- Wire relay handler to increment_usage() for JSON responses (tokens + relay_requests)
- Wire relay handler to increment_dimension("relay_requests") for SSE streams
- Add increment_dimension() function for hand_executions/pipeline_runs dimensions
- Schedule AggregateUsageWorker hourly for reconciliation (run_on_start=true)
- Mount mock payment routes in dev mode (ZCLAW_SAAS_DEV=true)
Previously the quota middleware always allowed requests because usage
counters were never incremented. Now relay requests update billing_usage_quotas
in real-time, with the aggregator providing hourly reconciliation.
11e3d37468