fix(view): left-align the rebar table text and clarify the C14 note

- The 번호·규격 and 비고 columns of the ③ table read left to right; the note
  wraps instead of stretching the table.
- C14 note: "위 2줄 11본씩, 아래 5 · 6 · 3 · 2 (합 38)".

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

src/main.ts

@@ -717,7 +717,7 @@ function renderRebar(): void {
   const { rows, warnings } = rebarSummary(pier.model);
   $('rebar-note').textContent = `${pier.input.name} · 형상 기준 계산 · 값은 기본값 기준 문서 규칙`;
   const shown = rows.filter((r) => r.member === state.rebarMember);
-  const table = el('table', undefined, 'grid-table');
+  const table = el('table', undefined, 'grid-table rebar-table');
   const head = el('thead');
   const hr = el('tr');
   for (const h of ['번호', '규격', '개수', '길이 (mm)', '비고']) hr.appendChild(el('th', h));