feat(core,view): shape-option rules (plan C5) and pier selection rules (plan C6)

- C5: each member's options come from one table. Only the defaults (the 1단계
  model) are selectable. The others show as disabled chips with 규칙 미정 (Q6).
  The member summary is built from the defaults.
- C6: 전체 선택 acts only on visible, buildable piers; it reads 선택 해제 only
  when all of those are checked. A check survives a change of the type filter.
  The pier list scrolls past 300 px, for 20 piers.
- Tests: defaults are the only choices; unknown options refused; the 20-pier
  mixed list with two failed piers; filter and check persistence.
- Not verified in a browser.

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

src/style.css

@@ -663,4 +663,12 @@ body { background: #eef1f4; font-family: 'Noto Sans KR', system-ui, sans-serif;
 #member-summary { color: #55606e; margin: 4px 0 8px; }
 .plan .viewer { flex: 1 1 380px; }
 .plan .results { flex: 1 1 300px; max-width: 360px; }
+/* 형상 선택칩 (C5) and the scrolling pier list (C6) */
+.shape-options { display: grid; gap: 6px; margin: 6px 0 10px; }
+.shape-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
+.shape-row .lbl { min-width: 84px; margin: 0; }
+.chip-opt { min-height: 36px; padding: 0 10px; border: 1px solid #c3cbd4; border-radius: 16px; background: #ffffff; color: #18212b; font-size: 13px; cursor: pointer; }
+.chip-opt[aria-pressed='true'] { background: #1f5fa8; border-color: #1f5fa8; color: #ffffff; font-weight: 700; }
+.chip-opt:disabled { color: #8a95a3; background: #f2f4f7; border-style: dashed; cursor: default; }
+.pier-items { max-height: 300px; overflow-y: auto; }