- Added the complete Österreichische Turnierordnung 2026 (ÖTO) under `docs/03_Domain/02_Reference/OETO_Regelwerk/`.
- Covered general provisions, participation requirements, equipment standards, discipline-specific rules, and ethical principles.
- Ensured proper citation formatting throughout the document for reference consistency.
Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>
