chore: Add dependency lockfile for reproducible builds (#61) #3

	name: Dependency Audit

	on:
	pull_request:
	paths:
	- "requirements.txt"
	- "requirements.lock"
	push:
	branches: [main]
	paths:
	- "requirements.txt"
	- "requirements.lock"

	jobs:
	audit:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: Install pip-audit
	run: pip install pip-audit

	- name: Audit pinned dependencies
	run: \|
	if [ -f requirements.lock ]; then
	echo "Auditing requirements.lock (pinned)..."
	pip-audit -r requirements.lock --desc on
	else
	echo "::warning::No requirements.lock found — auditing requirements.txt (unpinned)"
	pip-audit -r requirements.txt --desc on
	fi

	- name: Check lockfile is up to date
	run: \|
	pip install uv
	uv pip compile requirements.txt -o /tmp/requirements.lock.check
	if ! diff -q requirements.lock /tmp/requirements.lock.check > /dev/null 2>&1; then
	echo "::warning::requirements.lock is out of date. Run: uv pip compile requirements.txt -o requirements.lock"
	fi

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