Fix change output and default locking script function

src/services/app.ts

@@ -19,6 +19,7 @@ import { EventEmitter } from "../utils/event-emitter.js";
 import { createHash } from "crypto";
 import { p2pkhTemplate } from "@xo-cash/templates";
 import { hexToBin } from "@bitauth/libauth";
+import { parseTemplate } from "@xo-cash/engine";
 
 export type AppEventMap = {
   "invitation-added": Invitation;
@@ -95,7 +96,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     // To my knowledge, this doesnt generate any lockscript, so discovery of funds will not work automatically.
     // TODO: Add discovery for funds in the first index? Or until we return 0 TXs?
     await engine.setDefaultLockingParameters(
-      generateTemplateIdentifier(p2pkhTemplate),
+      generateTemplateIdentifier(parseTemplate(p2pkhTemplate)),
       "receiveOutput",
       "receiver",
     );