Fix gradio errors

app.py

@@ -97,9 +97,7 @@ def user(user_message, image_data, history: list):
                 {"type": "text", "text": text_content},
                 {
                     "type": "image",
-                    "path": tmp_path,
-                    "alt_text": "User uploaded image",
-                    "_base64": f"data:image/jpeg;base64,{img_base64}",  # Store base64 for model
+                    "image": tmp_path,  # Use 'image' key instead of 'path'
                 },
             ],
         })