#19761 ci: gallery format edits own only entry problems (no bead)

Summary

Between 04:23 and 05:20Z, #19699 and #19703 went red in web / react-apps-check on gallery-coverage. The failing finding was pages/settings/components/ThemeFiles.tsx#ThemeFiles has no entry. That gap came from #19688, which neither PR touched. #19572 already limits the check to findings the PR owns. But both PRs edited webviews/src/gallery/format.ts, and that file was in the check's rules, which makes every finding count. format.ts changed in 5 feat PRs in the last three days. So every PR that edited the gallery format inherited every coverage gap on the base branch.

• Cause: format.ts only provides validateEntries. It, play.ts and the experiments files decide only "the entries are valid".
• Fix: those files now own only that test's findings. The four coverage tests keep gallery-coverage.test.ts, prScope.ts and scripts/gallery/entries.ts as their rules. Editing the check itself still owns every finding, and a new case pins that.
• Review follow-up: format.ts also held componentEntry and the other entry constructors, which build the covers and id the coverage tests read. They now live in src/gallery/entry.ts, which is a rule for every gallery test. format.ts re-exports them, so no importer changes. New cases pin both sides: editing entry.ts owns coverage gaps, and editing format.ts still owns entry problems.

This was the largest still-active cause of unrelated reds in the last 12 hours, after same-tree, which #19615/#19616 fixed.

Testing

heavy --mem 4G python3 -m unittest scripts.tests.test_pr_scoped_webviews_checks:

• Red on b9c2f27ef9c3: test_coverage_base_gap_warns_on_a_pr_changing_the_gallery_format failed with 1 != 0; every component and page has an entry or an allowlist line failed.
• Green on the fix: 13 tests OK.

bun test test/gallery-coverage.test.ts passes (6/6), and bun run check passes.

Changelog

none

🤖 Generated with Claude Code

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Summary by cubic

Stops gallery coverage checks from flagging unrelated base-branch coverage gaps on PRs that edit webviews/src/gallery/format.ts.

The check previously listed format.ts as owning the whole check, so editing it made every existing base-branch finding (like ThemeFiles missing an entry) count against the PR. The entry constructors moved to the new webviews/src/gallery/entry.ts (format.ts re-exports them), and that file stays a rule for every gallery test, while format.ts edits now own only "the entries are valid" findings. New tests pin that format.ts edits don't own base coverage gaps but do own entry problems, and that editing the check or entry.ts still owns every finding.