Add ai-plan ingest that stores one current booked fact per
provider-account × plan × period. Subscriptions become recurring
commitments; usage top-ups do not. Session-level rows are rejected.
Record the FIN-WP-0007 split after checking resource-control: they keep
intelligence resource identity and provision-level class I metering;
session tokens stay with State Hub; work-effectiveness is a reporting
join. Missing token counts are now unknown, not zero.
