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/api/v1/test_organizations.py

@@ -1,16 +1,13 @@
 """API tests for organization endpoints."""
+
 from __future__ import annotations
 
+from collections.abc import AsyncGenerator, Sequence
 from datetime import timedelta
-from typing import AsyncGenerator, Sequence, cast
+from typing import cast
 
 import pytest
 import pytest_asyncio
-from httpx import ASGITransport, AsyncClient
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
-from sqlalchemy.schema import Table
-
 from app.api.deps import get_db_session
 from app.core.security import jwt_service
 from app.main import create_app
@@ -18,6 +15,10 @@ from app.models import Base
 from app.models.organization import Organization
 from app.models.organization_member import OrganizationMember, OrganizationRole
 from app.models.user import User
+from httpx import ASGITransport, AsyncClient
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.schema import Table
 
 
 @pytest_asyncio.fixture()
@@ -55,10 +56,13 @@ async def client(
 
 @pytest.mark.asyncio
 async def test_list_user_organizations_returns_memberships(
-    session_factory: async_sessionmaker[AsyncSession], client: AsyncClient
+    session_factory: async_sessionmaker[AsyncSession],
+    client: AsyncClient,
 ) -> None:
     async with session_factory() as session:
-        user = User(email="owner@example.com", hashed_password="hashed", name="Owner", is_active=True)
+        user = User(
+            email="owner@example.com", hashed_password="hashed", name="Owner", is_active=True
+        )
         session.add(user)
         await session.flush()
 
@@ -110,8 +114,12 @@ async def test_owner_can_add_member_to_organization(
     client: AsyncClient,
 ) -> None:
     async with session_factory() as session:
-        owner = User(email="owner-add@example.com", hashed_password="hashed", name="Owner", is_active=True)
-        invitee = User(email="new-member@example.com", hashed_password="hashed", name="Member", is_active=True)
+        owner = User(
+            email="owner-add@example.com", hashed_password="hashed", name="Owner", is_active=True
+        )
+        invitee = User(
+            email="new-member@example.com", hashed_password="hashed", name="Member", is_active=True
+        )
         session.add_all([owner, invitee])
         await session.flush()
 
@@ -153,7 +161,7 @@ async def test_owner_can_add_member_to_organization(
             select(OrganizationMember).where(
                 OrganizationMember.organization_id == organization.id,
                 OrganizationMember.user_id == invitee.id,
-            )
+            ),
         )
         assert new_membership is not None
         assert new_membership.role == OrganizationRole.MANAGER
@@ -165,7 +173,12 @@ async def test_add_member_requires_existing_user(
     client: AsyncClient,
 ) -> None:
     async with session_factory() as session:
-        owner = User(email="owner-missing@example.com", hashed_password="hashed", name="Owner", is_active=True)
+        owner = User(
+            email="owner-missing@example.com",
+            hashed_password="hashed",
+            name="Owner",
+            is_active=True,
+        )
         session.add(owner)
         await session.flush()
 
@@ -206,8 +219,12 @@ async def test_member_role_cannot_add_users(
     client: AsyncClient,
 ) -> None:
     async with session_factory() as session:
-        member_user = User(email="member@example.com", hashed_password="hashed", name="Member", is_active=True)
-        invitee = User(email="invitee@example.com", hashed_password="hashed", name="Invitee", is_active=True)
+        member_user = User(
+            email="member@example.com", hashed_password="hashed", name="Member", is_active=True
+        )
+        invitee = User(
+            email="invitee@example.com", hashed_password="hashed", name="Invitee", is_active=True
+        )
         session.add_all([member_user, invitee])
         await session.flush()
 
@@ -248,8 +265,12 @@ async def test_cannot_add_duplicate_member(
     client: AsyncClient,
 ) -> None:
     async with session_factory() as session:
-        owner = User(email="dup-owner@example.com", hashed_password="hashed", name="Owner", is_active=True)
-        invitee = User(email="dup-member@example.com", hashed_password="hashed", name="Invitee", is_active=True)
+        owner = User(
+            email="dup-owner@example.com", hashed_password="hashed", name="Owner", is_active=True
+        )
+        invitee = User(
+            email="dup-member@example.com", hashed_password="hashed", name="Invitee", is_active=True
+        )
         session.add_all([owner, invitee])
         await session.flush()