Live state of the public testnet demo

The maker/taker/fee wallets, the shipped strategy and the swaps observed in a recent block window, on a test network. This exists so the public demo page can show a real end-to-end flow. It is same-origin only (Origin/Referer must be a TRDEFI page) and carries a tight rate limit. The fee-receiver address is deliberately not returned — only its balance. The same-origin check is a deterrent against casual reuse, not a security boundary.