wired dummy messaging to use svelte stores.

src/lib/services/messages.js

@@ -0,0 +1,11 @@
+// src/lib/messaging.js
+import { messagesStore } from '$lib/data//stores';
+
+export function addMessage(message) {
+  const timestamp = new Date().toLocaleString();
+  messagesStore.update((messages) => [{ text: message, timestamp }, ...messages]);
+}
+
+export function clearMessages() {
+  messagesStore.set([]);
+}