add basic tests to check imports #4

	name: CI

	on:
	push:
	pull_request:

	jobs:
	tests:
	# Use Ubuntu 22.04 so Python 3.7 is still available
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version: ['3.8', '3.9', '3.10', '3.11']

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install package
	run: \|
	python -m pip install --upgrade pip
	pip install -e .

	- name: Run unit tests (no hardware)
	run: \|
	python -m unittest discover -s Tests/unit -p "test_*.py"

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