feat: 字典实时同步和 websocket 重构优化

src/main/java/com/youlai/boot/system/model/dto/UserSessionDTO.java

@@ -0,0 +1,37 @@
+package com.youlai.boot.system.model.dto;
+
+import lombok.Data;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * 用户会话DTO
+ *
+ * @author Ray.Hao
+ * @since 3.0.0
+ */
+@Data
+public class UserSessionDTO {
+
+    /**
+     * 用户名
+     */
+    private String username;
+
+    /**
+     * 用户会话ID集合
+     */
+    private Set<String> sessionIds;
+
+    /**
+     * 最后活动时间
+     */
+    private long lastActiveTime;
+
+    public UserSessionDTO(String username) {
+        this.username = username;
+        this.sessionIds = new HashSet<>();
+        this.lastActiveTime = System.currentTimeMillis();
+    }
+} 

src/main/java/com/youlai/boot/system/model/event/DictEvent.java

@@ -0,0 +1,27 @@
+package com.youlai.boot.system.model.event;
+
+import lombok.Data;
+
+/**
+ * 字典更新事件
+ *
+ * @author Ray.Hao
+ * @since 3.0.0
+ */
+@Data
+public class DictEvent {
+    /**
+     * 字典编码
+     */
+    private String dictCode;
+    
+    /**
+     * 时间戳
+     */
+    private long timestamp;
+
+    public DictEvent(String dictCode) {
+        this.dictCode = dictCode;
+        this.timestamp = System.currentTimeMillis();
+    }
+} 

src/main/java/com/youlai/boot/system/model/form/DictForm.java

@@ -2,6 +2,7 @@ package com.youlai.boot.system.model.form;
 
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotBlank;
 import lombok.Data;
 import lombok.Getter;
 import lombok.Setter;
@@ -26,6 +27,7 @@ public class DictForm {
     private String name;
 
     @Schema(description = "字典编码", example ="gender")
+    @NotBlank(message = "字典编码不能为空")
     private String dictCode;
 
     @Schema(description = "备注")