✨ feat(promotion): Intègre la gestion et l'application des promotions au flux de réservation et au calcul du panier.

assets/tools/FlowReserve.js

@@ -394,13 +394,28 @@ export class FlowReserve extends HTMLAnchorElement {
         // --- RENDER FOOTER (TOTALS) ---
         const total = data.total || {};
         const hasTva = total.totalTva > 0;
+        const promotion = data.promotion;
+
+        let promoHtml = '';
+        let originalTotalHT = total.totalHT;
+
+        if (promotion && total.discount > 0) {
+             originalTotalHT = total.totalHT + total.discount;
+             promoHtml = `
+                <div class="flex justify-between text-xs text-[#f39e36] font-bold uppercase">
+                    <span>${promotion.name} (-${promotion.percentage}%)</span>
+                    <span>-${this.formatPrice(total.discount)}</span>
+                </div>
+            `;
+        }
 
         footer.innerHTML = `
             <div class="space-y-2 mb-6">
                 <div class="flex justify-between text-xs text-slate-500 font-bold uppercase">
                     <span>Total HT</span>
-                    <span>${this.formatPrice(total.totalHT)}</span>
+                    <span>${this.formatPrice(originalTotalHT)}</span>
                 </div>
+                ${promoHtml}
                 ${hasTva ? `
                     <div class="flex justify-between text-xs text-slate-500 font-bold uppercase">
                         <span>TVA</span>