Replace a hosted builder

Website.md is useful when the site is simple enough to become source files, Markdown content, local previews, and a deploy pipeline.

1. Inventory current URLs.
2. Draft WEBSITE.md, DESIGN.md, COPY.md, and SEO.md.
3. Rebuild the site static-first.
4. Preserve URLs or create redirects.
5. Run build, link, metadata, and mobile checks.

Do not migrate forms, analytics, domains, or payments without explicit approval.