* Update composer.lock with dependency upgrades and improvements
Updated multiple dependencies in `composer.lock` to their latest versions, including upgrades for Doctrine, PHPUnit, Symfony components, and extended PostgreSQL support.
* Fix sass compile
- Replaced getters/setters with direct property access across entities and repositories.
- Added and configured `martin-georgiev/postgresql-for-doctrine` for PostgreSQL enhancements.
- Updated Doctrine configuration with types, mappings, and JSONB query functions.
- Removed unused `EliminationService` and related YAML configurations.
- Adjusted migrations to align with refactored ORM annotations.
- Added new PHPStan and PHP-CS-Fixer configurations, including stricter rules.
- Introduced `tests/object-manager.php` to improve test environment setup.
Marijn
