fix!: removed .commit() from repository level

repositories/link_codes.py

@@ -1,14 +1,14 @@
 from datetime import datetime
 
 from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
 
 from db.models.link_codes import LinkCode
+from db.session import UnitOfWork
 from schemas.enums import LinkCodeStatus
 
 
 async def create_link_code(
-    session: AsyncSession,
+    uow: UnitOfWork,
     *,
     code: str,
     user_id: int,
@@ -22,20 +22,17 @@ async def create_link_code(
         expires_at=expires_at,
     )
 
-    session.add(link_code)
-    await session.commit()
+    uow.session.add(link_code)
     return link_code
 
 
-async def get_link_code_by_code(session: AsyncSession, code: str) -> LinkCode | None:
+async def get_link_code_by_code(uow: UnitOfWork, code: str) -> LinkCode | None:
     stmt = select(LinkCode).where(LinkCode.code == code)
-    r = await session.execute(stmt)
+    r = await uow.session.execute(stmt)
 
     return r.scalar_one_or_none()
 
 
-async def use_link_code(session: AsyncSession, code: LinkCode) -> LinkCode:
+async def use_link_code(uow: UnitOfWork, code: LinkCode) -> LinkCode:
     code.status = LinkCodeStatus.USED
-    await session.commit()
-
     return code