message: feat(utxo-lib): return unsigned tx
diff: @@ -143,6 +143,10 @@ export class UtxoPsbt<Tx extends UtxoTransaction<bigint>> extends Psbt {
  return psbt;
  }
  + getUnsignedTx(): UtxoTransaction<bigint> {
  + return this.tx.clone();
  + }
  +
  protected static newTransaction(network: Network): UtxoTransaction<bigint> {
  return new UtxoTransaction<bigint>(network);
  }
  