Add auto-generated export descriptions and helper service

Introduce `ExportDescriptionHelper` to dynamically generate default descriptions for exports based on current settings. Update controllers, templates, and test cases to support and display the new auto-generated descriptions. This also adds a warning in the UI to prompt users to adjust these descriptions as needed.

src/Bundle/ChillMainBundle/Export/ExportDescriptionHelper.php

@@ -0,0 +1,74 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Export;
+
+use Chill\MainBundle\Entity\User;
+use Symfony\Component\Security\Core\Security;
+use Symfony\Contracts\Translation\TranslatableInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+/**
+ * Give an explanation of an export.
+ */
+final readonly class ExportDescriptionHelper
+{
+    public function __construct(
+        private ExportManager $exportManager,
+        private ExportConfigNormalizer $exportConfigNormalizer,
+        private ExportConfigProcessor $exportConfigProcessor,
+        private TranslatorInterface $translator,
+        private Security $security,
+    ) {}
+
+    /**
+     * @return list<string>
+     */
+    public function describe(string $exportAlias, array $exportOptions, bool $includeExportTitle = true): array
+    {
+        $output = [];
+        $denormalized = $this->exportConfigNormalizer->denormalizeConfig($exportAlias, $exportOptions);
+        $user = $this->security->getUser();
+
+        if ($includeExportTitle) {
+            $output[] = $this->trans($this->exportManager->getExport($exportAlias)->getTitle());
+        }
+
+        if (!$user instanceof User) {
+            return $output;
+        }
+        $context = new ExportGenerationContext($user);
+
+        foreach ($this->exportConfigProcessor->retrieveUsedFilters($denormalized['filters']) as $name => $filter) {
+            $output[] = $this->trans($filter->describeAction($denormalized['filters'][$name]['form'], $context));
+        }
+
+        foreach ($this->exportConfigProcessor->retrieveUsedAggregators($denormalized['aggregators']) as $name => $aggregator) {
+            $output[] = $this->trans($aggregator->getTitle());
+        }
+
+        return $output;
+    }
+
+    private function trans(string|TranslatableInterface|array $translatable): string
+    {
+        if (is_string($translatable)) {
+            return $this->translator->trans($translatable);
+        }
+
+        if ($translatable instanceof TranslatableInterface) {
+            return $translatable->trans($this->translator);
+        }
+
+        // array case
+        return $this->translator->trans($translatable[0], $translatable[1] ?? []);
+    }
+}