Switch project tooling from Poetry to uv

[tommyjcarpenter]

This swaps the project's packaging and dev tooling from Poetry to uv (already installed on all my machines). The package itself is unchanged; this is purely build/dev tooling plus the docs and CI that drive it.

Changes:

• pyproject.toml: rewritten from [tool.poetry] to PEP 621 [project], with [project.scripts] for the runboot entry point, a PEP 735 [dependency-groups] dev group holding ruff==0.15.12, and a hatchling build backend. Version bumped to 1.3.1.
• Removed poetry.lock and poetry.toml; added a committed uv.lock. uv creates the in-project .venv by default, so the old virtualenvs.in-project pin in poetry.toml is no longer needed.
• Makefile: every target now runs through uv run/uv sync. uv run resolves the project venv on every platform, so the OS-specific .venv/Scripts vs .venv/bin interpreter-path detection is gone.
• .github/workflows/{lint,test,schema}.yml: converted from setup-python + pip install to astral-sh/setup-uv@v5 + uv sync + uv run. The poetry.lock path filter in test.yml is now uv.lock.
• README.md: prerequisites now list uv; the Install/Running section uses uv sync then uv run runboot --loctype ....
• Consistency: the "rust/cargo, go, poetry" toolchain example in boot.py, utils.py, and schema.py now says uv, and the stale Poetry comment in tox.ini is dropped.
• Changelog.md: 1.3.1 entry for the tooling switch.

Verified make ci (ruff clean, 18 tests pass, sample_config.json valid) and uv run runboot --help locally.

[Copilot]

Pull request overview

This PR migrates the project’s Python packaging / developer workflow from Poetry to uv, updating project metadata to PEP 621 and aligning local + CI commands around uv sync / uv run.

Changes:

• Replace Poetry-specific project metadata with PEP 621 [project], add [dependency-groups] for dev tooling, and switch build backend to hatchling.
• Introduce a committed uv.lock, remove poetry.lock / poetry.toml, and update CI workflows + Makefile targets to use uv.
• Update docs and in-code references mentioning Poetry to now reference uv, and add a changelog entry for 1.3.1.

Reviewed changes

Copilot reviewed 12 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pyproject.toml	Migrates to PEP 621 metadata, adds dependency groups, switches build backend to hatchling, bumps version.
uv.lock	Adds uv lockfile for reproducible installs/resolution.
poetry.lock	Removes Poetry lockfile now that uv.lock is the source of truth.
poetry.toml	Removes Poetry virtualenv config (uv uses in-project venv by default).
Makefile	Rewrites dev/test/lint/schema targets to run through uv sync / uv run.
.github/workflows/lint.yml	Uses setup-uv + uv sync + uv run ruff … instead of setup-python + pip install.
.github/workflows/test.yml	Uses setup-uv + uv sync + uv run python -m unittest …; updates path filters to uv.lock.
.github/workflows/schema.yml	Uses setup-uv + uv sync + uv run python … for schema validation.
README.md	Updates prerequisites and install/run instructions from Poetry to uv.
tox.ini	Removes stale Poetry-related comment (and adjusts comment text).
Changelog.md	Adds 1.3.1 entry documenting the tooling switch.
bootstrap/boot.py	Updates documentation text referencing Poetry to uv.
bootstrap/utils.py	Updates docstring referencing Poetry to uv.
bootstrap/schema.py	Updates schema description string referencing Poetry to uv.

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 14 changed files in this pull request and generated 4 comments.