Version package-owned output counts so unversioned global legacy values cannot remain authoritative after session load.
Capture extracted outputs through same-volume package staging, preserve overwrite, skip, and rename conflicts, retain partial abort output deterministically, and eliminate per-package full scans of shared roots while keeping extraction work parallel.
Carry normalized archive path provenance, prune explicitly deleted package generations without dropping package_done run evidence, and transfer run-owned post-process slots without releasing foreign waiters or exceeding maxParallelExtract.
