调整图片尺寸

message_summary/message_summary_dify.py

@@ -1,8 +1,5 @@
 import requests
 import json
-import os
-import uuid
-from datetime import datetime
 
 from message_summary.compress_chat_data import compress_chat_data
 from message_summary.markdown_to_image import convert_md_str_to_image