v0.3.0

What's Changed

• ci: live demo on GitHub Pages by @Ponchia in #4
• fix(demo,ci): Lighthouse 100s + deterministic a11y scan by @Ponchia in #5
• test(ci): broaden the e2e gate (best-practice a11y both themes, cross-engine, modes) by @Ponchia in #6
• feat: content-site layer (ui-* shell, ui-quote, Shiki Nothing theme) by @Ponchia in #7
• 0.3.0 — multi-review hardening (contract, a11y, legacy removal, tooling) by @Ponchia in #8

Full Changelog: v0.2.2...v0.3.0