feat(dependencies): add rxdart package and improve string extension methods for better handling of empty strings and gender parsing

test/features/profile/models/pass_key_params_test.dart

@@ -0,0 +1,26 @@
+import 'package:eatvio_app/features/profile/models/pass_key_params.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('PassKeyParams', () {
+    test('создает PassKeyParams с правильными значениями', () {
+      final model = PassKeyParams(
+        routeName: '/profile',
+        routeParams: {'id': 1},
+      );
+
+      expect(model.routeName, '/profile');
+      expect(model.routeParams, {'id': 1});
+    });
+
+    test('создает PassKeyParams без routeParams', () {
+      final model = PassKeyParams(
+        routeName: '/profile',
+        routeParams: null,
+      );
+
+      expect(model.routeParams, isNull);
+    });
+  });
+}
+