Validates a merged guard stream, wholesale rather than per row: one
malformed guard fails the whole list, since a partial guard set would
produce incorrect verdicts. An empty list passes through by the same
reference, for callers relying on NO_GUARDS identity. Guard documents
have no version stamp, so there is no model gate here.
Validates a merged guard stream, wholesale rather than per row: one malformed guard fails the whole list, since a partial guard set would produce incorrect verdicts. An empty list passes through by the same reference, for callers relying on
NO_GUARDSidentity. Guard documents have no version stamp, so there is no model gate here.