijihoudaun/entity/TrashItemVo.java

@@ -0,0 +1,28 @@
+package com.test.bijihoudaun.entity;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.util.Date;
+
+@Data
+@Schema(name = "回收站项目视图对象")
+public class TrashItemVo {
+
+    @Schema(description = "项目ID")
+    private String id;
+
+    @Schema(description = "项目名称（笔记标题或分组名称）")
+    private String title;
+
+    @Schema(description = "项目类型（note 或 group）")
+    private String type;
+
+    @Schema(description = "删除时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
+    private Date deletedAt;
+
+    @Schema(description = "删除者ID")
+    private String deletedBy;
+}