feat: create Mailjet lists for travel mailings

migrations/Version20261104142531.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20261104142531 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Adds travel_mailing_list to track the Mailjet contact lists created per travel until their deletion.';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('CREATE TABLE travel_mailing_list (id INT AUTO_INCREMENT NOT NULL, travel_code VARCHAR(32) NOT NULL, mailjet_list_id INT NOT NULL, delete_after DATETIME NOT NULL COMMENT \'(DC2Type:datetime_immutable)\', created_at DATETIME NOT NULL COMMENT \'(DC2Type:datetime_immutable)\', UNIQUE INDEX UNIQ_68DC6E28BC4DD335 (travel_code), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE `utf8mb4_unicode_ci` ENGINE = InnoDB');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('DROP TABLE travel_mailing_list');
+    }
+}