
I'm using CircleCI's `circleci onboard` flow but no tests were detected in my project.

Project stack: (could not detect)
Image: (none — stack not detected)

Please help me set up a basic test suite. Suggest:
  • The recommended test framework for this stack
  • The conventional file/folder structure for tests
  • A starter test file I can use to verify the setup works

Once I have tests, I will re-run `circleci onboard` to continue.
