[liuliu-dev]

what changed

• add Playwright ^1.64.1 as an explicit dev dependency and update the lockfile
• keep all workflows on ubuntu-latest; no runner pins remain in the final diff
• the CLI browser installation and @web/test-runner-playwright share Playwright 1.64.1

why

The failed job on #390 stops before tests run: ubuntu-latest resolves to Ubuntu 26.04, which the previously locked Playwright 1.58.2 does not support. Playwright 1.64.1 supports Ubuntu 26.04, fixing this without an Ubuntu pin that would need a later cleanup.

This is a standalone fix against main; it does not include the changes from #390. Once merged, #390 will need to pick it up to fix its checks.

validation

• git diff --check
• npx playwright install chromium
• npm test — build, type-check, lint, and all 638 browser tests pass locally on macOS
• npm ls confirms the CLI and test runner share Playwright 1.64.1
• PR CI validates browser dependency installation and tests on ubuntu-latest

[Copilot]

🟢 Approval recommended

No active review issues are identified in the supplied evidence, and the runner changes are documented with their Playwright compatibility rationale.

No open issues 🎉

What changed in this PR

This pull request pins the Playwright-related CI and publishing jobs to Ubuntu 24.04 to avoid incompatibility with newer Ubuntu images.

Changes:

• Pins the Node CI job to ubuntu-24.04.
• Pins both publishing jobs to ubuntu-24.04.
• Documents the Playwright compatibility rationale beside each runner setting.

This pull request is ready to be approved.

File	Description
.github/​workflows/​test.yml	Pins the Node CI job to Ubuntu 24.04 for Playwright compatibility.
.github/​workflows/​publish.yml	Pins both publishing jobs to Ubuntu 24.04 and documents the compatibility reason.

_{Review effort: Lite (auto)}