Feat: Implement email notification about new disposition

src/Event/DispositionCreatedEvent.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Event;
+
+use App\Entity\Disposition;
+use Symfony\Contracts\EventDispatcher\Event;
+
+class DispositionCreatedEvent extends Event
+{
+    public const NAME = 'disposition.created';
+
+    public function __construct(private readonly Disposition $disposition)
+    {}
+
+    public function getDisposition(): Disposition
+    {
+        return $this->disposition;
+    }
+}