08719a6109
- Add ResizeCorner type ('se' | 'sw' | 'ne' | 'nw')
- handleResizeStart now accepts a corner argument, stored in DraggingState
- Screen-space math: compute start rect (top/left/right/bottom px), apply delta
per corner, enforce 40px/20px minimums, then convert back to PDF units on pointerup
- renderFields renders four 10x10 blue square handles at each corner with the
correct CSS resize cursor (nw-resize, ne-resize, sw-resize, se-resize)
- Opposite corner is always the anchor; only the two edges adjacent to the dragged
corner move
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>