chore(project): 初始化项目基础配置文件

- 添加 CodeGraph、Android 和通用 gitignore 配置
- 创建项目元数据文件跟踪 Flutter 项目属性
- 添加 Codex AI 指导文档 AGENTS.md 说明项目架构
- 配置代码分析选项 analysis_options.yaml
- 设置 Android 应用清单权限和 Kiosk 模式配置
- 实现中英文国际化支持 AppLocalizations
- 配置 GoRouter 应用路由导航
- 创建明亮工业控制风格的主题配置 AppTheme

test/localization_test.dart

@@ -0,0 +1,38 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter/material.dart';
+import 'package:kuaishai2/core/localization/app_localizations.dart';
+
+void main() {
+  group('AppLocalizations', () {
+    test('Chinese locale should return Chinese strings', () {
+      const locale = Locale('zh', 'CN');
+      final l10n = AppLocalizations(locale);
+
+      expect(l10n.deviceName, contains('一体机'));
+      expect(l10n.programs, equals('程序管理'));
+      expect(l10n.run, equals('运行'));
+      expect(l10n.settings, equals('系统设置'));
+    });
+
+    test('English locale should return English strings', () {
+      const locale = Locale('en', 'US');
+      final l10n = AppLocalizations(locale);
+
+      expect(l10n.deviceName, contains('System'));
+      expect(l10n.programs, equals('Programs'));
+      expect(l10n.run, equals('Run'));
+      expect(l10n.settings, equals('Settings'));
+    });
+
+    test('New translation keys should work', () {
+      const locale = Locale('zh', 'CN');
+      final l10n = AppLocalizations(locale);
+
+      expect(l10n.lightOn, equals('亮'));
+      expect(l10n.lightOff, equals('暗'));
+      expect(l10n.enabled, equals('启用'));
+      expect(l10n.disabled, equals('停用'));
+      expect(l10n.stepList, equals('步骤列表'));
+    });
+  });
+}