## Goal Persist normalized usage events for every completed gateway request. ## Acceptance Criteria - [ ] Usage event records request id, user, key, provider, route, model, status, latency, and token counts. - [ ] Upstream usage metadata is trusted when available. - [ ] Estimated usage is marked explicitly. - [ ] User and admin usage endpoints can query recorded events.
Goal
Persist normalized usage events for every completed gateway request.
Acceptance Criteria