Api Admin Staff Groups Memberships Create

POST /api/admin/staff-groups/{name}/memberships/ body: {"email": "alice@x"}

Creates or reinstates a membership linking email to the group identified by the URL path. Group must be active; user must already exist (no signup flow).

Self-grant block fires here too — a principal cannot add themselves to a group, even one they already belong to.

POST /api/admin/staff-groups/{name}/memberships/ body: {"email": "alice@x"}

Creates or reinstates a membership linking email to the group identified by the URL path. Group must be active; user must already exist (no signup flow).

Self-grant block fires here too — a principal cannot add themselves to a group, even one they already belong to.