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

.claude/settings.local.json

@@ -0,0 +1,9 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(git add *)",
+      "Bash(git commit -q -m ' *)",
+      "Bash(git push *)"
+    ]
+  }
+}