threshold v1.9.1 carries the magnetar v1.1.0 bump: strict-atom Combine,
audit-grep clean, byte-identity to circl, 35-51% faster than v1.0.
Adjust engine/pq/postquantum_test.go to assert against the exported
quasar.CertSchemeQuasar (0x05) constant rather than a hardcoded 0x04
literal — keeps the test source of truth aligned with quasar/types.go
and avoids drift if the leading byte ever moves again.
Race-clean across the full ./... suite (8m wall, quasar suite 7m40s
post-quantum reasoning included).
zeekay
b731d4de00