Update app.py

app.py

@@ -56,7 +56,7 @@ class ChatBot:
                     x1, y1, x2, y2 = map(int, box)
                     draw.rectangle([x1, y1, x2, y2], outline="red", width=3)
                 file_name = secrets.token_hex(10) + ".png"
-                file_path = os.path.join(image_dir, file_name)
+                file_path = os.path.join(base_url, image_dir, file_name)
                 img.save(file_path, format="PNG")
                 return file_path
         except Exception as e: