Upsert Professional Details

curl -X POST 'http://localhost:9000/admin/sellers/sel_01HXYZABCDEF/professional-details' \
  -H 'Authorization: Bearer <token>' \
  -H 'Content-Type: application/json' \
  -d '{
    "corporate_name": "Acme GmbH",
    "registration_number": "HRB 123456",
    "tax_id": "DE123456789"
  }'

const { seller } = await client.admin.sellers.$id.professionalDetails.mutate({
  $id: "sel_01HXYZABCDEF",
  corporate_name: "Acme GmbH",
  registration_number: "HRB 123456",
  tax_id: "DE123456789",
})

{
  "seller": {
    "id": "sel_01HXYZABCDEF",
    "name": "Acme",
    "status": "open",
    "professional_details": {
      "corporate_name": "Acme GmbH",
      "registration_number": "HRB 123456",
      "tax_id": "DE123456789"
    },
    "updated_at": "2026-06-12T11:30:00.000Z"
  }
}