Changelog
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v1.0.0 — Public launch
- Canvas spin wheel with cryptographically secure (CSPRNG) randomness via crypto.getRandomValues + rejection sampling.
- Public /fairness page running 100,000-spin chi-square test live in your browser.
- Multi-winner mode (1-50 winners per spin).
- Weighted entries with *N syntax.
- 5 themes (Light, Dark, Classroom, Rainbow, Neon).
- Save & shareable URL (state encoded in URL hash).
- QR code share, recents in localStorage.
- Embeddable iframe widget at /embed.
- Quick presets (1-10, 1-100, A-Z, days, months, yes/no, dice, coin).
- PWA: installable, offline, fullscreen, vibration.
- 21 SEO landing pages with structured data (FAQPage, HowTo, BreadcrumbList).
- WCAG 2.2 AA accessibility: keyboard, screen-reader labels, reduced-motion, high-contrast Classroom theme.