Add AuditTrailPersisterInterface and improve AuditTrailPersister

- Introduced `AuditTrailPersisterInterface` to define the persisting contract.
- Updated `AuditTrailPersister` to implement the interface and delegate persistence to `AuditTrailRepository`.
- Added `AuditTrailRepository` with `persistImmediately` method to save audit trails directly to the database.

src/Bundle/ChillMainBundle/Audit/AuditTrailPersister.php

@@ -12,8 +12,14 @@ declare(strict_types=1);
 namespace Chill\MainBundle\Audit;
 
 use Chill\MainBundle\Entity\AuditTrail;
+use Chill\MainBundle\Repository\AuditTrailRepository;
 
-class AuditTrailPersister
+final readonly class AuditTrailPersister implements AuditTrailPersisterInterface
 {
-    public function persistAuditTrail(AuditTrail $auditTrail): void {}
+    public function __construct(private AuditTrailRepository $auditTrailRepository) {}
+
+    public function persistAuditTrail(AuditTrail $auditTrail): void
+    {
+        $this->auditTrailRepository->persistImmediately($auditTrail);
+    }
 }

src/Bundle/ChillMainBundle/Audit/AuditTrailPersisterInterface.php

@@ -0,0 +1,19 @@
+<?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\Audit;
+
+use Chill\MainBundle\Entity\AuditTrail;
+
+interface AuditTrailPersisterInterface
+{
+    public function persistAuditTrail(AuditTrail $auditTrail): void;
+}