Port permissions

Port's RBAC shows up in two independent places that reuse the same roles/users/teams shape: context lake entities (a blueprint's read, register, update, unregister) and pages/dashboards (read, update). This skill covers both, plus the roles and ownership model that backs them.

Permissions on a workflow's own SELF_SERVE_TRIGGER node are a separate, simpler mechanism owned by the port-workflows skill, see its permissions reference instead of this one.