Update app.py

app.py

@@ -1,8 +1,6 @@
 import streamlit as st
-import random
-import smtplib
-import os
-from email.mime.text import MIMEText
+from auth import generate_otp, create_token, verify_token
+from email_utils import send_otp_email 
 from dotenv import load_dotenv
 from model_api import query_model
 from prompt_builder import build_prompt