Update app.py

app.py

@@ -85,5 +85,5 @@ if prompt := st.chat_input():
         assistant_message_placeholder.write_stream(response_stream)
 
     # Append the final assistant's response to the chat history
-    st.session_state["messages"].append({"role": "assistant", "content": bot_response})
+    st.session_state["messages"].append({"role": "assistant", "content": response_stream})