fix: 通用懒加载树形搜索

laws-module-system/src/main/java/com/jero/modules/system/entity/SysDictItem.java

@@ -197,6 +197,13 @@ public class SysDictItem implements TreeNode {
     @JsonProperty("isLeaf")
     private boolean leafFlag;
 
+    /**
+     * 第一级节点
+     */
+    @TableField(exist = false)
+    @ApiModelProperty(value = "第一级节点")
+    private String firstNode;
+
     @Override
     public String obtainTreeNodeId() {
         return id;