feat: initial Star Taxi APK test prototype

test/widget_test.dart

@@ -0,0 +1,9 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:star_taxi_apk_test/main.dart';
+
+void main() {
+  testWidgets('app starts', (tester) async {
+    await tester.pumpWidget(const StarTaxiApp());
+    expect(find.textContaining('Star Taxi'), findsWidgets);
+  });
+}