feat: implement QuestionBank CRUD with pagination and template query

- Add pagination support to findAll (page, limit query params)
- Add findByTemplateId method to service
- Add GET /by-template/:templateId endpoint to controller
- Service already includes CRUD for QuestionBank and QuestionBankItem

libreoffice-server/package.json

@@ -0,0 +1,8 @@
+{
+    "name": "md-to-pdf-service",
+    "version": "1.0.0",
+    "dependencies": {
+        "marked": "^11.1.1",
+        "puppeteer": "^21.7.0"
+    }
+}