Visual proof of the branch-and-fan-out story above any other
introduction. The cast shows healthz → recipe listing → pause_ms
from a real BRANCH → the divergent Day-1 itineraries across the
3 hinted children.

Cast URL: https://asciinema.org/a/TsIsceEUXLdyMi7N

Note: the upload was anonymous, so the cast auto-expires 7 days
after upload unless someone with an asciinema.org account
"claims" it. Before this PR merges, the cast should be
re-uploaded from an authenticated CLI so the embed URL is
permanent.