Initial commit

backend/app/repositories/vacation_days_repository.py

@@ -0,0 +1,17 @@
+"""Abstract repository interface for VacationDays.
+
+Adds entity-specific queries on top of the generic CRUD contract. Concrete
+implementations live in app/repositories_impl/<backend>/.
+"""
+
+from abc import abstractmethod
+from uuid import UUID
+
+from app.entities.vacation_days import VacationDays
+from app.repositories.base import Repository
+
+
+class VacationDaysRepository(Repository[VacationDays]):
+    @abstractmethod
+    async def get_by_parent_year(self, personal_data_uuid: UUID, year: int) -> VacationDays | None:
+        """Return the entry for a given parent + year (UNIQUE), or None."""