[pr-review] Daily PR Code Quality Review — 37734425232 #66804

#66024 — Fair DAG work queues (partial review)

• The PR is very large: it changes hundreds of files, and the file patches total about 690 KB. Most are regenerated .lock.yml files, plus docs and workflow .md files.
• Only file names and a few patches were inspected. I could not run the line-level checks on it: missing error handling, exported functions without doc comments, assertion-free tests and functions over 80 lines.
• Neither the Go sources nor .github/scripts/work-queue-formal-check.test.cjs was inspected.
• The PR carries a major changeset (breaking change). Consider splitting it into smaller reviewable PRs.

#56568 — Unsigned push fallback in pushSignedCommits

The change is in actions/setup/js/push_signed_commits.cjs, which is JavaScript, so the Go-specific checks do not apply. The diff was only partly read, and the tests were not checked.

• Error handling is improved. A failed git rebase --abort is now fatal instead of silently ignored, and the error carries a cause.
• It adds a new error class, PushSignedCommitsUnsignedFallbackFailed, with a doc comment.
• The fallback runs the same merge-commit, file-mode and file-protection validation as the other unsigned-push paths.
• The pushSignedCommits function is already very long, and this PR adds roughly 100 more lines to it. That is well over the 80-line guideline, so consider extracting the rebase-recovery and fallback logic into helpers.
• I did not check whether tests for the new fallback paths were added.