[verified] Publish ReelBox source under GPLv3

tool/api_smoke_test.dart

@@ -0,0 +1,25 @@
+// Explicit opt-in live read-only probe, outside default test discovery.
+// Only local preference storage is a fixture; API responses are real network data.
+import 'dart:io';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'api_smoke.dart' as probe;
+
+// Use the normal Dart HTTP client instead of Flutter test's deliberate HTTP-400
+// client. This does not change TLS validation, credentials or access denials.
+class _LiveReadOnlyNetwork extends HttpOverrides {}
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  test('live read-only catalog contracts and source availability', () async {
+    // Explicit test-only harness outside automatic test discovery.
+    // ignore: invalid_use_of_visible_for_testing_member
+    SharedPreferences.setMockInitialValues({});
+    await HttpOverrides.runWithHttpOverrides(
+      probe.main,
+      _LiveReadOnlyNetwork(),
+    );
+  }, timeout: const Timeout(Duration(minutes: 3)));
+}