Add real screenshot to README #4

	name: ci

	on:
	push:
	branches: [main]
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-24.04
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: '1.25'

	- run: go fmt ./...
	- name: check no formatting changes
	run: git diff --exit-code

	- run: go vet ./...
	- run: go build -o wtkill .

	- name: smoke test — list JSON
	run: \|
	mkdir -p /tmp/wtkill-smoke
	./wtkill list --json --path /tmp/wtkill-smoke --depth 1

	- name: smoke test — clean without filters must refuse
	run: \|
	set +e
	./wtkill clean --path /tmp 2>&1
	code=$?
	set -e
	if [ "$code" != "2" ]; then
	echo "expected exit 2, got $code"
	exit 1
	fi

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