fix(onboard): fall back to default CDI spec dirs when docker info reports none - #7347

This fork PR diff (head ea35cb7, base b9c82f1) selected credential-bearing E2E checks (jobs: onboard-repair, onboard-resume).

The selected jobs and targets were not run. No fork code received repository secrets.

Open E2E / PR Gate Controller run 30120003754, choose Review deployments, and approve the approve-credentialed-e2e-skip-for-fork-pr environment to record this skip. If Review deployments is absent, the environment is unprotected or the run is no longer waiting; configure it, update the PR to create a new head, and trigger fresh PR CI. GitHub records the reviewer and optional comment. The manual approve-fork-e2e-skip workflow operation remains available as fallback.