feat: Basic trip planner agent

agent/uis/trip-planner/restaurants-list/index.tsx

@@ -0,0 +1,9 @@
+import { TripDetails } from "../../../trip-planner/types";
+
+export default function RestaurantsList({
+  tripDetails,
+}: {
+  tripDetails: TripDetails;
+}) {
+  return <div>Restaurants list for {JSON.stringify(tripDetails)}</div>;
+}