a9a9dc8a0a
Replace SetTemporaryParts/ClearTemporaryParts/AcceptTemporaryParts in all three progress callbacks (RunAutoNest, FillPlate, FillArea) with the new two-bucket API: SetStationaryParts for IsOverallBest updates, SetActiveParts for transient updates, AcceptPreviewParts(parts) and ClearPreviewParts for completion. Also removes the now-redundant highWaterMark guards from FillPlate_Click and FillArea_Click. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>