refactor: migrate loyalty-agent and loyalty-mcp-server components to a new modular structure with updated specs and frontend integration.

src/App.tsx

@@ -0,0 +1,9 @@
+import { ChatLayout } from '@/components/chat/ChatLayout'
+
+function App() {
+  return (
+    <ChatLayout />
+  )
+}
+
+export default App