wip: guest account registration (self-service and booking create flow)

tests/Repository/UserRepositoryTest.php

@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Repository;
+
+use App\Repository\UserRepository;
+use Doctrine\ORM\Query;
+use Doctrine\ORM\QueryBuilder;
+use PHPUnit\Framework\TestCase;
+
+class UserRepositoryTest extends TestCase
+{
+    public function testDeleteExpiredDormantGuestInvitesBuildsExpectedQuery(): void
+    {
+        $query = $this->createMock(Query::class);
+        $query
+            ->expects(self::once())
+            ->method('execute')
+            ->willReturn(2);
+
+        $threshold = new \DateTimeImmutable('2026-05-29 01:00:00');
+        $queryBuilder = $this->createMock(QueryBuilder::class);
+        $andWhereCalls = 0;
+        $queryBuilder
+            ->expects(self::once())
+            ->method('delete')
+            ->willReturnSelf();
+        $queryBuilder
+            ->expects(self::once())
+            ->method('where')
+            ->with('u.welcomeActivatedAt IS NULL')
+            ->willReturnSelf();
+        $queryBuilder
+            ->expects(self::exactly(2))
+            ->method('andWhere')
+            ->willReturnCallback(function (string $condition) use (&$andWhereCalls, $queryBuilder): QueryBuilder {
+                $expectedConditions = [
+                    'u.welcomeActivationExpiresAt IS NOT NULL',
+                    'u.welcomeActivationExpiresAt <= :threshold',
+                ];
+
+                self::assertSame($expectedConditions[$andWhereCalls], $condition);
+                ++$andWhereCalls;
+
+                return $queryBuilder;
+            });
+        $queryBuilder
+            ->expects(self::once())
+            ->method('setParameter')
+            ->with('threshold', $threshold)
+            ->willReturnSelf();
+        $queryBuilder
+            ->expects(self::once())
+            ->method('getQuery')
+            ->willReturn($query);
+
+        $repository = new class($queryBuilder) extends UserRepository {
+            public function __construct(private readonly QueryBuilder $queryBuilder)
+            {
+            }
+
+            public function createQueryBuilder($alias, $indexBy = null): QueryBuilder
+            {
+                return $this->queryBuilder;
+            }
+        };
+
+        self::assertSame(2, $repository->deleteExpiredDormantGuestInvites($threshold));
+    }
+}