The interactive shift-drag (box) / shift+ctrl-drag (circle) now creates a
new persistent ROI in the list instead of feeding the old single-ROI
scratch panel. The base emits a roiScratchDrawn hook on release; the
diffraction image turns the drawn shape into a named ROI committed via
SetROIDefinition.
The old JFJochViewerImageROIStatistics scratch panel and all its wiring
(box/circle configuration, single-ROI result, add/subtract user mask) are
removed from the side panel and window; the ROI list is now the single
source.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>