feat(upload): 为上传回调数据添加 call_back_key 字段

- 在回调数据中增加 call_back_key 字段，用于标识回调来源
- 该字段的值从任务对象中获取，如果不存在则默认为空字符串

service/upload_image_and_video.py

@@ -260,7 +260,8 @@ async def uploadImageAndVideo(task: dict = None):
         "images": image_dict,
         "description": description_dict,
         "video_list": video_dict,
-        "error_msg": error_msg
+        "error_msg": error_msg,
+        "call_back_key": task.get('call_back_key', ""),
         # "type": 2
     }
     callback_str = json.dumps(callback_data)