feat: integrate Umami analytics for screen tracking via GoRouter observers

lib/core/analytics/umami_analytics.dart

@@ -0,0 +1,25 @@
+import 'package:flutter_estatisticas/umami_service.dart';
+import 'package:flutter_estatisticas/umami_navigation_observer.dart';
+
+/// Umami analytics singleton. Configured once at app startup.
+///
+/// Reuses the same `website` ID as the web app (re-quest.com) so all traffic
+/// (web + mobile) aggregates under one dashboard. `hostname` differentiates
+/// mobile vs. web inside Umami.
+class UmamiAnalytics {
+  UmamiAnalytics._();
+
+  static const _endpoint = 'https://analytics.superlabs.co';
+  static const _websiteId = '00e1ce31-e174-4519-8b59-63e8d4556b01';
+  static const _hostname = 're-quest-mobile.app';
+
+  static final UmamiService service = UmamiService(
+    endpoint: _endpoint,
+    website: _websiteId,
+    hostname: _hostname,
+  );
+
+  /// Navigator observer that auto-tracks screen transitions in GoRouter.
+  static final UmamiNavigationObserver navigationObserver =
+      UmamiNavigationObserver(service);
+}

lib/routing/app_router.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
+import 'package:real_estate_mobile/core/analytics/umami_analytics.dart';
 import 'package:real_estate_mobile/core/constants/app_colors.dart';
 import 'package:real_estate_mobile/core/widgets/app_shell.dart';
 import 'package:real_estate_mobile/features/auth/presentation/providers/auth_provider.dart';
@@ -44,6 +45,7 @@ final routerProvider = Provider<GoRouter>((ref) {
   return GoRouter(
     initialLocation: '/splash',
     refreshListenable: authRefreshNotifier,
+    observers: [UmamiAnalytics.navigationObserver],
     redirect: (context, state) {
       final authState = ref.read(authProvider);
       final isAuthenticated = authState.status == AuthStatus.authenticated;