feat(promotion code): Promotion code system done

I added the features for users to use promotion code
and for promoters to create on their events.
May be rewrite to discount code?

app/views/pages/dashboard.html.erb

@@ -7,11 +7,11 @@
       { name: 'Tableau de bord', path: dashboard_path }
     ] %>
 
-  <!-- Page Header -->
+  <!-- Promoter Page Header -->
   <div class="mb-8">
     <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
       <div>
-        <h1 class="text-3xl font-bold text-gray-900">Mon tableau de bord</h1>
+        <h1 class="text-3xl font-bold text-gray-900">Mon tableau de bord promoteur</h1>
         <p class="text-gray-600 mt-1">Gérez vos commandes et accédez à vos billets</p>
       </div>
 
@@ -76,7 +76,9 @@
         </div>
       </div>
 
+      <!-- Brouillons -->
       <div class="bg-gradient-to-br from-orange-50 to-orange-100 rounded-2xl p-6 border border-orange-200">
+        <%= link_to promoter_events_path do %>
         <div class="flex items-center justify-between">
           <div>
             <p class="text-orange-600 text-sm font-medium">Brouillons</p>
@@ -86,7 +88,9 @@
             <i data-lucide="edit-3" class="w-6 h-6 text-orange-700"></i>
           </div>
         </div>
-      </div>
+        <% end %>
+      </div><!-- /Brouillons -->
+
     </div>
 
     <!-- Revenue Chart & Recent Events -->
@@ -273,6 +277,16 @@
     </div>
   <% end %>
 
+  <!-- User Page Header -->
+  <div class="mb-8">
+    <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
+      <div>
+        <h1 class="text-3xl font-bold text-gray-900">Mon tableau de bord</h1>
+        <p class="text-gray-600 mt-1">Accédez à vos billets et évenements</p>
+      </div>
+    </div>
+  </div>
+
   <!-- User's Orders Section -->
   <div class="bg-white rounded-2xl shadow-lg mb-8">
     <div class="border-b border-gray-100 p-4 sm:p-6">