fix(metadata-protocol,metadata): the legacy-organization read seam's loose ends: paged reads, the loader's count, the rollback's named refusal (ADR-0131 D6/D7)

fix(metadata-protocol,metadata): the legacy-organization read seam's loose ends: paged reads, the loader's count, the rollback's named refusal (ADR-0131 D6/D7) #34034