/**
 * Outbox rows are written in the same local transaction as every business
 * change from the FIRST local-only build (D14): dormant until the cloud tier
 * exists, at which point a sync agent drains them. Cloud enablement must be a
 * switch-on, never a data migration.
 */
export interface OutboxRow {
  opId: string // uuidv7 — the idempotency key
  tenantId: string
  deviceId: string
  deviceSeq: number
  docType: string
  docId: string
  /** Whole-document changeset envelope — row-level sync is forbidden by design. */
  envelope: unknown
  createdAtWallClock: string
  lamport: number
}