i365dev/free4chat — reverse-engineered prompt

Build me a simple web app like free4.chat. I want someone to open the site, type a room name and nickname, then instantly join a temporary room with no account or sign up. People in the same room should be able to talk by voice, send text messages with emoji, share images and files with inline previews, and share their screen.

Privacy is important. Don’t save messages or files anywhere, keep them only for the current browser session, and make it clear that closing the tab removes the conversation. Rooms should expire automatically after 2 hours, but reusing a room name should still let people find the same active meeting while it exists.

Add an optional AI helper named Luna that is off by default and only replies when someone mentions @luna. Include basic bot protection with Cloudflare Turnstile and keep it serverless on Cloudflare using RealtimeKit, Workers and KV. Make it clean, mobile friendly and easy to deploy. Look up current docs online if needed.