redshift serverless query editor

Based on the available information, while AWS CDK does provide constructs for configuring Amazon Redshift Serverless workgroups and their parameters, there is no direct CDK support specifically for configuring the Query Editor V2 itself.

The Query Editor V2 is a browser-based tool that you access through the AWS Management Console. When you launch it from the Amazon Redshift Serverless console, it opens in a new browser tab and connects to your Redshift Serverless environment. The configuration of Query Editor V2 primarily involves setting up appropriate AWS account permissions and KMS key configurations, which are typically done through IAM policies and console settings rather than through CDK constructs.

However, you can use CDK to configure the underlying Redshift Serverless infrastructure that Query Editor V2 connects to, including workgroup parameters and configurations. CDK provides the ability to set various configuration parameters for Redshift Serverless workgroups, such as query monitoring metrics and other database control settings, but the Query Editor V2 tool itself is managed separately through the AWS Console and account-level configurations.
Sources
Get started with Amazon Redshift Serverless data warehouses - Amazon Redshift
interface ConfigParameterProperty · AWS CDK

Currently there is no direct CDK support for Query Editor V2 - Its a browser based console tool. You can still configure the underlying RedShift Serverless workgroup and KMS key with CDK using RedShiftServerless.CfnWorkgroup and Kms.Cfnkey.