Test and debug OTET Hub SSO flow against Staging, Preprod, or Live environments
propotet-hub-demo.irusapp.com — develop branch, broker-backend auth
otet-hub.irusapp.com — feat/b2 branch, B2 API auth
Production Hub on AWS — live users
/authorize with client_id + state/sso/callback with code + statePOST /api/oauth/token (HMAC signed)