Restructure the cutting parameters dialog with separate Lead-In and Lead-Out GroupBoxes per tab, exposing editable length/angle/radius fields for lead-outs (previously hardcoded). Add Tabs section with enable checkbox and width control. Also fix lead-in/lead-out angle calculations and convert cutting strategy output to incremental mode. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>