Plan dettagliato per la tab "Pose 3D" (writing-plans skill),
basato sullo spec del 2026-05-21. 15 task suddivisi in backend
(routes + tests TDD) e frontend (Three.js viewport + gizmo +
mode toggle Editor/Jog).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
