feat: fragment messages to gain efficiency

src/Message/ProcessDomainTrigger.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace App\Message;
+
+use App\Entity\Domain;
+use App\Entity\WatchList;
+use DateTimeImmutable;
+
+final class ProcessDomainTrigger
+{
+    public function __construct(
+        public string         $watchListToken,
+        public string            $ldhName,
+        public DateTimeImmutable $updatedAt
+    )
+    {
+    }
+}