curl --request GET \
  --url http://localhost:3001/api/v1/business/invoices/{id} \
  --header 'x-api-key: <x-api-key>'

{
  "success": true,
  "data": {
    "id": "<string>",
    "businessId": "<string>",
    "invoiceNumber": "INV-0001",
    "status": "DRAFT",
    "amount": 123,
    "currency": "<string>",
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z",
    "customerEmail": "<string>",
    "customerName": "<string>",
    "description": "<string>",
    "lineItems": [
      {
        "description": "<string>",
        "quantity": 123,
        "unitPrice": 123,
        "amount": 123
      }
    ],
    "dueDate": "2023-11-07T05:31:56Z",
    "issuedAt": "2023-11-07T05:31:56Z",
    "paidAt": "2023-11-07T05:31:56Z",
    "reminderSentAt": "2023-11-07T05:31:56Z",
    "signedByName": "<string>",
    "signedAt": "2023-11-07T05:31:56Z"
  }
}