Min/max were seeded at 0, so any geometry not touching the origin got an
inflated box, and the first move only updated max (else-if). Rotated
canonical drawings are the common trigger: their origin ends up outside
the shape, which skewed Part bounds and bbox-based alignment.
Track the real extents and keep returning a zero box for empty programs.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
ajandClaude Sonnet 5
2a855139d2