📝 docs(rules): update comment for relations option in generic crud

- add note that relations option supports nested associations like ['relatedEntity.client']

.roo/rules/12-generic-crud.md

@@ -73,7 +73,7 @@ const yourEntityRoutes = createCrudRoutes({
   getSchema: YourEntitySchema,
   listSchema: YourEntitySchema,
   searchFields: ['name', 'description'], // 可选，指定搜索字段
-  relations: ['relatedEntity'], // 可选，指定关联查询关系
+  relations: ['relatedEntity'], // 可选，指定关联查询关系（支持嵌套关联，如 ['relatedEntity.client']）
   middleware: [authMiddleware] // 可选，添加中间件
 });