Add homepage, tarifs, legal pages, navbar, footer and full test coverage

- Homepage: hero, how it works (buyer/organizer), features, CTA
- Tarifs: 3 plans (Gratuit, Basique 10€, Sur-mesure), JSON-LD Product
- Legal pages: mentions legales, CGU (tabs buyer/organizer), CGV, RGPD, cookies, hosting
- Navbar: neubrutalism style, logo liip, mobile menu, SEO attributes
- Footer: contact, description, legal links, tarifs
- Sitemap: add /tarifs and /sitemap-orgas-{page}.xml
- Liip Imagine: remove S3, webp format on all filters
- Tests: full coverage for all controllers, services, repositories
- Fix CSP: replace inline onclick with data-tab JS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/Repository/MessengerLogRepositoryTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Tests\Repository;
+
+use App\Entity\MessengerLog;
+use App\Repository\MessengerLogRepository;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+class MessengerLogRepositoryTest extends KernelTestCase
+{
+    public function testRepositoryIsRegistered(): void
+    {
+        self::bootKernel();
+        $repository = static::getContainer()->get(MessengerLogRepository::class);
+
+        self::assertInstanceOf(MessengerLogRepository::class, $repository);
+    }
+
+    public function testPersistAndFind(): void
+    {
+        self::bootKernel();
+        $em = static::getContainer()->get('doctrine.orm.entity_manager');
+
+        $log = new MessengerLog(
+            messageClass: 'App\Message\TestMessage',
+            messageBody: 'serialized',
+            errorMessage: 'Test error',
+            stackTrace: 'trace',
+            transportName: 'async',
+            retryCount: 1,
+        );
+
+        $em->persist($log);
+        $em->flush();
+
+        $found = $em->getRepository(MessengerLog::class)->find($log->getId());
+        self::assertNotNull($found);
+        self::assertSame('App\Message\TestMessage', $found->getMessageClass());
+    }
+}

tests/Repository/UserRepositoryTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Tests\Repository;
+
+use App\Entity\User;
+use App\Repository\UserRepository;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
+use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
+
+class UserRepositoryTest extends KernelTestCase
+{
+    private UserRepository $repository;
+
+    protected function setUp(): void
+    {
+        self::bootKernel();
+        $this->repository = static::getContainer()->get(UserRepository::class);
+    }
+
+    public function testUpgradePasswordUpdatesUser(): void
+    {
+        $em = static::getContainer()->get('doctrine.orm.entity_manager');
+
+        $user = new User();
+        $user->setEmail('test-upgrade-'.uniqid().'@example.com');
+        $user->setFirstName('Test');
+        $user->setLastName('User');
+        $user->setPassword('old-hash');
+        $em->persist($user);
+        $em->flush();
+
+        $this->repository->upgradePassword($user, 'new-hash');
+
+        $em->refresh($user);
+        self::assertSame('new-hash', $user->getPassword());
+    }
+
+    public function testUpgradePasswordThrowsForUnsupportedUser(): void
+    {
+        $this->expectException(UnsupportedUserException::class);
+
+        $fakeUser = new class () implements PasswordAuthenticatedUserInterface {
+            public function getPassword(): ?string
+            {
+                return null;
+            }
+        };
+
+        $this->repository->upgradePassword($fakeUser, 'hash');
+    }
+}