Wraps show/persona/schedule/trigger calls that were previously done by
hand with raw docker exec curl, and documents the gotchas hit tonight
(whole-object PUT/POST semantics, the frequency enum, the silent
default-persona trap, and the port-not-published-to-host setup).
Claude-Session: https://claude.ai/code/session_01HZQK6jHmdTpFjFZM8FUnqA
