Follow-up: user explicitly authorised trying regular apps. carlos apps create --console https://console.carloku.com --account-id bdj --app homepage-constellation succeeded, followed by ordinary static deploy, ship, promote and a live URL at https://homepage-constellation.bdj.oncarlos.com. Live HTML/CSS/robots bytes match the prepared artifact. Field notes likewise deployed successfully.
This confirms regular app creation/deployment works for this membership/account, while --temporary returned 404. A direct regular deploy before apps create also returned list instances: not found; explicit supported app creation resolved that. Temporary lifecycle support remains unverified and this issue remains open. The user-authorised regular previews have no automatic expiry.