feat(消息): 添加回复ID字段支持消息回复功能

在Message和MessageDto中添加replyid字段，支持消息回复功能
添加删除所有评论的API端点
重构消息控制器方法顺序
```

```msg
feat(文章): 实现文章浏览量增加功能

添加incrementViewCount方法用于增加文章浏览量
在文章实体中添加likes字段记录点赞数
更新API文档说明新增字段
```

```msg
chore: 移除数据初始化类

注释掉CategoryDataInit和MessageDataInit类
这些初始化功能将由其他方式实现

src/main/java/com/qf/myafterprojecy/pojo/Message.java

@@ -8,22 +8,50 @@ import java.util.Date;
 public class Message {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
+
+    @Column(name = "messageid")
     private Integer messageid;
 
+    @Column(name = "nickname")
     private String nickname;
 
+    @Column(name = "email")
     private String email;
 
-    @Column(columnDefinition = "text")
+    @Column(name = "content", columnDefinition = "text")
     private String content;
 
     @Temporal(TemporalType.TIMESTAMP)
+    @Column(name = "created_at")
     private Date createdAt;
 
+    @Column(name = "parentid")
     private Integer parentid;
 
-    private Integer articleid;
+    @Column(name = "replyid")
+    private Integer replyid;
 
+    @Column(name = "articleid")
+    private Integer articleid;
+    
+    @Column(name = "likes")
+    private Integer likes; // 点赞数
+
+    public Integer getLikes() {
+        return likes;
+    }
+
+    public void setLikes(Integer likes) {
+        this.likes = likes;
+    }
+
+    public Integer getReplyid() {
+        return replyid;
+    }
+
+    public void setReplyid(Integer replyid) {
+        this.replyid = replyid;
+    }
 
     public Integer getMessageid() {
         return messageid;