Phase 3 Complete by Claude Code

frontend/src/App.jsx

@@ -6,6 +6,9 @@ import MelodyList from "./melodies/MelodyList";
 import MelodyDetail from "./melodies/MelodyDetail";
 import MelodyForm from "./melodies/MelodyForm";
 import MelodySettings from "./melodies/MelodySettings";
+import DeviceList from "./devices/DeviceList";
+import DeviceDetail from "./devices/DeviceDetail";
+import DeviceForm from "./devices/DeviceForm";
 
 function ProtectedRoute({ children }) {
   const { user, loading } = useAuth();
@@ -55,8 +58,11 @@ export default function App() {
         <Route path="melodies/new" element={<MelodyForm />} />
         <Route path="melodies/:id" element={<MelodyDetail />} />
         <Route path="melodies/:id/edit" element={<MelodyForm />} />
-        {/* Phase 3+ routes:
         <Route path="devices" element={<DeviceList />} />
+        <Route path="devices/new" element={<DeviceForm />} />
+        <Route path="devices/:id" element={<DeviceDetail />} />
+        <Route path="devices/:id/edit" element={<DeviceForm />} />
+        {/* Phase 4+ routes:
         <Route path="users" element={<UserList />} />
         <Route path="mqtt" element={<MqttDashboard />} />
         */}