feat: add share calendar API

backend/src/v1/schedule_items/repository.py

@@ -10,6 +10,7 @@ from sqlalchemy.exc import SQLAlchemyError
 from core.db.base_repository import BaseRepository
 from core.logging import get_logger
 from models.schedule_items import ScheduleItem
+from models.schedule_subscriptions import ScheduleSubscription
 
 if TYPE_CHECKING:
     from sqlalchemy.ext.asyncio import AsyncSession
@@ -18,6 +19,7 @@ logger = get_logger("v1.schedule_items.repository")
 
 
 class ScheduleItemRepository(Protocol):
+    async def get_by_id(self, entity_id: UUID) -> ScheduleItem | None: ...
     async def get_by_item_id(
         self, item_id: UUID, owner_id: UUID
     ) -> ScheduleItem | None: ...
@@ -31,6 +33,7 @@ class ScheduleItemRepository(Protocol):
     async def list_by_date_range(
         self, owner_id: UUID, start_at: datetime, end_at: datetime
     ) -> list[ScheduleItem]: ...
+    async def create_subscription(self, data: dict) -> ScheduleSubscription: ...
 
 
 class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
@@ -127,3 +130,12 @@ class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
         except SQLAlchemyError:
             logger.exception("Schedule item list failed", owner_id=str(owner_id))
             raise
+
+    async def create_subscription(self, data: dict) -> ScheduleSubscription:
+        sub = ScheduleSubscription(**data)
+        self._session.add(sub)
+        await self._session.flush()
+        return sub
+
+    async def get_by_id(self, entity_id: UUID) -> ScheduleItem | None:
+        return await super().get_by_id(entity_id)