feat: add homeApp to redirect / to the dashboard

Adds an inline app that redirects the root route to the learner
dashboard via getUrlByRouteRole, shared across dev and build configs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: arbrandes

site.config.build.tsx

@@ -1,6 +1,7 @@
 import { EnvironmentTypes, SiteConfig, footerApp, headerApp, shellApp } from '@openedx/frontend-base';
 import { authnApp } from '@openedx/frontend-app-authn';
 import { learnerDashboardApp } from '@openedx/frontend-app-learner-dashboard';
+import homeApp from './src/homeApp';
 
 import './src/site.scss';
 
@@ -19,6 +20,7 @@ const siteConfig: SiteConfig = {
     footerApp,
     authnApp,
     learnerDashboardApp,
+    homeApp,
   ],
   externalRoutes: [
     {

site.config.dev.tsx

@@ -1,6 +1,7 @@
 import { EnvironmentTypes, SiteConfig, footerApp, headerApp, shellApp } from '@openedx/frontend-base';
 import { authnApp } from '@openedx/frontend-app-authn';
 import { learnerDashboardApp } from '@openedx/frontend-app-learner-dashboard';
+import homeApp from './src/homeApp';
 
 import './src/site.scss';
 
@@ -19,6 +20,7 @@ const siteConfig: SiteConfig = {
     footerApp,
     authnApp,
     learnerDashboardApp,
+    homeApp,
   ],
   externalRoutes: [
     {

src/homeApp.tsx

@@ -0,0 +1,19 @@
+import { App } from '@openedx/frontend-base';
+import { getUrlByRouteRole } from '@openedx/frontend-base';
+import { Navigate } from 'react-router';
+
+const homeApp: App = {
+  appId: 'home',
+  routes: [{
+    path: '/',
+    Component: () => {
+      const dashboardUrl = getUrlByRouteRole('org.openedx.frontend.role.dashboard');
+      if (dashboardUrl) {
+        return <Navigate to={dashboardUrl} replace />;
+      }
+      return null;
+    },
+  }],
+};
+
+export default homeApp;