feat(web): show how much of a PR is code vs tests, mocks, and generated files (#22189)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
92a6f6d731Theo Browne committed on 10/20/2026, 8:01:01 AM· committed by GitHubparentd18352e
23 files changedLine totals unavailable