legacy login refactor

apps/mobile_app/lib/navigation/app_router.dart

@@ -1,6 +1,7 @@
 import 'package:account/account.dart';
 import 'package:activity/activity.dart';
 import 'package:auth/auth.dart';
+import 'package:legacy_auth/legacy_auth.dart';
 import 'package:customer_service/customer_service.dart';
 import 'package:dashboard_shell/dashboard_builder.dart';
 import 'package:device_management/device_management.dart';
@@ -23,7 +24,7 @@ late final GoRouter appRouter;
 void configureAppRouter() {
   appRouter = GoRouter(
     navigatorKey: rootNavigatorKey,
-    initialLocation: AppRoutes.splash,
+    initialLocation: AppRoutes.legacyLogin,
     debugLogDiagnostics: true,
     routes: [
       GoRoute(
@@ -153,6 +154,41 @@ void configureAppRouter() {
         name: 'device_setup',
         pageBuilder: DeviceSetupBuilder().buildPage,
       ),
+      GoRoute(
+        path: AppRoutes.legacyLogin,
+        name: 'legacy_login',
+        pageBuilder: LegacyLoginBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacySignup,
+        name: 'legacy_signup',
+        pageBuilder: LegacySignupBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacyOnboarding,
+        name: 'legacy_onboarding',
+        pageBuilder: LegacyOnboardingBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacyLinkPhone,
+        name: 'legacy_request_link_phone',
+        pageBuilder: LegacyRequestLinkPhoneBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacyPhoneCode,
+        name: 'legacy_verify_link_phone_code',
+        pageBuilder: LegacyVerifyLinkPhoneCodeBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacyRecoverPassword,
+        name: 'legacy_recover_password',
+        pageBuilder: LegacyRequestRecoveryBuilder().buildPage,
+      ),
+      GoRoute(
+        path: AppRoutes.legacyDeviceSetup,
+        name: 'legacy_device_setup',
+        pageBuilder: LegacyDeviceSetupBuilder().buildPage,
+      ),
       GoRoute(
         path: AppRoutes.hipayWebView,
         name: 'hipay_webview',