Products Rendering, removal of deprecated files

services/categories.py

@@ -1,18 +0,0 @@
-from typing import Optional
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from dto.categories import CategoryDTO
-from repositories import CategoriesRepository
-
-
-class CategoryService:
-    def __init__(self, category_repo: CategoriesRepository):
-        self.category_repo = category_repo
-
-    async def get_children(
-        self, session: AsyncSession, parent_id: Optional[int] = None
-    ) -> list[CategoryDTO]:
-        result = await self.category_repo.get_category_by_parent_id(session, parent_id)
-        return [
-            CategoryDTO(x.id, x.name) for x in result
-        ]  # FIXME: Optimization may be required here - O(n)