Package the GitHub onboarding wizard in the normal SkillEvaluator distribution, with immutable scanner and publisher pins, compact interactive prompts, setup/status/demo commands, and clear CLI or manual documentation paths.

Verify real public/private GitHub and GitLab consumer runs, fresh wheel/source installations, and the required platform checks. Publish 0.7.1 and its CI starter bundle after merging this reviewed release source.

Signed-off-by: Christopher Kevin <christopherk@nvidia.com>