Add pyproject.toml for dev dependency management

[jbampton]

I installed the dev group with:

uv pip install -r pyproject.toml --group dev

Added the Python package pre-commit as the first dev dependency

https://pypi.org/project/pre-commit/

Also added a .python-version file set to Python 3.13

Astral builds high-performance developer tools for the Python ecosystem: Ruff, ty, and uv, an extremely fast Python package manager, written in Rust.

https://astral.sh/

https://docs.astral.sh/uv/getting-started/installation/#installation-methods

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[lprimak]

We do not require python in Shiro, nor do we need to manage Python dependencies.