perf(website): prerender and modernize site runtime

[100gle]

What changed

• Prerender the landing pages and remove the unused Astro server adapter, session binding, and Worker runtime.
• Modernize Astro components with typed props, static Lucide imports, Astro's Code component, Zod 4 APIs, shared reveal behavior, and Motion 13 APIs.
• Fix locale-aware canonical links, theme resolution, translated UI, reduced-motion behavior, keyboard/focus handling, and component accessibility issues found during the full audit.
• Add a generated GitHub data snapshot as a prerequisite for both type-checking and builds so clean checkouts are reproducible.

Why

The site no longer depends on request-time data. Static output removes approximately 15 MiB of server code and the Cloudflare KV binding while preserving the current routes and content.

Verification

• Clean-checkout pnpm install --frozen-lockfile
• Clean-checkout pnpm check — 0 diagnostics
• pnpm build — 79 static pages
• pnpm exec wrangler deploy --dry-run — static assets, no runtime bindings

Stack

2 of 4. Depends on #16. Next: #18

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Project	Deployment	Actions	Updated (UTC)
bub	Ready	Preview	Aug 12, 2026 3:47pm