fix

lib/core/utils/utils.dart

@@ -0,0 +1,12 @@
+/// Export all core utilities
+///
+/// Contains helper functions, extensions, and utility classes
+library;
+
+export 'database_optimizer.dart';
+export 'debouncer.dart';
+export 'extensions.dart';
+export 'formatters.dart';
+export 'performance_monitor.dart';
+export 'responsive_helper.dart';
+export 'validators.dart';