- Logged additional ideas in `Chat-Verlauf-Gemini_2026-04-07.md` regarding visualizing hierarchy, inheritance, and class structure.
- Documented discussion on reevaluating "Dom..." class prefixes and planning for implementation steps.
- Standardized section headers in `Chat-Verlauf-Gemini_2026-04-07.md` for better clarity.
- Adjusted markdown formatting for participant labels ("Ich", "Gemini") to ensure consistent separation and readability.
- Leveraged markdown lists to enhance the readability of ÖTO § 3 guidelines and constraints.
- Resolved minor inconsistencies in indentation to ensure visual alignment across all sections.
- **Domain Enhancements:**
- Introduced `TurnierNummer` (mandatory, 5 digits) field in `DomTurnier` to establish unique tournament identification.
- Added `TeilnehmerKreisE` enum representing participation constraints defined in ÖTO § 3 (e.g., J, P, H).
- Extended `DomTurnier` model with `einschraenkungen` field to store applicable participant restrictions.
- **Infrastructure Updates:**
- Updated `TurnierTable` to include `turnier_nummer` (varchar) and `einschraenkungen` (text/JSON).
- Created Flyway migration to add new columns to `turniere` table and backfill existing data.
- Enhanced repository methods (`TurnierRepositoryImpl`) to handle the new fields.
- **Validation and API Expansion:**
- Added validation for mandatory 5-digit format of `TurnierNummer` and ensured `einschraenkungen` values conform to the ÖTO spec.
- Updated relevant APIs (`CreateTurnierUseCase`, `TurniereController`) to accept and process new fields.
- **Documentation:**
- Updated the glossary in `Ubiquitous_Language.md` to include new concepts (`TurnierNummer` and participation constraints).
This enhancement lays the groundwork for ÖTO-compliant tournament management with precise scope and constraint controls.
