Add Ruff for linting and formatting

[Sehat1137]

Summary:

Integrate the Ruff linter and formatter into the project to ensure consistent code style and catch common errors.

1. Add ruff.toml to configure rules
2. Add Ruff to the project's dev dependencies in requirements-dev.txt
3. Update the CI/CD pipeline (e.g., GitHub Actions) to run ruff check

[vldmrdev]

@Sehat1137 Hi, I can take on this task. And for mypy #9 too. I'd also suggest adding pre-commit with the same linters and type checkers. Also, I think CodeQL and dependabot could be useful too.