Automate browser testing using Playwright MCP tools. Use this skill when:
(1) Testing web application flows interactively via browser automation
(2) Exploratory testing of UI features with live browser interaction
(3) Verifying tournament management flows (create tournament, add players, manage competitions, queue matches, score matches)
(4) Testing authentication flows with magic links
(5) Debugging UI issues by navigating and inspecting the live application
(6) Testing external scoring interfaces with PIN-based access