Merge remote-tracking branch 'origin/sub_laptop_2' into sub_laptop_5

- test_m02_labor_ref 충돌: 134 사전조합 줄 하나 + 142-2 알약 굳힘 시험 · 사본 셈 새 꼴(줄.기준.계)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015sDZSjFvoiDjdGpgj3muc3

B05_Profile/B05_Profile_UI_Style_Structures.css

@@ -608,3 +608,20 @@
 .b05-structure__widening [data-widening-run][aria-pressed="true"]::before {
   content: "✓ ";
 }
+
+/* 확폭 면적(138-2) — 단추 안 오른쪽 끝 · 끈 구간 회색 */
+.b05-structure__widening [data-widening-run] {
+  display: flex;
+  align-items: center;
+  column-gap: 4px;
+}
+
+.b05-structure__widening-area {
+  margin-left: auto;
+  padding-left: var(--spacing-8, 8px);
+  white-space: nowrap;
+}
+
+.b05-structure__widening [aria-pressed="false"] .b05-structure__widening-area {
+  color: var(--color-text-secondary);
+}