forked from 1b-agent/fieldcraft-upstream
With the form open a drag on the mesh grabs the node under the press and moves it in the screen plane; Alt + scroll sizes the radius. The view draws the original edges as a ghost under the moved ones, coloured by how each element's scaled Jacobian changed, and the sphere; the form shows the region's numbers live. Release runs mesh.node.move (one undo step), Esc cancels. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo