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/core/middleware/cache_monitor.py

@@ -1,11 +1,12 @@
 """Middleware that logs cache availability transitions."""
+
 from __future__ import annotations
 
 import logging
-from starlette.types import ASGIApp, Receive, Scope, Send
 
 from app.core.cache import cache_manager
 from app.core.config import settings
+from starlette.types import ASGIApp, Receive, Scope, Send
 
 logger = logging.getLogger(__name__)