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

.metadata

@@ -0,0 +1,33 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "cc0734ac716fbb8b90f3f9db8020958b1553afa7"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+      base_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+    - platform: android
+      create_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+      base_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+    - platform: web
+      create_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+      base_revision: cc0734ac716fbb8b90f3f9db8020958b1553afa7
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'