Rate-card-versioned receipts and receipt export
Every settled request now returns a receipt pinned to an explicit rate-card version, so historical spend can be re-audited against the exact prices in force at execution time.
- Receipts carry a rate-card version field on every settled request.
- Receipt export for tenant-scoped date ranges is available from the console.
- Verification status is displayed alongside usage on the request detail view.
Deprecation. CSV receipt export (?format=csv) sunsets on 2026-10-01. Use the JSON receipt export, which includes the rate-card version and verification status fields.