feat(flutter): 应用克莱因蓝主题与印尼语适配

test/theme/app_theme_test.dart

@@ -0,0 +1,60 @@
+// Author: fruit.com.cn
+
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:fruitshorts/core/theme/app_colors.dart';
+import 'package:fruitshorts/core/theme/app_theme.dart';
+
+double _contrast(Color foreground, Color background) {
+  final first = foreground.computeLuminance();
+  final second = background.computeLuminance();
+  return (max(first, second) + 0.05) / (min(first, second) + 0.05);
+}
+
+void main() {
+  test('should_expose_approved_klein_blue_tokens', () {
+    expect(AppColors.blue, const Color(0xFF002FA7));
+    expect(AppColors.bluePressed, const Color(0xFF00227A));
+    expect(AppColors.blueSoft, const Color(0xFF5B7BE0));
+    expect(AppColors.onPrimary, const Color(0xFFFFFFFF));
+  });
+
+  test('should_meet_text_and_icon_contrast_when_using_theme_tokens', () {
+    expect(
+      _contrast(AppColors.onPrimary, AppColors.blue),
+      greaterThanOrEqualTo(4.5),
+    );
+    expect(_contrast(AppColors.blue, Colors.white), greaterThanOrEqualTo(4.5));
+    expect(
+      _contrast(AppColors.blueSoft, AppColors.ink),
+      greaterThanOrEqualTo(3),
+    );
+  });
+
+  test('should_use_klein_blue_in_light_and_dark_color_schemes', () {
+    for (final theme in [AppTheme.light(), AppTheme.dark()]) {
+      expect(theme.colorScheme.primary, AppColors.blue);
+      expect(theme.colorScheme.onPrimary, AppColors.onPrimary);
+    }
+  });
+
+  testWidgets('should_expose_klein_blue_through_widget_theme', (tester) async {
+    late ThemeData applied;
+    await tester.pumpWidget(
+      MaterialApp(
+        theme: AppTheme.dark(),
+        home: Builder(
+          builder: (context) {
+            applied = Theme.of(context);
+            return const SizedBox.shrink();
+          },
+        ),
+      ),
+    );
+
+    expect(applied.colorScheme.primary, AppColors.blue);
+    expect(applied.colorScheme.onPrimary, AppColors.onPrimary);
+  });
+}

test/theme/hardcoded_blue_scan_test.dart

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+// Author: fruit.com.cn
+
+import 'dart:io';
+
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  test('should_use_theme_tokens_when_lib_code_is_scanned_for_legacy_blue', () {
+    final pattern = RegExp(
+      r'0xFF2F7BFF|0xff2F7BFF|0xFF8FB4FF|0xff8FB4FF|(?<!App)Colors\.blue\b',
+    );
+    final violations = <String>[];
+    for (final entity in Directory('lib').listSync(recursive: true)) {
+      if (entity is! File || !entity.path.endsWith('.dart')) continue;
+      final lines = entity.readAsLinesSync();
+      for (var index = 0; index < lines.length; index++) {
+        if (pattern.hasMatch(lines[index])) {
+          violations.add('${entity.path}:${index + 1}: ${lines[index].trim()}');
+        }
+      }
+    }
+
+    expect(violations, isEmpty, reason: violations.join('\n'));
+  });
+}