feat(flutter): 应用克莱因蓝主题与印尼语适配

test/formatting/localized_date_time_test.dart

@@ -0,0 +1,41 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/formatting/localized_date_time.dart';
+import 'package:fruitshorts/l10n/app_localizations.dart';
+
+void main() {
+  testWidgets(
+    'should_use_indonesian_material_date_and_time_when_locale_is_id',
+    (tester) async {
+      final value = DateTime(2026, 10, 17, 12, 30);
+      late String formatted;
+
+      await tester.pumpWidget(
+        MaterialApp(
+          locale: const Locale('id'),
+          localizationsDelegates: AppLocalizations.localizationsDelegates,
+          supportedLocales: AppLocalizations.supportedLocales,
+          home: Builder(
+            builder: (context) {
+              formatted = formatLocalizedDateTime(context, value);
+              final localizations = MaterialLocalizations.of(context);
+              final expectedDate = localizations.formatCompactDate(
+                value.toLocal(),
+              );
+              final expectedTime = localizations.formatTimeOfDay(
+                TimeOfDay.fromDateTime(value.toLocal()),
+                alwaysUse24HourFormat: MediaQuery.alwaysUse24HourFormatOf(
+                  context,
+                ),
+              );
+              expect(formatted, '$expectedDate $expectedTime');
+              return const SizedBox.shrink();
+            },
+          ),
+        ),
+      );
+    },
+  );
+}