feat: wire up loyalty + chat — register routes, API types, connect LoyaltyPage, add ChatWidget to layout

src/layouts/AppLayout.tsx

@@ -2,6 +2,7 @@ import { Outlet, Navigate } from 'react-router-dom'
 import { useState } from 'react'
 import { Sidebar } from '../components/layout/Sidebar'
 import { Topbar } from '../components/layout/Topbar'
+import { ChatWidget } from '../components/chat/ChatWidget'
 import { useAuth } from '../contexts/AuthContext'
 
 export function AppLayout() {
@@ -20,6 +21,8 @@ export function AppLayout() {
           <Outlet />
         </main>
       </div>
+
+      <ChatWidget />
     </div>
   )
 }