- view/block-rebar-plan-svg.ts: the selected pair from above — S2 lines along the 교각축 (spaced at S2 across the 교축), S1 lines along the 교축 (spaced at S1), each end a dot (leg); the bar sets carry the row numbers only (S1, S2). - The ③ card switches between the C–C section and the plan. Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>