rhardian/robinhood-sniper ? reverse-engineered prompt

Build me a TypeScript bot for Robinhood Chain 4663 that watches for new meme coin launches in real time and automatically buys tiny positions, about $1 per trade, when the token passes a set of safety and momentum checks.

I want it to use live chain data plus a backup RPC so it still works if one feed is slow. It should calculate simple GMGN style stats like market cap, liquidity, volume, buy ratio, and holder count, then reject anything that looks risky, like honeypots, bad taxes, or suspicious holder concentration. If it does buy, it should take profit around 15 percent, stop loss around 10 percent, and exit after a timeout if nothing happens. It should also unwrap back to ETH after selling, log every trade and check, and support a dry run mode so I can test safely before using real funds.

Please include a basic wallet setup, env file example, health monitoring, and a way to run it continuously with process management. If you need to, look up the current docs for any chain specific APIs.