Approved design: consolidate OtOpcUa, MxAccessGateway, ScadaBridge dev/test auth
onto one shared GLAuth at 10.100.0.35:3893 (dc=zb,dc=local, plaintext). App-neutral
source of truth in scadaproj/infra/glauth/; merged directory with gid families
partitioned 55xx/56xx/57xx + multi-role/admin/serviceaccount; per-app Server
repoints; incremental rollout keeping old glauths until verified.