Refactor code for improved readability and consistency

- Reformatted function signatures in `organization_service.py` and `task_service.py` for better alignment.
- Updated import statements across multiple files for consistency and organization.
- Enhanced test files by improving formatting and ensuring consistent use of async session factories.
- Added type hints and improved type safety in various service and test files.
- Adjusted `pyproject.toml` to include configuration for isort, mypy, and ruff for better code quality checks.
- Cleaned up unused imports and organized existing ones in several test files.

tests/services/test_task_service.py

@@ -1,16 +1,13 @@
 """Unit tests for TaskService."""
+
 from __future__ import annotations
 
+import uuid
 from collections.abc import AsyncGenerator
 from datetime import datetime, timedelta, timezone
-import uuid
 
 import pytest
 import pytest_asyncio
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
-from sqlalchemy.pool import StaticPool
-
 from app.models.activity import Activity, ActivityType
 from app.models.base import Base
 from app.models.contact import Contact
@@ -28,6 +25,9 @@ from app.services.task_service import (
     TaskService,
     TaskUpdateData,
 )
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.pool import StaticPool
 
 
 @pytest_asyncio.fixture()
@@ -189,7 +189,9 @@ async def test_member_cannot_update_foreign_task(session: AsyncSession) -> None:
         user_id=member.id,
         role=OrganizationRole.MEMBER,
     )
-    member_context = OrganizationContext(organization=context_owner.organization, membership=membership)
+    member_context = OrganizationContext(
+        organization=context_owner.organization, membership=membership
+    )
 
     with pytest.raises(TaskForbiddenError):
         await service.update_task(