fix(structure): 고른 구조물 군 바꿈 = 횡단 카드 · 벽 · 세월교 · BOX 강조 · 넘김 되얹기 표시 · 선택 칸도 풂 · B05 에서 풀면 B06 들어올 때도 풂(54-38)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013rJwJMVL4EE31y77TB11AP

A00_Common/design/design_view_cross.ts

@@ -190,7 +190,7 @@ export async function mountCrossView(
     focusChainage: (chainageM) => {
       if (!isWallSelecting()) focusStationAt(chainageM);
     },
-    releaseCard: () => sectionView.focusStation(null),
+    releaseCard: () => releaseCross(),
     markStructure: (structureId) => sectionView.selectMark(structureId),
     applyPipeOptions: (chainageM, patch) =>
       applyPipeOptionsToCache(pipeOptionsContext, chainageM, patch),
@@ -491,6 +491,27 @@ export async function mountCrossView(
     if (applied) appliedPick = signature;
   }
 
+  /** 고름을 다 풂(54-38) — 카드 · 벽 · 세월교 · BOX 강조 · 넘김 되얹기 표시 · 선택 칸. */
+  function releaseCross(): void {
+    const { revetOffset, ford, box } = stationControls;
+    const lit = (sectionDetail?.cross_sections ?? []).filter(
+      (s) =>
+        revetOffset.highlightFor(s) ||
+        ford.selectedFor(s.chainage_m) ||
+        box.selectedFor(s.chainage_m),
+    );
+    for (const s of lit) {
+      if (revetOffset.selectedFor(s)) revetOffset.select(s.chainage_m, null);
+      if (ford.selectedFor(s.chainage_m)) ford.select(s.chainage_m, null);
+      if (box.selectedFor(s.chainage_m)) box.select(s.chainage_m, null);
+    }
+    structuresPanel.releasePipe();
+    sectionView.focusStation(null);
+    sectionView.refreshCards(lit.map((s) => s.chainage_m));
+    appliedPick = null;
+    selectDesign(projectId, NO_SELECTION, { from: "b06" });
+  }
+
   function renderSectionDetail(): void {
     if (!sectionDetail) return;
     showSectionView();
@@ -541,6 +562,8 @@ export async function mountCrossView(
     if (currentRouteId === null) return;
     // 떠난 사이 종단 보기가 폼을 다른 것으로 바꿨을 수 있음 — 같은 넘김값도 다시 적용(53-1)
     appliedPick = null;
+    // 종단 보기에서 고름을 풀었으면 횡단 강조도 풂(54-38)
+    if (!readStructurePick(projectId)) releaseCross();
     void structuresPanel.load().then(restoreStructurePick);
     void refreshDetailForStructures().then(() => reconcileStaleDesigns());
   });