Syncs with jennyf19/the-workshop PR #8 (merged). Adds the
workshop-create skill with Path A (existing dir) and Path B
(new GitHub repo), explicit guard against repo-in-repo nesting.
TA agent updated with workshop-create section.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 26faf13e-639c-4a21-ac05-c0dc2bff7c62