Skip to main content
  • Append-only fee_ledger with status state machine
  • Unique invoice per period (invoices_instance_period index)
  • Secure session (passkey re-auth) for all financial mutations
  • Non-blocking fee collection — cheques work even if fees fail
  • Atomic invoice number generation via JSONB sequence
  • Multi-tenant isolation — all financial queries include instance_id
  • CSV export for external accounting
  • On-chain collection with atomic lock (FOR UPDATE SKIP LOCKED)