init local code

src/main/java/com/yunhai/cms/entity/CmsLink.java

@@ -0,0 +1,48 @@
+package com.yunhai.cms.entity;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Index;
+import javax.persistence.Table;
+
+/**
+ * CMS 友情链接（页脚/首页分组成员，方案 §5.1 表6）。
+ * 分组即旧 linkCategory：上级部门/兄弟院校/合作单位…，group_name 字符串直接分组。
+ */
+@Getter
+@Setter
+@Entity
+@Table(name = "cms_link", indexes = @Index(name = "idx_link", columnList = "site_id, group_name, sort_no"))
+public class CmsLink extends BaseEntity {
+
+    /** 所属站点 */
+    @Column(name = "site_id", nullable = false)
+    private Integer siteId;
+
+    /** 分组（上级部门/兄弟院校/合作单位…） */
+    @Column(name = "group_name", nullable = false, length = 64)
+    private String groupName = "default";
+
+    /** 链接名称 */
+    @Column(name = "name", nullable = false, length = 128)
+    private String name;
+
+    /** Logo URL（可选，文字链可空） */
+    @Column(name = "logo_url", length = 500)
+    private String logoUrl;
+
+    /** 链接地址 */
+    @Column(name = "link_url", nullable = false, length = 500)
+    private String linkUrl;
+
+    /** 组内排序（升序） */
+    @Column(name = "sort_no", nullable = false)
+    private Integer sortNo = 0;
+
+    /** 状态：0=隐藏 1=显示 */
+    @Column(name = "status", nullable = false)
+    private Integer status = 1;
+}