dev: add README.md and GitHub Action workflow #1

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python 3.13
	uses: actions/setup-python@v5
	with:
	python-version: '3.13'
	cache: 'poetry'

	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	version: latest
	virtualenvs-create: true
	virtualenvs-in-project: true

	- name: Load cached venv
	id: cached-poetry-dependencies
	uses: actions/cache@v3
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}

	- name: Install dependencies
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
	run: poetry install --no-interaction --no-root

	- name: Run linting
	run: poetry run ruff check .

	- name: Run tests
	run: poetry run pytest -vrA

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