Add rubocop #4

	name: CI

	on:
	pull_request:
	push:
	branches: [main]

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

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: .ruby-version
	bundler-cache: true

	- name: Lint code for consistent style
	run: bin/rubocop -f github

	test:
	runs-on: ubuntu-latest

	services:
	postgres:
	image: postgres
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	ports:
	- 5432:5432
	options: --health-cmd="pg_isready" --health-interval=10s --health-timeout=5s --health-retries=3

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

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: .ruby-version
	bundler-cache: true

	- name: Run tests
	env:
	RAILS_ENV: test
	DATABASE_URL: postgres://postgres:postgres@localhost:5432
	run: \|
	gem install error_highlight -v 0.5.1
	bin/rails db:setup test test:system

	- name: Keep screenshots from failed system tests
	uses: actions/upload-artifact@v4
	if: failure()
	with:
	name: screenshots
	path: ${{ github.workspace }}/tmp/screenshots
	if-no-files-found: ignore

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