A "Certs" column appears for anyone holding certifications.grant (the
Instructor capability), independent of admin/board, so a non-admin
instructor can reach it. The button opens a self-contained dialog that
loads the member's grants and the active cert catalog, and supports
award (with optional note + expiry override), soft revoke, and renew.
Status badges come from the shared certifications-logic. The members
server page resolves certifications.grant via the RPC and passes it in.
