The visual diff summary told reviewers to 'download and open to compare'
instead of linking to the actual run's artifacts page. Now links directly
to the run's /artifacts page and lists both artifacts with descriptions.
Also, screenshots that matched their baselines were never written to
test-results/, so the artifact only contained screenshots that diffed.
Now the actual screenshot is always written to the output dir regardless
of match/diff, so CI artifacts include every screenshot.
ethernet
8b1738904d