refactor(plan): 형상계획 ②의 교대 기본 정보 입력칸 제거, 삽도에 EL 표시

- ②의 교대 편집 영역에서 기본 정보 6칸과 기본값 복원 버튼을 뺌. 기본 정보 편집과 복원은 ①에만 남김
- ②의 삽도에 교좌면·기초 하단·지반고 값을 읽기 전용 라벨로 표시 (abut-section-svg.ts의 AbutLevels)
- 날개벽 형식은 ②의 날개벽 카드에 그대로 둠
- 테스트 631건 통과, 타입 검사·빌드 통과. 브라우저 시각 확인은 미실시

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

src/main.ts

@@ -693,13 +693,19 @@ function fillAbutSlot(slot: (typeof ABUT_SLOTS)[keyof typeof ABUT_SLOTS], rec: A
   const msg = $<HTMLParagraphElement>(slot.msg);
   basic.replaceChildren();
   // ② puts the wing forms in their own card; ① keeps them in the basic items.
-  const wingBox = 'wing' in slot ? $<HTMLDivElement>(slot.wing) : basic;
+  // ② (plan card) shows no basic items: they are edited in ① only, and ② reads them off the 삽도 labels (2026-11-03).
+  const planCard = 'wing' in slot;
+  const wingBox = planCard ? $<HTMLDivElement>(slot.wing) : basic;
   wingBox.replaceChildren();
   bearings.replaceChildren();
   shape.replaceChildren();
   // 삽도 (벽체·흉벽 개략 단면): the values it names are the card's values, so the drawing follows each change.
   const drawing = el('div', undefined, 'abut-section');
-  drawing.innerHTML = abutSectionSvg(resolveShape(rec.shape), { ...ABUT_SHAPE_DEFAULT, ...(rec.shape ?? {}) });
+  drawing.innerHTML = abutSectionSvg(
+    resolveShape(rec.shape),
+    { ...ABUT_SHAPE_DEFAULT, ...(rec.shape ?? {}) },
+    { seatEl: rec.seatEl, footingBottomEl: rec.foundationBottomEl, groundEl: rec.groundEl },
+  );
   shape.append(drawing);
   msg.textContent = '';
   const apply = (next: AbutRecord) => {
@@ -721,7 +727,7 @@ function fillAbutSlot(slot: (typeof ABUT_SLOTS)[keyof typeof ABUT_SLOTS], rec: A
   };
   const idOf = (suffix: string) => `${slot.prefix}-${rec.name}-${suffix}`;
 
-  for (const f of ABUT_EDIT_FIELDS) {
+  for (const f of planCard ? [] : ABUT_EDIT_FIELDS) {
     const id = idOf(f.key);
     const lab = el('label', `${f.label}${f.unit ? ` (${f.unit})` : ''}`);
     lab.htmlFor = id;
@@ -752,7 +758,7 @@ function fillAbutSlot(slot: (typeof ABUT_SLOTS)[keyof typeof ABUT_SLOTS], rec: A
     const def = state.abutDefaults.find((a) => a.name === rec.name);
     if (def) apply(restoreAbutDefault(def));
   });
-  basic.appendChild(restore);
+  if (!planCard) basic.appendChild(restore);
 
   for (const b of rec.bearings) {
     const zId = idOf(`bz-${b.no}`);