Verify the unit-test workflow locally and in CI

### Description

Verify that contributors and CI can run the unit-test suite reliably, failures are actionable, and the documented workflow is accurate.

### Action Items

- [ ] Run the suite locally using the documented command.
- [ ] Validate expected failure reporting.
- [ ] Confirm CI integration or document the remaining CI work.
- [ ] Update guidance with verification results.

### Additional Information

Parent Epic: https://github.com/hackforla/lucky-parking/issues/732

Start with the repository's documented unit-test command and run the unit-test suite locally, then inspect the CI integration and its failure reporting. Verify that the workflow is reliable and actionable; document the verification results and any remaining CI work in the project guidance.

Written by the indexing model from the issue text.