Teams setup is 6+ Azure steps over 30+ minutes. Today, every
"Done / Stuck / Show again" gate forces continuation; the only escape
is Ctrl-C, which kills setup entirely. Add a fourth option at each gate
that returns to the channel picker so a stuck operator can pick a
different channel without losing the rest of setup.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>