feat(abut): 날개벽 측면 삽도에 흉벽 · 브라켓 단차 · 저판을 함께 그리고 교대 삽도 EL 표기를 EL.xx.xxx로 통일

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>

src/view/abut-bearing-svg.ts

@@ -78,8 +78,8 @@ export function abutBearingSectionSvg(d: AbutBearingDetail): string {
     text(right, at(d.h1 + d.h2 + d.h3 / 2) + 4, `h3 ${d.h3}`, 'start'),
     text(right, at(E - d.h4 / 2) + 4, `h4 ${d.h4}`, 'start'),
     text(cx, at(E) - 10, `E = ${E}`),
-    text(24, base + 16, `교좌면 ${d.seatEl.toFixed(3)}`, 'start', MUTED),
-    text(24, at(d.h1 + d.h2) - 4, `z ${d.z.toFixed(3)}`, 'start', MUTED),
+    text(24, base + 16, `교좌면 EL.${d.seatEl.toFixed(3)}`, 'start', MUTED),
+    text(24, at(d.h1 + d.h2) - 4, `z EL.${d.z.toFixed(3)}`, 'start', MUTED),
     text(cx, 244, '교축 방향 · 높이 2배 과장', 'middle', MUTED),
     '</svg>',
   ].join('');