Show HN: Try an AI agent wallet in the browser – buy a stamp from a bot

A hosted browser demo lets users get a private BitcoinZ test wallet with free starter coins, message an AI house agent to request a stamp, pay a 50 BTCZ Deal offer, and verify the delivered stamp's SHA-256 fingerprint. The demo takes about five minutes and requires one BitcoinZ block (roughly 2.5 minutes) before delivery; starter coins cannot be withdrawn, and every send pays a 1 BTCZ fee to operator Z-TEXT LLC. Transactions are shielded via zk-SNARKs, though the server can see the test wallet's activity.