curl --request GET \
  --url https://api.contazen.ro/v1/invoices \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "object": "list",
    "has_more": true,
    "total": 123,
    "page": 123,
    "per_page": 123,
    "total_pages": 123,
    "data": [
      {
        "id": "inv_1a2b3c4d5e",
        "object": "invoice",
        "number": "<string>",
        "series": "<string>",
        "date": "2023-12-25",
        "total": 123,
        "full_number": "<string>",
        "due_date": "2023-12-25",
        "client_id": "<string>",
        "client": {
          "id": "cli_1a2b3c4d5e",
          "object": "client",
          "name": "<string>",
          "email": "jsmith@example.com",
          "phone": "<string>",
          "cui": "<string>",
          "cui_prefix": "<string>",
          "rc": "<string>",
          "address": "<string>",
          "city": "<string>",
          "county": "<string>",
          "country": "<string>",
          "postal_code": "<string>",
          "iban": "<string>",
          "bank": "<string>",
          "contact_person": "<string>",
          "created_at": 123,
          "updated_at": 123,
          "metadata": {
            "invoices_count": 123,
            "total_invoiced": 123,
            "unpaid_total": 123
          },
          "stats": {
            "total_invoiced": 123,
            "total_collected": 123,
            "avg_payment_days": 123,
            "last_payment": {
              "date": 123,
              "amount": 123,
              "currency": "<string>",
              "bill_id": "<string>",
              "bill_number": "<string>"
            },
            "monthly_series": [
              {
                "label": "Mar 2026",
                "year": 123,
                "month": 123,
                "invoiced": 123,
                "collected": 123
              }
            ]
          }
        },
        "currency": "RON",
        "exchange_rate": 123,
        "subtotal": 123,
        "vat_amount": 123,
        "subtotal_ron": 123,
        "vat_amount_ron": 123,
        "total_ron": 123,
        "items": [
          {
            "description": "<string>",
            "quantity": 123,
            "price": 123,
            "id": 123,
            "product_id": "<string>",
            "description_extended": "<string>",
            "vat_rate": 19,
            "vat_key": 123,
            "unit": "buc",
            "ubl_um": "H87",
            "ubl_nc": "<string>",
            "ubl_cpv": "<string>",
            "subtotal": 123,
            "vat_amount": 123,
            "total": 123,
            "save_as_product": true
          }
        ],
        "payments": [
          {
            "id": "<string>",
            "object": "payment",
            "amount": 123,
            "currency": "<string>",
            "date": "2023-12-25",
            "type_description": "<string>",
            "reference": "<string>",
            "invoice": {
              "id": "<string>",
              "number": "<string>",
              "total": 123,
              "currency": "<string>"
            },
            "receipt": {
              "id": "<string>",
              "number": "<string>"
            },
            "client": {
              "id": "<string>",
              "name": "<string>"
            },
            "created_at": 123
          }
        ],
        "is_paid": true,
        "paid_at": "2023-12-25",
        "is_void": true,
        "voided_at": "2023-11-07T05:31:56Z",
        "void_reason": "<string>",
        "is_draft": true,
        "is_storno": true,
        "storno_for": "<string>",
        "payment_method": "<string>",
        "notes": "<string>",
        "observations": "<string>",
        "efactura_enabled": true,
        "efactura_submission_id": "<string>",
        "created_at": "2023-11-07T05:31:56Z",
        "modified_at": "2023-11-07T05:31:56Z"
      }
    ],
    "totals": {
      "subtotal": 1380871.63,
      "vat": 192519.84,
      "total": 1573391.47,
      "paid": 1450000,
      "unpaid": 123391.47
    }
  },
  "meta": {
    "version": "v1",
    "request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "response_time": "23.45ms"
  }
}