CS/sales/accounting/staff list endpoints and sales pricing writes
require IAM; fleet service env sets STAFF_AUTH=1. Department tests
use a private books file so lab NATS does not leak into them.
verae-staff-iam (:3028) is the people directory — owner, billing-admin,
cs, sales, accounting, operator, viewer — with scrypt passwords, sessions,
and an audit log. Admin console login uses it when STAFF_IAM_URL is set
and hides tabs the account cannot use. CS/sales/accounting/staff/fleet
check permissions such as cs.credit and fleet.operate. Shared staff key
remains only as a fallback when IAM is unset.
