Port to uv

[paddyroddy]

Switch from standard Python pip to uv. Need to also update the composite actions.

[Copilot]

Pull request overview

This PR migrates the project from using standard Python pip/tox for dependency management to using uv, a faster Python package installer and resolver. The changes streamline the development workflow by consolidating testing tools and updating GitHub Actions workflows.

Key Changes

• Removed tox configuration and moved pytest-cov to dev dependencies
• Updated GitHub Actions workflows to use uv instead of pip/tox
• Updated pre-commit hooks to a newer version that supports uv

Reviewed changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pyproject.toml	Removed tox configuration and related overrides; cleaned up dev dependencies by removing redundant tools and adding pytest-cov
README.md	Updated installation instructions to use pip sync instead of pip install -e .
.pre-commit-config.yaml	Updated pre-commit hooks version from v0.338.0 to v0.344.0
.github/workflows/test.yaml	Switched from tox composite action to uv composite action; simplified cache path configuration
.github/workflows/examples.yaml	Replaced setup-python with setup-uv; updated commands to use uv sync and uv run
.github/workflows/deploy.yaml	Replaced setup-python with setup-uv; updated build commands to use uv

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