feat(abstract-utxo): extend DecodedTransaction to include wasm-utxo BitGoPsbt

Issue: BTC-2806

Co-authored-by: llm-git <[email protected]>

Author: OttoAllmendinger

modules/abstract-utxo/src/transaction/types.ts

@@ -1,4 +1,5 @@
 import * as utxolib from '@bitgo/utxo-lib';
+import { fixedScriptWallet } from '@bitgo/wasm-utxo';
 
 import type { UtxoNamedKeychains } from '../keychains';
 
@@ -8,7 +9,8 @@ export type SdkBackend = 'utxolib' | 'wasm-utxo';
 
 export type DecodedTransaction<TNumber extends number | bigint> =
   | utxolib.bitgo.UtxoTransaction<TNumber>
-  | utxolib.bitgo.UtxoPsbt;
+  | utxolib.bitgo.UtxoPsbt
+  | fixedScriptWallet.BitGoPsbt;
 
 export interface BaseOutput<TAmount = string | number> {
   address: string;