The fast bucket fed every changed tests/unit file to node:test; vitest-only
subdirs (autoCombo) always fail under that runner and redden the train. The
classifier now carries the same {api,auth,…} allowlist as package.json's
test:unit (guarded by a sync test) and stops excluding ui/*.test.ts, which
test:unit does run.
Merges every queued PR into a throwaway detached worktree cut from origin/<base>,
runs the fast-gates parity suite ONCE on the final train tip, and prints the
evidence line that authorizes gh pr merge --squash --admin per member
(merge-gates.md §7). Conflicting PRs are ejected and reported, the train
continues. Never pushes, never merges PRs, never stashes.
