OneBot: Leantime 改造版源码（BOM/Univer 表格/AI 接管/品牌替换等）

app/Core/WorkStructure/Models/RelationshipDefinition.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Leantime\Core\WorkStructure\Models;
+
+/**
+ * RelationshipDefinition model — defines intra-structure relationships
+ * (e.g., "task belongs_to milestone").
+ */
+class RelationshipDefinition
+{
+    public ?int $id = null;
+
+    public int $structureId = 0;
+
+    public int $fromElementId = 0;
+
+    public int $toElementId = 0;
+
+    public string $relationshipType = '';
+
+    public string $description = '';
+
+    public ?string $meta = null;
+}