添加部门后，新增知识库添加部门id、

api/services/dataset_service.py

@@ -1864,6 +1864,7 @@ class DocumentService:
             embedding_model_provider=knowledge_config.embedding_model_provider,
             collection_binding_id=dataset_collection_binding_id,
             retrieval_model=retrieval_model.model_dump() if retrieval_model else None,
+            dept_id=account.dept_id,
         )
 
         db.session.add(dataset)  # type: ignore