- Introduced addMiniChampionship method in tournamentService to create tournaments with predefined classes for mini championships.
- Updated getTournaments method to filter tournaments based on type, including support for mini championships.
- Enhanced TournamentClass model to include maxBirthYear for age class restrictions.
- Modified tournamentController and tournamentRoutes to support new mini championship endpoint.
- Updated frontend components to manage mini championship creation and display, including localization for new terms.