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.

app/api/deps.py

@@ -1,9 +1,11 @@
 """Reusable FastAPI dependencies."""
+
 from collections.abc import AsyncGenerator
 
 import jwt
 from fastapi import Depends, Header, HTTPException, status
 from fastapi.security import OAuth2PasswordBearer
+from redis.asyncio.client import Redis
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.cache import get_cache_client
@@ -18,9 +20,9 @@ from app.repositories.deal_repo import DealRepository
 from app.repositories.org_repo import OrganizationRepository
 from app.repositories.task_repo import TaskRepository
 from app.repositories.user_repo import UserRepository
+from app.services.activity_service import ActivityService
 from app.services.analytics_service import AnalyticsService
 from app.services.auth_service import AuthService
-from app.services.activity_service import ActivityService
 from app.services.contact_service import ContactService
 from app.services.deal_service import DealService
 from app.services.organization_service import (
@@ -30,7 +32,6 @@ from app.services.organization_service import (
     OrganizationService,
 )
 from app.services.task_service import TaskService
-from redis.asyncio.client import Redis
 
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.api_v1_prefix}/auth/token")
 
@@ -45,7 +46,9 @@ def get_user_repository(session: AsyncSession = Depends(get_db_session)) -> User
     return UserRepository(session=session)
 
 
-def get_organization_repository(session: AsyncSession = Depends(get_db_session)) -> OrganizationRepository:
+def get_organization_repository(
+    session: AsyncSession = Depends(get_db_session),
+) -> OrganizationRepository:
     return OrganizationRepository(session=session)
 
 
@@ -65,7 +68,9 @@ def get_activity_repository(session: AsyncSession = Depends(get_db_session)) ->
     return ActivityRepository(session=session)
 
 
-def get_analytics_repository(session: AsyncSession = Depends(get_db_session)) -> AnalyticsRepository:
+def get_analytics_repository(
+    session: AsyncSession = Depends(get_db_session),
+) -> AnalyticsRepository:
     return AnalyticsRepository(session=session)