SAKTHI-JENA/Auto-Reaction-Bot — reverse-engineered prompt

Build me a simple Telegram auto reaction bot that I can deploy on Cloudflare Workers. I want it to automatically react to new messages in channels, groups, and private chats, with a customizable list of emojis so it can pick from reactions I set. It should work across multiple chats, let me exclude certain chat IDs if I do not want reactions there, and stay lightweight and fast.

Please make the setup easy for someone who is not super technical. I need clear environment settings for the bot token, bot username, emoji list, and optional restricted chats. Also include the webhook setup so once I deploy it, I can connect the bot to Telegram and have it start reacting right away.

If there is already starter config in the project, use that and finish the missing pieces cleanly. A short README with deploy steps for Cloudflare and a manual local deploy option would be great. If anything changed, look up the latest Telegram Bot API and Cloudflare Worker docs online.