hotfix: Defer package synchronization in router to avoid state modification during build phase

lib/router.dart

@@ -12,6 +12,7 @@ import 'package:zapstore/screens/search_screen.dart';
 import 'package:zapstore/screens/updates_screen.dart';
 import 'package:zapstore/screens/profile_screen.dart';
 import 'package:zapstore/services/package_manager/package_manager.dart';
+
 /// Root paths for each navigation branch (used for back navigation handling)
 const kBranchRoots = ['/search', '/updates', '/profile'];
 
@@ -140,6 +141,7 @@ final routerProvider = Provider<GoRouter>((ref) {
     final wasUpdatesRoute = previousPath?.startsWith('/updates') ?? false;
     previousPath = currentPath;
 
+    Future.microtask(() {
       // Sync installed packages on every navigation to catch sideloads,
       // external installs/uninstalls, and self-updating apps.
       // This is a local-only platform channel call (~100-500ms, no network).
@@ -152,6 +154,7 @@ final routerProvider = Provider<GoRouter>((ref) {
       if (wasUpdatesRoute && !isUpdatesRoute) {
         ref.read(packageManagerProvider.notifier).clearCompletedOperations();
       }
+    });
   }
 
   router.routerDelegate.addListener(onRouteChange);