refactor: move backend in apps/backend

apps/backend/app/Notifications/VolunteerRoleUpdated.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace apps\backend\app\Notifications;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Notifications\Messages\BroadcastMessage;
+use Illuminate\Notifications\Notification;
+use Illuminate\Support\Facades\Mail;
+
+class VolunteerRoleUpdated extends Notification implements ShouldBroadcast
+{
+    use Queueable;
+
+    public function __construct(public string $role) {}
+
+    public function via($notifiable): array
+    {
+        $channels = [];
+
+        if ($notifiable->web_notifications) {
+            $channels[] = 'database';
+            $channels[] = 'broadcast';
+        }
+
+        return $channels;
+    }
+
+    public function toDatabase($notifiable): array
+    {
+        return [
+            'message' => "Votre rôle a changé pour : {$this->role}",
+            'role'    => $this->role,
+        ];
+    }
+
+    public function toBroadcast($notifiable): BroadcastMessage
+    {
+        return new BroadcastMessage($this->toDatabase($notifiable));
+    }
+}