curl https://api.contazen.ro/v1/clients/1a2b3c4d5e \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY"

{
  "success": true,
  "data": {
    "id": "1a2b3c4d5e",
    "object": "client",
    "name": "Acme Corp SRL",
    "email": "contact@acmecorp.ro",
    "phone": "+40721234567",
    "cui": "RO12345678",
    "rc": "J40/1234/2020",
    "client_type": "b2b",
    "address": "Str. Exemplu nr. 123",
    "city": "București",
    "county": "București",
    "country": "RO",
    "postal_code": "010101",
    "iban": "RO49AAAA1B31007593840000",
    "bank": "BCR",
    "contact_person": "Maria Popescu",
    "created_at": 1704067200,
    "updated_at": 1704153600
  },
  "meta": {
    "version": "v1",
    "response_time": "12.34ms"
  }
}