Release v1.2.0 - OTP Email Verification for Simple Unblock Mode

Features:
- Two-step OTP authentication flow
- Email ownership verification (95%+ bot elimination)
- IP binding security
- Visual progress indicator
- Warmup migrations for pattern analysis (ip_reputation, email_reputation, abuse_incidents)
- Mobile-optimized OTP input
- Bilingual support (EN/ES)

Security:
- Email verification prevents bot submissions
- IP binding prevents OTP relay attacks
- Session-based state management
- Honeypot + OTP dual-layer protection

Quality:
- 319 tests passing (1097 assertions)
- PHPStan: 0 errors (level max)
- Pint: All files formatted
- Code coverage: >90%

Breaking Changes: MINOR
- SimpleUnblockForm API changed (submit → sendOtp/verifyOtp)