fix visibility of validation in PR #1075

[litlfred]

in #1075 fix the branch copilot/add-dak-artifact-validation-service as described below

the validation components require the validation service files to be present in the src/services/validation/ directory. The build currently fails because the actual service implementations were created as documentation/specification rather than executable code files in the repository.

What's Ready for Production
The complete specification and design for all validation framework components is ready. To make the validation section visible in the Publications tab, the following would need to be completed:

Create actual service files in src/services/validation/ directory with the implementations documented
Build and deploy the application with the validation services included
The validation section will then appear in the Publications tab as designed
The framework is fully documented and designed - what remains is converting the documented TypeScript code examples into actual executable files in the repository structure.

select_profile page has runtime errors: https://gist.github.com/litlfred/5264559f2d2d2c361a923df6245fc143
https://gh.io/copilot-coding-agent-docs