Add log SMS when a message is sent

Introduced a new event subscriber to log SMS sent events with details such as recipient and message IDs. This enhances monitoring and debugging of SMS delivery.

config/packages/notifier.yaml

@@ -1,6 +1,7 @@
 framework:
     notifier:
         texter_transports:
+            #ovhcloud: '%env(OVHCLOUD_DSN)%'
             ovhcloud: '%env(SHORT_MESSAGE_DSN)%'
         channel_policy:
             # use chat/slack, chat/telegram, sms/twilio or sms/nexmo

src/Bundle/ChillMainBundle/Service/Notifier/SentMessageEventSubscriber.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Service\Notifier;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\Notifier\Event\SentMessageEvent;
+
+final readonly class SentMessageEventSubscriber implements EventSubscriberInterface
+{
+    public function __construct(
+        private LoggerInterface $logger,
+    ) {}
+
+    public static function getSubscribedEvents()
+    {
+        return [
+            SentMessageEvent::class => ['onSentMessage', 0],
+        ];
+    }
+
+    public function onSentMessage(SentMessageEvent $event): void
+    {
+        $message = $event->getMessage();
+
+        $this->logger->warning('[sms] a sms was sent', ['validReceiversI' => $message->getOriginalMessage()->getRecipientId(), 'idsI' => $message->getMessageId()]);
+    }
+}