feat: 프로젝트 공통 지반모델·교대 지반 통합·재료표/수량 진입·옥성교 랜딩 히어로 (11-06~11-09 작업분)

공용 파일(main.ts·index.html·style.css)에서 서로 얽혀 있어 한 커밋으로 묶음.
- 지반: ① 형상 프로젝트 지반모델 관리창(생성·JSON 불러오기·교각별 비교·선택 적용),
  프로젝트 JSON 내장 groundModel 추출, 교대 8행 통합 적용·공통지형 중복격자 제외
- 재료표·수량: 상단 ⑤ 메뉴·배근 바로가기, 결과 교각/탭 기억, 수량 워크북·정합 보정
- 랜딩: 옥성교 6교각 히어로 이미지·투영 강조점·좌→우 광선·지형 라운드/도로 연결
- 검증 스크립트(verify-project-ground/ground-abutments/okseong-user-files/quantity-*/landing-hero 등)
정본: DOC/04_실행/실행_*_2026-11-09_v0.1.00.md

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

scripts/promote-landing-hero.py

@@ -0,0 +1,30 @@
+"""Promote one rendered camera variant; preserve the previous landing image."""
+import json
+import shutil
+import sys
+from pathlib import Path
+
+root = Path(__file__).resolve().parents[1]
+assets = root / '랜딩페이지/assets'
+variant = sys.argv[1] if len(sys.argv) > 1 else 'horizontal-smooth'
+if variant not in ('balanced', 'low', 'high', 'trim30', 'trim20', 'refined', 'horizontal-smooth'):
+    raise SystemExit('Unknown camera variant')
+source = root / ('.verify/landing-horizontal-20261109' if variant == 'horizontal-smooth' else '.verify/landing-hero-20261109')
+metadata = json.loads((source / f'{variant}.json').read_text())
+if variant == 'horizontal-smooth':
+    assert metadata['along'] == 0 and metadata['outline']['addedOutsideSourcePixels'] == 0
+    assert metadata['piers'] == 6 and metadata['abutments'] == 2
+    # Full curve control points remain in the capture audit, outside the service bundle.
+    metadata['outline'].pop('path')
+backup = source / ('before-horizontal' if variant == 'horizontal-smooth' else 'before-refined' if variant == 'refined' else 'before-trim30')
+backup.mkdir(exist_ok=True)
+for name in ('okseong-model-hero.png', 'okseong-model-hero.webp', 'okseong-hero-capture.ts'):
+    if (assets / name).exists() and not (backup / name).exists():
+        shutil.copyfile(assets / name, backup / name)
+for kind in ('png', 'webp'):
+    shutil.copyfile(source / f'{variant}.{kind}', assets / f'okseong-model-hero.{kind}')
+metadata['terrainFlow'] = [None if p is None else {'x': p['x'], 'y': p['y']} for p in metadata['terrainFlow']]
+(assets / 'okseong-hero-capture.ts').write_text(
+    '// Generated by scripts/promote-landing-hero.py from actual model projection.\n'
+    'export const heroCapture = ' + json.dumps(metadata, ensure_ascii=False, indent=2) + ' as const;\n'
+)