Confirmation du videau : boutons hors de la classe actions (mode paysage)

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

web/index.html

@@ -52,7 +52,7 @@
   <!-- Confirmation avant de doubler (ouverte par app/ui/app.js). -->
   <dialog id="double-dialog" class="confirm" aria-labelledby="double-question">
     <p id="double-question"></p>
-    <div class="actions">
+    <div class="confirm-actions">
       <button id="double-confirm" type="button"></button>
       <button id="double-cancel" type="button" class="secondary"></button>
     </div>