John Dvorak
c4a3d304ef
feat: solver consumes CSS contain:paint for clippedBy diagnostics
- Add Contain=5 to geometry world ClipKind enum (avoids collision with
topology engine's CONTAIN=3 vs Mask=3)
- Fix CDP isClippingElement() to detect contain:paint (style.contain)
- CDP topology builder sets clipKind=5 for contain:paint, 1 for overflow
- Enrich clippedByPredicate with clipKind metric:
1=contain:paint, 2=overflow (hidden/scroll/auto)
- Reads world.clipping.clipKind of the reference's clip node