Logo SikaPics via balise img (fix ::before invisible)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/js/app.js

@@ -31,6 +31,18 @@ function appliquerConfig() {
     document.documentElement.style.setProperty('--secondaire', event.couleur_secondaire || '#ffffff');
   }
 
+  // Logo selon le theme
+  const logo = document.getElementById('accueil-logo');
+  if (logo) {
+    const logos = { sikapics: '/assets/logos/sikapics.png' };
+    if (logos[theme]) {
+      logo.src = logos[theme];
+      logo.classList.remove('cache');
+    } else {
+      logo.classList.add('cache');
+    }
+  }
+
   // Nom evenement
   const h1 = document.getElementById('nom-evenement');
   if (h1) h1.textContent = event.nom || 'Photobooth';