CUB-122: Scaffold Control Center React frontend

frontend/src/App.tsx

@@ -0,0 +1,23 @@
+import { Routes, Route } from 'react-router-dom'
+import Layout from './components/Layout'
+import HubPage from './pages/HubPage'
+import LogsPage from './pages/LogsPage'
+import ProjectsPage from './pages/ProjectsPage'
+import SessionsPage from './pages/SessionsPage'
+import SettingsPage from './pages/SettingsPage'
+
+function App() {
+  return (
+    <Layout>
+      <Routes>
+        <Route path="/" element={<HubPage />} />
+        <Route path="/logs" element={<LogsPage />} />
+        <Route path="/projects" element={<ProjectsPage />} />
+        <Route path="/sessions" element={<SessionsPage />} />
+        <Route path="/settings" element={<SettingsPage />} />
+      </Routes>
+    </Layout>
+  )
+}
+
+export default App