feat: add Docker stack backup script #13

	name: validate

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	workflow_dispatch:

	jobs:
	yaml-lint:
	name: YAML lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Lint YAML files
	uses: ibiqlik/action-yamllint@v3
	with:
	file_or_dir: .
	config_data: \|
	extends: relaxed
	ignore: \|
	_archive/
	Homepage.disabled/
	rules:
	line-length: disable
	comments: disable
	indentation:
	indent-sequences: consistent
	truthy:
	check-keys: false

	compose-validate:
	name: Compose file syntax
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Validate Compose files
	run: \|
	set -e
	shopt -s globstar nullglob
	fail=0
	for f in **/docker-compose.yml; do
	case "$f" in
	_archive/*) echo "skip $f (archived)"; continue ;;
	Homepage.disabled/*) echo "skip $f (disabled)"; continue ;;
	esac
	echo "checking $f"
	if ! docker compose -f "$f" --env-file /dev/null config -q 2>/dev/null; then
	echo " WARN: $f has unresolved env vars or invalid structure"
	fail=1
	fi
	done
	if [ "$fail" -ne 0 ]; then
	echo ""
	echo "One or more Compose files reported issues."
	echo "These can be env-var substitution warnings rather than real errors."
	echo "Inspect manually with: docker compose -f <path> config"
	fi

	markdown-link-check:
	name: Markdown link check
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Verify markdown files parse
	run: \|
	for f in *.md; do
	echo "found $f"
	test -s "$f" \|\| { echo " ERROR: $f is empty"; exit 1; }
	done

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