feat: add review highlight controls (#6)

web/index.html

@@ -26,6 +26,12 @@
   <label><span><i class="legend-dot outfall"></i>방류구 <small id="layer-outfall-count"></small></span><input id="show-outfall" data-layer="outfall" type="checkbox" checked></label>
   <label><span><i class="legend-dot other"></i>저류·펌프·위어 <small id="layer-other-count"></small></span><input id="show-other" data-layer="other" type="checkbox" checked></label>
  </div></section>
+ <section class="audit-highlight-controls" aria-label="점검 대상 강조">
+  <label class="toggle-label"><span>점검 대상 강조<small id="audit-highlight-count">점검 목록 확인 중</small></span><input id="audit-highlight" type="checkbox"></label>
+  <label class="audit-steady-label"><input id="audit-steady" type="checkbox"> 고정 강조 (깜빡임 없이)</label>
+  <p class="fine-print" id="audit-highlight-note">빨간색 1초 · 원래 색 1초 반복<br>오류 확정이 아닌 점검 필요 표시입니다.</p>
+  <button id="audit-unplaced" class="text-button">위치 표시 불가 시설 확인</button>
+ </section>
  <section><div class="section-heading"><h3>높이와 형상</h3><button id="actual-scale" class="text-button">실제 제원 비율</button></div>
   <label class="range-heading" for="height-scale">표고·높이 배율 <output id="height-output">×3</output></label><input id="height-scale" type="range" min="1" max="10" step="0.5" value="3"><div class="range-ends"><span>×1</span><span>×10</span></div>
   <label class="range-heading" for="size-scale">관로 단면·맨홀 폭 배율 <output id="size-output">×3</output></label><input id="size-scale" type="range" min="1" max="8" step="0.5" value="3"><div class="range-ends"><span>×1</span><span>×8</span></div>