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

lib/shared/utils/responsive_layout.dart

@@ -0,0 +1,49 @@
+import 'package:flutter/material.dart';
+
+/// 响应式布局工具类
+/// 目标屏幕: 1920x1080
+class ResponsiveLayout {
+  static const double targetWidth = 1920;
+  static const double targetHeight = 1080;
+
+  /// 获取屏幕宽度比例
+  static double widthPercent(BuildContext context, double percent) {
+    return MediaQuery.of(context).size.width * percent;
+  }
+
+  /// 获取屏幕高度比例
+  static double heightPercent(BuildContext context, double percent) {
+    return MediaQuery.of(context).size.height * percent;
+  }
+
+  /// 基于目标屏幕缩放宽度
+  static double scaleWidth(BuildContext context, double targetValue) {
+    final screenWidth = MediaQuery.of(context).size.width;
+    return targetValue * (screenWidth / targetWidth);
+  }
+
+  /// 基于目标屏幕缩放高度
+  static double scaleHeight(BuildContext context, double targetValue) {
+    final screenHeight = MediaQuery.of(context).size.height;
+    return targetValue * (screenHeight / targetHeight);
+  }
+
+  /// 基于目标屏幕缩放字体
+  static double scaleFont(BuildContext context, double targetFontSize) {
+    return scaleWidth(context, targetFontSize);
+  }
+
+  /// 预设布局尺寸
+  static double sidebarWidth(BuildContext context) => widthPercent(context, 0.25);  // 480px on 1920
+  static double detailWidth(BuildContext context) => widthPercent(context, 0.21);   // 400px on 1920
+  static double navWidth(BuildContext context) => widthPercent(context, 0.15);     // 280px on 1920
+  static double cardWidth(BuildContext context) => widthPercent(context, 0.30);    // ~576px
+}
+
+/// 响应式间距
+class ResponsiveSpacing {
+  static double small(BuildContext context) => ResponsiveLayout.scaleWidth(context, 8);
+  static double medium(BuildContext context) => ResponsiveLayout.scaleWidth(context, 16);
+  static double large(BuildContext context) => ResponsiveLayout.scaleWidth(context, 24);
+  static double xlarge(BuildContext context) => ResponsiveLayout.scaleWidth(context, 32);
+}