sirvanjafari/sirvan-bot_tel ? reverse-engineered prompt

Build me a simple Telegram bot in Python that can run reliably on a free hosting setup and stay awake with a small keep alive web server.

I want the bot to respond to basic messages, handle commands cleanly, and be easy to extend later with more features. Make sure it starts from one main file, and include whatever is needed so it can keep running without timing out on platforms like Replit or similar. If you need to check current docs for the best way to wire up the Telegram bot and the keep alive part, go ahead and do that.

Please keep the code straightforward, well organized, and ready to run after I add my bot token. If there are any setup steps or environment variables I need, make them simple and obvious.