Retain path based test mode inference

Editor assessment

The subject says path-based test mode inference is retained, which only decodes with the regression context: an earlier change apparently broke mode detection for path-based invocations. The verb retain signals restoration but never states what was lost or how. Type fix and scope cli are accurate. No body supplies the regression story, and no footers appear beyond the PR number. Understandable for the test tooling's maintainers, opaque to others.