simplify and automate offer creation

api/index.ts

@@ -28,7 +28,8 @@ async function start() {
         events,
     } = createServices(log);
 
-    events.emit(Events.StartupSync);
+    // events.emit(Events.StartupSync);
+    events.emit(Events.ListingsUpdated);
 
     await api.listen();
 }