Runs the project's visual regression testing (VRT) workflow, detects whatever tooling the repo actually uses (justfile/Makefile/package.json targets like visual-diff or visual-update, Storybook test-runner, Playwright screenshot tests, Chromatic, Loki, Percy), executes the diff, and triages every failure as a real regression or an intended change by inspecting the diff images and the components that changed on this branch.
