New tab replaces the removed Servo Visuale. Shift+drag on the RGB image
defines a rectangle, 'Calcola piano' calls POST /api/work_plane/fit and
renders the plane + a colored scatter in 3D. Adjusting the offset slider
re-colors the scatter client-side. 'Salva piano' persists; 'Rimuovi piano
salvato' clears.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
