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

web/.marscode/deviceInfo.json

@@ -0,0 +1,3 @@
+{
+  "deviceId": "ed82e87006e058c331c9aa377c98736db271e2f339d3613c715eb07cf69358fc"
+}