feat: add middleware class #94

	name: Crypt4GH Middleware Checks

	on:
	pull_request:
	branches: [main]

	jobs:
	lint:
	name: Run linting
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"
	- name: Install poetry
	run: pip install poetry
	- name: Install dependencies
	run: poetry install
	- name: Lint with pylint
	run: poetry run pylint tests/* crypt4gh_middleware/*
	- name: Lint with ruff
	run: poetry run ruff check tests/* crypt4gh_middleware/*
	- name: Type checking with mypy
	run: poetry run mypy crypt4gh_middleware

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