I want to make my own Telegram bot using node js called bot Grok 2, now her is code "" here is my ddc api "" and here is my bot Token "" when user /start then send first "hii" message to grok, after user and grok will be start convertion, after start user ask any information then send in api and get response show in bot after do like this continue they chat conversation. You must create server.js, package.json and Vercel.json make server.js according vercel soon O deploy in vercel. 

Change server.js code without any web hook start my telegram bot. Now give me full complate updated new code.