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

server/src/migrations/1739260000000-RemoveSupportsVisionColumn.ts

@@ -0,0 +1,20 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class RemoveSupportsVisionColumn1739260000000 implements MigrationInterface {
+  name = 'RemoveSupportsVisionColumn1739260000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    // Remove supportsVision column from model_configs table
+    // This column is no longer needed as we now use ModelType.VISION instead
+    await queryRunner.query(`
+      ALTER TABLE "model_configs" DROP COLUMN "supportsVision"
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    // Restore supportsVision column in case of rollback
+    await queryRunner.query(`
+      ALTER TABLE "model_configs" ADD COLUMN "supportsVision" boolean NOT NULL DEFAULT 0
+    `);
+  }
+}