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/user/user.module.ts

@@ -0,0 +1,22 @@
+import { Module, Global } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { User } from './user.entity';
+import { UserSetting } from './user-setting.entity';
+import { UserSettingService } from './user-setting.service';
+import { TenantMember } from '../tenant/tenant-member.entity';
+import { ApiKey } from '../auth/entities/api-key.entity';
+import { UserService } from './user.service';
+import { UserController } from './user.controller';
+import { TenantModule } from '../tenant/tenant.module';
+
+@Global()
+@Module({
+  imports: [
+    TypeOrmModule.forFeature([User, ApiKey, TenantMember, UserSetting]),
+    TenantModule,
+  ],
+  controllers: [UserController],
+  providers: [UserService, UserSettingService],
+  exports: [UserService, UserSettingService],
+})
+export class UserModule {}