工作流读取图片解析失败，说id为空。

功能请求
1

运行失败: 无效的上下文结构: dify_model_identity=‘dify__file’ id=None tenant_id=‘20783cd7-cf97-489b-8984-54e7a4298c69’ type=\u003cFileType.IMAGE: ‘image’\u003e transfer_method=\u003cFileTransferMethod.LOCAL_FILE: ‘local_file’\u003e remote_url=‘/files/01b48a13-b494-45d8-91fe-c029eb419c6d/file-preview?timestamp=1769754463\u0026nonce=0d94123b53c3982b8afaeada49f68b51\u0026sign=FHtxfwy-s0nVB-Ux_dS2m5NaF-IAt9LpTtQAmVI06kQ%3D’ related_id=‘01b48a13-b494-45d8-91fe-c029eb419c6d’ filename=‘木门.png’ extension=‘.png’ mime_type=‘image/png’ size=249831