Browse was the only one of the eight HTML tools with no Playwright
spec. Added two tests at the depth of mdedit.spec.js:
- loads with the empty state visible and add-directory button enabled
- renders rows from a mock directory after picking
Both use the existing tests/fixtures/mock-fs-api.js machinery (no new
test scaffolding) and run in ~2s under the existing chromium-only
project.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
