- Footings, blindings and piles on a bent axis are placed in their stretch's
frame; 일체기초 is grouped per stretch, so a combined footing never crosses
the kink (separate footings, each aligned with its stretch).
- Footings, blindings and piles are trimmed at the mitre plane like the coping.
- The stage-2 refusal for bent foundations is removed; the Level-half-width
refusal for columns at the kink remains.
- Tests: T형 footing crossing the kink stays in stretch 0; 2주형 with columns
on both sides gives one footing per stretch, with mitre clipping in the scene.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>