- Add playwright.config.ts with Chromium-only setup for Lighthouse - Configure three test projects: chromium, mobile-chrome, and tablet - Enable remote debugging ports (9222-9224) for Lighthouse integration - Set up web server to auto-start Next.js dev server - Add tests/e2e directory with setup verification test Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>