Add one page to the existing Zero To One ($ZTO) site at the path /buy/ (the file buy/index.html in the published output), so that https://zto.sites.imd.fun/buy/ serves it. Keep the look, the wording and every other page and section exactly as they are; add a small "Buy" link in the existing navigation that goes to /buy/.

The /buy/ page is an X (Twitter) "player card" landing page. It MUST be a plain static HTML file that is present as-is in the build output (copy it from the public folder; do not make it a client-side route), because X's crawler fetches the URL without running JavaScript and reads these tags out of the raw HTML. Its must contain exactly these tags, with these exact values:

The page body, in the site's own style (same fonts, colours and header as the home page): a heading "Buy $ZTO", one line "ETH to IMD to ZTO in one Uniswap v4 transaction. No backend, nothing custodial. Use at your own risk.", then the buy widget embedded as an iframe: , centred, and under it a plain link "Open the buy page in a new tab" to https://inverted0888.github.io/zto/ with target="_blank" rel="noopener" for browsers that block frames. Nothing else: no wallet code of its own, no scripts loaded from other hosts, no analytics.

The iframe URL and the twitter:player URL above are the widget's real home and must be kept exactly as written (do not rehost or rewrite them). Check before delivering that a fetch of /buy/ in the published build returns the HTML with all of the tags above in it. Rebuild and republish the site at the same address.