Import Sales

Sales imports enter the sales inbox. Stock is not deducted immediately at ingest time.

POST /api/v1/sales/imports

{
  "external_order_id": "ORDER-1001",
  "ordered_at": "2026-05-06T10:00:00Z",
  "lines": [
    { "sku": "TEST-SKU-001", "quantity": 1 }
  ]
}

Unprocessable sales are expected where listing/SKU mapping is incomplete. They should be reviewed rather than silently ignored.