The getter returns the local leafnode listener URL — what remote leaves dial as their upstream. The name LeafUpstream collided with Config.LeafUpstream (the input URL THIS hub solicits to), making the API read backwards: same word, opposite directions on the same struct family.

LeafURL is symmetric with the existing NATSURL() and matches the data: "the URL of my leaf listener". Config.LeafUpstream stays — that's correctly named on the input side.

Mechanical changes: - (h *Hub) LeafUpstream() → (h *Hub) LeafURL() - private field h.leafUpstream → h.leafURL - hub_test.go callers updated - cli/hub_serve.go log key "leaf_upstream" → "leaf_url"

No callers outside this repo in the v0.0.16 dependency graph (bones pins v0.0.16). Downstream consumers on a local replace (sesh) get a one-line update.

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> check-in: 385682e7ce user: [email protected] tags: trunk