add comment for file url

Tools/tools.py

@@ -178,6 +178,7 @@ def read_image_file(taskID: str) -> dict:
     try:
         # 1. Download the image from URL
         response = requests.get(DEFAULT_File_URL + taskID)
+        print(f"image url {DEFAULT_File_URL + taskID}")
         response.raise_for_status()  # ensure no HTTP error
         content_type = response.headers.get("Content-Type", "")
         # 2. Convert image bytes to base64