Release v0.1.0 - Core Services Complete Phase 1 (30%): - Package structure with contracts and enums - Exception hierarchy - Service Provider and Facade - PHPStan level 8, Pint, Pest - CI/CD GitHub Actions - Complete documentation Phase 2 (50% total): - HashGenerator service (14 tests) - QrGenerator service (10 tests) - XmlBuilder service (14 tests) - CertificateManager service (6 tests) - AeatClient service (8 tests) - 52 tests passing ⚠️ DEVELOPMENT VERSION - NOT FOR PRODUCTION Next: Phase 3 - Models and Persistence