Replace Arc logo/favicon with Fabro isometric symbol, update hero tagline
to "dark software factory", add install command, and rewrite all sections
to match current README and docs: use cases, key features (workflow graphs,
human-in-the-loop, multi-model routing, cloud sandboxes, git checkpointing,
retros), workflow-as-code example, CLI showcase, and sandbox section.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Sets up Tailwind v4 via @tailwindcss/vite, adds the full brand palette
(teal, navy, ice, mint, amber, coral) as custom theme tokens, and builds
a complete homepage with hero, feature grid, code examples, verification
section, multi-model section, observability, "Why Arc", and CTAs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
