add uv support

[timtogan]

No description provided.

[Copilot]

Pull request overview

Adds uv-based dependency management alongside the existing MkDocs documentation build, and documents a uv-based contributor workflow.

Changes:

• Add pyproject.toml + uv.lock to support uv sync for Python dependencies.
• Add a “With uv” contributor page and link it into the MkDocs navigation.
• Add Python tooling niceties (.python-version, expanded .gitignore) for local development.

Reviewed changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
uv.lock	Introduces a uv lockfile for reproducible dependency installs.
pyproject.toml	Defines project metadata and dependencies for uv-based workflows.
mkdocs.yml	Adds nav entry for the new uv contributing guide.
docs/contributing/with-uv.md	New contributor documentation for installing/using uv.
.python-version	Pins a Python version for local tooling.
.gitignore	Ignores common Python build artifacts and .venv.

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[Copilot]

This repository now has two sources of truth for Python dependencies: requirements.txt (used by Read the Docs) and pyproject.toml/uv.lock (used by uv). Without an explicit sync process, these can drift and lead to different builds; consider generating requirements.txt from the lock (or updating RTD to install via uv) to keep environments consistent.

Suggested change

	[tool.uv]
	# This project uses uv as the single source of truth for dependencies.
	# The requirements.txt file used by Read the Docs must be generated from
	# the uv lockfile to avoid drift between environments. Regenerate it with:
	# uv export --format requirements-txt --output requirements.txt