Fix/pyproject dependencies

[MashrafeeAryan]

Summary

This PR improves the project's maintainability, readability, and development workflow.

Changes

• Applied Ruff formatting across the project and test suite.
• Added and refined inline comments to improve code readability.
• Updated project dependencies.
• Updated the supported Python version.
• Added .ruff_cache/ to .gitignore.
• Improved project configuration and command handling.

Testing

• ✅ Ran the full test suite with pytest.
• ✅ Verified the package builds successfully using python -m build.

Notes

These changes primarily focus on code quality, packaging, and developer experience. No major changes to the core functionality of RunOnGPU are intended.