Implement CI/CD Pipeline

[olivmath]

Description:

Set up a CI/CD pipeline to automate testing and deployment. CI should run tests on Python versions 3.8-3.13, and CD should automatically deploy to PyPI upon a successful build.

Important

Must be support Python: 3.8, 3.9, 3.10, 3.11, 3.12, 3.13

Tasks:

• Configure GitHub Actions (or other CI tool) to run tests on Python 3.8-3.13
• Integrate pytest and coverage reporting
• Enforce style checks with black and pylint
• Set up automatic deployment to PyPI when merging into main
• Add a publish workflow with poetry publish