PivotControlsPlugin adds drei-style pivot controls to the viewer.
Unlike TransformControls which shows one mode at a time, PivotControls
displays all handles simultaneously: translation arrows, plane sliders,
rotation arcs, and scaling spheres.
Integrates with PickingPlugin for object selection and UndoManagerPlugin
for undo/redo support.
PivotControlsPlugin adds drei-style pivot controls to the viewer. Unlike TransformControls which shows one mode at a time, PivotControls displays all handles simultaneously: translation arrows, plane sliders, rotation arcs, and scaling spheres.
Integrates with PickingPlugin for object selection and UndoManagerPlugin for undo/redo support.