feat(integration) : migrate Gitea/BookStack/Zimbra/Share into module (back)

LST-68 (2.6) backend. Behaviour-preserving move of the external integrations
into src/Module/Integration/. All 26 routes and securities unchanged.

- 5 entities (4 *Configuration singletons + TaskBookStackLink) + 5 repositories
  (Domain interfaces + Doctrine impls, bound). TaskBookStackLink.task now
  references TaskInterface (contract).
- Domain (FileSource interface, SharePathResolver, share DTOs + exceptions);
  Infrastructure (GiteaApiService, BookStackApiService, SmbFileSource, 15
  ApiResources, 21 State, 4 Share controllers).
- Cross-module couplings via abstractions: CalDavService (PM) injects
  ZimbraConfigurationRepositoryInterface; PM TaskDocument consumers repointed
  to the module's FileSource/SharePathResolver; Gitea/BookStack State load
  tasks via TaskRepositoryInterface (concrete Project read for integration
  fields — documented). ZimbraTestConnection keeps CalDavService (no build
  cycle). TokenEncryptor stays shared.
- IntegrationModule registered; doctrine mapping added.
- #[Auditable] + Timestampable on the 4 Configuration entities (additive
  migration on the 4 *_configuration tables).

163 tests green, container compiles (no cycle), no route regression, cs-fixer clean.

src/Module/Integration/Infrastructure/ApiPlatform/State/GiteaSettingsProcessor.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Module\Integration\Infrastructure\ApiPlatform\State;
+
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProcessorInterface;
+use App\Module\Integration\Domain\Entity\GiteaConfiguration;
+use App\Module\Integration\Domain\Repository\GiteaConfigurationRepositoryInterface;
+use App\Module\Integration\Infrastructure\ApiPlatform\Resource\GiteaSettings;
+use App\Service\TokenEncryptor;
+use Doctrine\ORM\EntityManagerInterface;
+
+final readonly class GiteaSettingsProcessor implements ProcessorInterface
+{
+    public function __construct(
+        private EntityManagerInterface $em,
+        private GiteaConfigurationRepositoryInterface $configRepository,
+        private TokenEncryptor $tokenEncryptor,
+    ) {}
+
+    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): GiteaSettings
+    {
+        assert($data instanceof GiteaSettings);
+
+        $config = $this->configRepository->findSingleton();
+        if (null === $config) {
+            $config = new GiteaConfiguration();
+        }
+
+        $config->setUrl($data->url);
+
+        if (null !== $data->token && '' !== $data->token) {
+            $config->setEncryptedToken($this->tokenEncryptor->encrypt($data->token));
+        }
+
+        $this->em->persist($config);
+        $this->em->flush();
+
+        $result           = new GiteaSettings();
+        $result->url      = $config->getUrl();
+        $result->hasToken = $config->hasToken();
+
+        return $result;
+    }
+}