Playwright trace artifacts are part of the answer, not an optional attachment

For CI UI failures, traces preserve the browser state needed to review selector, timing, network, and console clues.

For a Playwright UI failure in CI, the trace artifact is part of the answer. The assertion line says what failed, but the trace can show whether the page was late, the selector matched the wrong element, the network call failed, or the click happened before the UI was ready. Without that artifact, the review often turns into guessing from a screenshot and one log line.