feat(frame): add crawlable device directory

[lbb00]

What does this PR do?

The hosted demo has static device pages, but the homepage only exposed them through a JavaScript-driven selector. This adds a static /devices/ directory with one ordinary link per profile, connects it to the homepage, detail pages and sitemap, and gives every detail page a server-rendered profile summary. It also adds a generated GitHub index of all 175 public device URLs, with CI checking that it stays synchronized with the device table.

How was this verified?

• pnpm format:check
• pnpm lint — exits 0; one existing warning remains in packages/frame/src/react/index.tsx.
• pnpm check-types
• pnpm test — 1,197 tests pass.
• pnpm run check:device-pages
• pnpm --filter @devicekit/frame demo:build:pages — generates 177 static pages.
• Two independent Codex Sol review passes, including the JSON-LD relationship between profile pages and the new collection page.

Checklist

• Tests added or updated
• pnpm lint passes with zero warnings — the existing react(refs) warning is unrelated to this change.
• Changeset added for the user-facing frame demo change