Redirect root to profile home

- send / through the configured profile home page
- keep the router regression test in sync with the redirect
- preserve the legacy shell fallback for non-router bootstrap

webui/src/app/router.test.tsx

@@ -134,4 +134,22 @@ describe('createAppRouter', () => {
 
     expect(history.location.pathname).toBe('/discover');
   });
+
+  it('redirects the root route to the profile home page', async () => {
+    window.SoulSyncWebShellBridge = createShellBridge({
+      getProfileHomePage: vi.fn<() => ShellPageId>(() => 'search'),
+    });
+
+    const queryClient = createAppQueryClient();
+    const history = createMemoryHistory({ initialEntries: ['/'] });
+    const router = createAppRouter({ history, queryClient });
+
+    render(<AppRouterProvider router={router} queryClient={queryClient} />);
+
+    await waitFor(() => {
+      expect(window.SoulSyncWebShellBridge?.activateLegacyPath).toHaveBeenCalledWith('/search');
+    });
+
+    expect(history.location.pathname).toBe('/search');
+  });
 });

webui/src/routes/index.tsx

@@ -1,8 +1,15 @@
-import { createFileRoute } from '@tanstack/react-router';
+import { createFileRoute, redirect } from '@tanstack/react-router';
 
+import { getProfileHomePath } from '@/platform/shell/bridge';
 import { LegacyRouteController } from '@/platform/shell/route-controllers';
 
 export const Route = createFileRoute('/')({
+  beforeLoad: ({ context }) => {
+    const bridge = context.platform.getShellBridge();
+    if (!bridge) return;
+
+    throw redirect({ href: getProfileHomePath(bridge), replace: true });
+  },
   component: IndexRouteComponent,
 });