Initial project import

frontend/lib/shared/version.dart

@@ -0,0 +1,23 @@
+import 'package:package_info_plus/package_info_plus.dart';
+
+class AppVersion {
+  AppVersion._();
+
+  static const String buildId = String.fromEnvironment(
+    'APP_VERSION',
+    defaultValue: 'dev',
+  );
+
+  static PackageInfo? _packageInfo;
+
+  static Future<void> initialize() async {
+    _packageInfo ??= await PackageInfo.fromPlatform();
+  }
+
+  static String get versionName => _packageInfo?.version ?? '0.0.0';
+
+  static int get buildNumber =>
+      int.tryParse(_packageInfo?.buildNumber ?? '') ?? 0;
+
+  static String get display => 'v$versionName ($buildNumber)';
+}