Defines kind:44200 — a regular stored event, one per completed agent turn,
NIP-44 encrypted agent-to-owner and #p-gated like NIP-AO telemetry, carrying
per-turn and cumulative token/cost usage so owners can account for agent
token consumption across harnesses without relaying transcript content.
Co-authored-by: Will Pfleger <pfleger.will@gmail.com>
Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
