Add survey question drag-sort and backend assets

- Frontend editor: drag-to-sort questions with dedicated sort assets/JS
- Backend list/search refinements for tl_survey and tl_survey_content
- Repository helpers for survey/question/editor queries
- Translations and AI handover notes update

src/Service/SurveyEditorService.php

@@ -97,6 +97,16 @@ final class SurveyEditorService
         $this->surveyRepository->touch((int) $survey->id);
     }
 
+    /**
+     * @param list<int> $orderedQuestionIds
+     */
+    public function reorderQuestions(SurveyModel $survey, array $orderedQuestionIds): void
+    {
+        $this->assertUnlocked($survey);
+        $this->surveyQuestionRepository->reorderQuestions((int) $survey->id, $orderedQuestionIds);
+        $this->surveyRepository->touch((int) $survey->id);
+    }
+
     public function deleteSurvey(SurveyModel $survey): void
     {
         $this->surveyRepository->deleteCascade((int) $survey->id);
@@ -108,8 +118,9 @@ final class SurveyEditorService
             $sourceSurveyId = (int) $survey->id;
             $memberIds = $this->surveyEditorRepository->findMemberIdsBySurvey($sourceSurveyId);
             $duplicate = $this->surveyRepository->create($actorMemberId ?? (int) ($survey->createdBy ?? 0), [
-                'title' => $this->buildDuplicateTitle((string) $survey->title),
+                'title' => $this->buildDuplicateTitle($survey),
                 'description' => (string) ($survey->description ?? ''),
+                'internalNote' => (string) ($survey->internalNote ?? ''),
                 'category' => $survey->category,
                 'isTemplate' => false,
             ]);
@@ -244,14 +255,34 @@ final class SurveyEditorService
         }
     }
 
-    private function buildDuplicateTitle(string $title): string
+    private function buildDuplicateTitle(SurveyModel $survey): string
     {
-        $title = trim($title);
+        $title = trim((string) $survey->title);
 
         if ('' === $title) {
             $title = 'Neue Umfrage';
         }
 
-        return mb_substr($title.' - Kopie', 0, 255);
+        $baseTitle = trim((string) preg_replace('/ - Kopie(?: \d+)?$/u', '', $title));
+
+        if ('' === $baseTitle) {
+            $baseTitle = 'Neue Umfrage';
+        }
+
+        for ($copyNumber = 1; ; ++$copyNumber) {
+            $suffix = 1 === $copyNumber ? ' - Kopie' : sprintf(' - Kopie %d', $copyNumber);
+            $candidate = $this->buildDuplicateTitleCandidate($baseTitle, $suffix);
+
+            if (!$this->surveyRepository->titleExists($candidate, (int) $survey->id)) {
+                return $candidate;
+            }
+        }
+    }
+
+    private function buildDuplicateTitleCandidate(string $baseTitle, string $suffix): string
+    {
+        $maxBaseLength = max(0, 255 - mb_strlen($suffix));
+
+        return mb_substr($baseTitle, 0, $maxBaseLength).$suffix;
     }
 }