Add a button to copy a hand's situation as an AI prompt

Reviews and replays get a "copy for AI" button that builds a text
describing the hand (stacks, positions, actions, pots, board, revealed
cards, result and the site's own judgments) plus questions, ready to
paste into an AI chat. Hidden opponent cards are left out so the
evaluation is based only on what Hero could see.

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

public/assets/style.css

@@ -534,6 +534,9 @@ body.table-page {
 .confirm-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 20px; }
 .confirm-buttons .btn { padding: 12px 8px; font-size: 16px; white-space: normal; }
 .confirm-buttons .btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
+/* 自動でコピーできなかったときに文章を見せるダイアログ（App.copyText） */
+.copy-modal { max-width: 520px; display: flex; flex-direction: column; gap: 10px; max-height: calc(100dvh - 32px); }
+.copy-text { width: 100%; min-height: 240px; flex: 1; resize: vertical; padding: 10px; font: 12px/1.5 ui-monospace, monospace; color: inherit; background: rgba(0, 0, 0, 0.3); border: 1px solid var(--line); border-radius: 8px; }
 @keyframes confirm-fade { from { opacity: 0; } }
 @keyframes confirm-pop { from { opacity: 0; transform: scale(0.94); } }
 @media (prefers-reduced-motion: reduce) {
@@ -812,6 +815,7 @@ label.switch { margin: 0; display: inline-block; }
 .review-modal { max-width: 440px; max-height: calc(100dvh - 32px); overflow-y: auto; overscroll-behavior: contain; }
 .review-buttons { display: grid; grid-template-columns: 1fr 2fr; gap: 8px; margin-top: 16px; }
 .review-buttons:has(> [hidden]) { grid-template-columns: 1fr; }
+.review-copy { width: 100%; margin-top: 8px; }
 .review-link { display: block; margin-top: 12px; font-size: 13px; text-align: center; }
 .rv-head { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
 .rv-cards { display: flex; gap: 3px; }