- Allowed the priority premium-request fixture to set assistant message `api` values. - Covered direct Anthropic priority traffic with `api: "anthropic-messages"` so premium-request backfill follows API-family classification.
- Allowed the priority premium-request fixture to set assistant message `api` values. - Covered direct Anthropic priority traffic with `api: "anthropic-messages"` so premium-request backfill follows API-family classification.