Update app.py

app.py

@@ -51,7 +51,7 @@ def decision(png_file_path, client, lmm: str) -> str:
             'role': 'user', 
             'content': [
                 {"type": "text", "text": user_message},
-                {"type": "image", "image_url": {"url": image_data}}
+                {"type": "image_url", "image_url": {"url": image_data}}
             ]
         }
     ]