isFlutterProjectRoot static method
Checks if the given directory is a Flutter project root.
Returns true if pubspec.yaml exists and contains Flutter configuration.
Implementation
static bool isFlutterProjectRoot(String dir) {
final pubspec = File(p.join(dir, 'pubspec.yaml'));
if (!pubspec.existsSync()) return false;
final content = pubspec.readAsStringSync();
return content.contains('flutter:') || content.contains('sdk: flutter');
}