/campaigns was a redirect to / (the curated home), and the actual
all-campaigns directory lived at /campaigns/all. Flip the routing
so /campaigns IS the directory, the home page stays at /, and
/campaigns/all becomes a redirect to /campaigns for any external
links and bookmarks that still point there.
Rewrite every internal link/navigate target accordingly (TopNav,
the Browse-all CTA on the home page, the OnboardingGate donor
redirect, NoteCard's kind-33863 nounRoute) and refresh the
doc/comment references in NIP.md and the discovery hooks.
mkfain
c53e476dee