refactor: repository create mixin

repositories/board.py

@@ -5,11 +5,17 @@ from sqlalchemy.orm import selectinload
 
 from models import Board
 from repositories.base import BaseRepository
-from repositories.mixins import RepDeleteMixin
+from repositories.mixins import RepDeleteMixin, RepCreateMixin
 from schemas.board import UpdateBoardSchema, CreateBoardSchema
 
 
-class BoardRepository(BaseRepository, RepDeleteMixin[Board]):
+class BoardRepository(
+    BaseRepository,
+    RepDeleteMixin[Board],
+    RepCreateMixin[Board, CreateBoardSchema],
+):
+    entity_class = Board
+
     async def get_all(self, project_id: int) -> list[Board]:
         stmt = (
             select(Board)
@@ -28,13 +34,6 @@ class BoardRepository(BaseRepository, RepDeleteMixin[Board]):
         result = await self.session.execute(stmt)
         return result.scalar_one_or_none()
 
-    async def create(self, data: CreateBoardSchema) -> Board:
-        board = Board(**data.model_dump())
-        self.session.add(board)
-        await self.session.commit()
-        await self.session.refresh(board)
-        return board
-
     async def update(self, board: Board, data: UpdateBoardSchema) -> Board:
         board.lexorank = data.lexorank if data.lexorank else board.lexorank
         board.name = data.name if data.name else board.name