- Create /home route with SEO metadata and JSON-LD structured data
- Add hero section with dual CTAs (sign-up and PWA install)
- Add features section showcasing dual tracking, health timeline, achievements, savings
- Add animated phone demo with rotating screens (auto-advance, pause on hover)
- Add final CTA section and footer with affiliate disclosure
- Extract usePWAInstall hook for reusable PWA install logic
- Enhance theme-context with system preference auto-detection
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implement theme context provider with localStorage persistence and add
toggle button to header. Update Dashboard, StatsCard, QuitPlanCard,
SubstanceTrackingPage, and UsageCalendar components with theme-aware
gradients and colors. Also add daily inspirational quotes to calendar
and fix usage prompt to only show once per day.
