Recent inbound records list with semantic selected-row treatment.

Sibling of MailglassAdmin.Operator.DeliveriesList (D-48-13 — clone, not a refactor). Rows render the masked envelope recipient via the one promoted MailglassAdmin.Components.mask_recipient/1 definition, the record id in mono, an outcome badge, and a meta line tenant · PROVIDER · matched-mailbox-or-"no match" · received_at.