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/table.html

@@ -119,6 +119,7 @@
         <button type="button" class="btn btn-dark" id="review-close">閉じる</button>
         <button type="button" class="btn btn-orange" id="review-modal-next">次のハンドへ</button>
       </div>
+      <button type="button" class="btn btn-dark review-copy" id="review-copy">🤖 AIに質問する用にコピー</button>
       <a class="link-gold review-link" id="review-link" href="/review" target="_blank" rel="noopener">対局全体のレビュー（点数表・成績・リプレイ）→</a>
     </div>
   </div>