Fixed all guide section board visualizations to use correct props:
- Replaced non-existent `cropToSquares` prop with `cropArea` object
- Added `highlightSquares` prop for yellow highlighting of piece squares
- Created `squaresToCropArea()` helper function in each section
- Updated all examples in CaptureSection (6 examples)
- Updated all examples in HarmonySection (3 examples)
- Updated pyramid example in PiecesSection
- Updated victory example in VictorySection
Board examples now properly display:
✓ Cropped to relevant squares only
✓ Yellow highlighting on squares with pieces
✓ Proper coordinate labels
This matches the original guide design shown in the reference image.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
d0a8fcdea6