Use xo-cash/utils sse. Add vending machine template. Greatly improve startup times.

src/services/app.ts

@@ -18,10 +18,13 @@ import { EventEmitter } from "../utils/event-emitter.js";
 
 // TODO: Remove this. Exists to hash the seed for database namespace.
 import { createHash } from "crypto";
-import { p2pkhTemplate } from "@xo-cash/templates";
 import { hexToBin } from "@bitauth/libauth";
 import { parseTemplate } from "@xo-cash/engine";
 
+import { p2pkhTemplate } from "@xo-cash/templates";
+import { vendingMachineTemplate } from "../templates/vending-machine.js";
+import { wrapBCHTemplate } from "../templates/wrap-template.js";
+
 export type AppEventMap = {
   "invitation-added": Invitation;
   "invitation-removed": Invitation;
@@ -53,6 +56,12 @@ export class AppService extends EventEmitter<AppEventMap> {
   public settings: SettingsService;
 
   public invitations: Invitation[] = [];
+  /**
+   * Incremented whenever the invitation list or any invitation's data/status changes.
+   * Used by TUI hooks so useSyncExternalStore snapshots change on in-place mutations.
+   */
+  public invitationsRevision = 0;
+  private invitationRevisions = new Map<string, number>();
   private invitationEventCleanup = new Map<
     string,
     {
@@ -82,7 +91,9 @@ export class AppService extends EventEmitter<AppEventMap> {
     // TODO: We *technically* dont want this here, but we also need some initial templates for the wallet, so im doing it here
     // Import the default P2PKH template
     await engine.importTemplate(p2pkhTemplate);
-    
+    await engine.importTemplate(vendingMachineTemplate);
+    await engine.importTemplate(wrapBCHTemplate);
+
     // Update all the unspents for every template, and subscribe to the locking bytecodes for changes
     // TODO: Remove the above lines that do the same thing. Minimising changes for BLISS.
     const updateTemplates = async () => {
@@ -160,8 +171,9 @@ export class AppService extends EventEmitter<AppEventMap> {
     // Create the invitation
     const invitationInstance = await Invitation.create(invitation, deps);
 
-    // Add the invitation to the invitations array
+    // Attach listeners before SSE connects so updates are not missed.
     await this.addInvitation(invitationInstance);
+    await invitationInstance.start();
 
     return invitationInstance;
   }