Design del nuovo tab "Braccio DX": fronte (depth cam fissa sul robot) + polso (Nuwa eye-in-hand) + controlli move/home/custom-pose. Router /api/right_arm/*, JS dedicato, persistenza in config tab_right_arm. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>