List the event catalog
Returns the manifest-fed catalog snapshot — the last-known-good aggregation of the producer manifests Streaming Hub tracks. The catalog is global in v1 (byte-identical regardless of which tenant authenticates) and control-plane only; the data plane never consults it. An empty snapshot returns 200 with events: [] (fail-closed to last-known-good — never an error on an empty catalog).
Authorizations
A bearer JWT issued by plugin-auth (lib-auth). The tenant identity is resolved from the validated token claims; the /v1 surface never reads a tenant from the body, path, or query. Machine callers obtain a token via the plugin-auth client-credentials flow. The /admin surface authorizes against an operator scope and carries no tenant context.
Response
The catalog snapshot.
The catalog entries in deterministic (topic, schemaMajor, eventType) order. Empty when the snapshot is empty.
Per topic, the set of distinct schema-major values present in the snapshot, each ascending. An empty object when the snapshot is empty.

