main主干首次提交，包含用户认证模块

src/main/java/com/labelsys/backend/entity/SysMenu.java

@@ -0,0 +1,28 @@
+package com.labelsys.backend.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import java.time.LocalDateTime;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@TableName("sys_menu")
+public class SysMenu {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long companyId;
+    private String permissionCode;
+    private String menuCode;
+    private String menuName;
+    private String path;
+    private Integer sortOrder;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}