feat: add static marketing site

[satyaborg]

Summary

A minimal single-page static marketing site for the devloop CLI, living under site/ and deployable to Cloudflare Pages. It mimics the code.storage monochrome teletype aesthetic, uses the CLI's own ASCII logo, and a violet accent (#af87ff) matching the TUI brand color (ANSI 141).

What's included

• Static build, no runtime deps — Tailwind v4 compiled to static CSS via the standalone CLI (no Play CDN). Output is plain HTML + CSS + woff2.
• Self-hosted font — IBM Plex Mono from site/fonts/ (OFL, weights 400 + 700), used across the whole page.
• Single centered column layout: header, ASCII logo, tagline, one-line install (curl -fsSL https://devloop.sh/install | bash), a video placeholder for a future demo, then the README-style sections.
• Click-to-copy install and quick-start code blocks (cursor pointer, corner copy icon, checkmark on copy).
• All copy is truthful to the CLI (v0.2.0, real dependencies and commands); no fabricated metrics.

Structure

site/
  index.html      source page
  src/input.css   tailwind entry + theme tokens + @font-face
  build.mjs       build script (tailwind compile + copy html/fonts)
  fonts/          IBM Plex Mono woff2 (400, 700)

dist/ and node_modules/ are gitignored.

Deploy

Full instructions in site/README.md. Short version for Cloudflare Pages (Git integration):

• Root directory: site
• Build command: pnpm build
• Build output directory: dist
• Production branch: main

Then add devloop.sh as a custom domain. Note: https://devloop.sh/install must serve the install script for the on-page command to work — see the README for a _redirects approach until the real installer is published.

Test evidence

• pnpm build produces dist/{index.html,styles.css,fonts/}.
• Verified live in-browser (Chrome) at desktop and mobile widths: layout, click-to-copy (clipboard write + checkmark), font loading, and the video placeholder all render correctly.