Update app.py

app.py

@@ -38,7 +38,7 @@ def chat_with_bot(message, history):
 
     decoded = tokenizer.decode(outputs[0], skip_special_tokens=True)
     response = decoded[len(prompt):].strip().split("\n")[0]
-    history.append((message, response))
+    history.append([message, response])
     return response, history
 
 # ✅ gr.ChatInterface expects fn(message, history) → (response, updated_history)