CreateTransactionRequest

{
    "ledger_id": "c2b5d3b8-6f5e-4b34-9c9b-2a5e2c1f7a10",
    "reference_id": "ref-transfer-001",
    "currency": "CLP",
    "description": "Pago de servicio",
    "operations": [
        {
            "account_id": "4f5a2d7a-4c1e-4f2a-9e9a-1234567890ab",
            "direction": "DEBIT",
            "amount": "1500.00"
        },
        {
            "account_id": "4f5a2d7a-4c1e-4f2a-9e9a-1234567890ab",
            "direction": "DEBIT",
            "amount": "1500.00"
        }
    ],
    "metadata": {
        "external_id": "ext-789",
        "payment_method": "bank_transfer"
    }
}