TubeFold landing page

Static site for TubeFold — turn YouTube videos into Markdown notes with your own Claude Code or Codex subscription.

Live at tubefold.github.io (GitHub Pages, no build step).

• index.html — the landing page. Single file, zero dependencies, light/dark via prefers-color-scheme, no external requests (no fonts, no analytics — that's a product claim, keep it true).
• privacy.html — privacy policy for the app + Chrome extension; its "network connections" list must stay in sync with the README table in the App repo.
• Design/content rationale: docs/marketing/LANDING_PAGE_SPEC.md in the App repo.