pub async fn ensure_jetstream_resources(js: &Context) -> Result<()>Expand description
Idempotently create every NATS JetStream resource the kanade
fleet relies on. Calling repeatedly is safe — create_* returns
the existing resource if it’s already configured.
Returns once every resource is in place. The function is async
so backends can await it as part of their startup sequence
(one round-trip per resource — ~10 RTTs total).