c80fd4ab4b
- Add purchase screen with real Stripe Checkout integration - Add kit activation screen with dev mode notice - Remove mock OTP mode - only serter2069@gmail.com bypasses OTP - Fix OTP retry - show error without redirecting to email screen - Update tab navigation: Dashboard, Chat, Profile (hide Voice) - Update Brevo sender email to daterabbit.com domain 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>