feat: 补充构建配置，实现 Claude Code 源码编译

添加缺失的项目配置文件，使源码快照可以成功编译和运行：
- package.json: 85+ 依赖项 + 构建脚本
- tsconfig.json: TypeScript + JSX + src/ 路径别名
- globals.d.ts: MACRO 构建常量 + bun:bundle 类型声明
- scripts/build.ts: Bun 构建脚本（feature flag polyfill + MACRO 注入 + 内部包 stub + 缺失源文件自动 stub）
- BUILD_GUIDE.md: 中文编译文档
- 修 Commander.js v13 的 -d2e 短标志兼容问题

构建脚本通过 missingSourceStubPlugin 插件自动检测并 stub 缺失的源文件，
无需在源码树中手动创建 stub 文件。

构建结果：dist/cli.js (11.7 MB)，CLI 可正常启动并显示交互式终端 UI。

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

globals.d.ts

@@ -0,0 +1,77 @@
+/**
+ * Global type declarations for Claude Code build-time constants.
+ *
+ * MACRO is defined at bundle time via Bun's --define flag.
+ * bun:bundle provides compile-time feature flags for dead code elimination.
+ */
+
+// Build-time macro constants injected via --define
+declare const MACRO: {
+  /** Application version string, e.g. "1.0.0" */
+  VERSION: string;
+  /** ISO 8601 build timestamp, e.g. "2026-03-31T00:00:00Z" */
+  BUILD_TIME: string;
+  /** npm package URL, e.g. "@anthropic-ai/claude-code" */
+  PACKAGE_URL: string;
+  /** Native package URL for platform-specific binaries */
+  NATIVE_PACKAGE_URL: string | undefined;
+  /** Feedback channel URL or description */
+  FEEDBACK_CHANNEL: string;
+  /** Instructions for reporting issues */
+  ISSUES_EXPLAINER: string;
+  /** Version changelog content */
+  VERSION_CHANGELOG: string;
+};
+
+// Bun's bundle-time feature flag module
+declare module "bun:bundle" {
+  /**
+   * Returns true if the named feature flag is enabled at bundle time.
+   * Used for dead code elimination — disabled branches are stripped entirely.
+   */
+  export function feature(name: string): boolean;
+}
+
+// Stub declarations for internal Anthropic packages that are not publicly available
+declare module "@ant/claude-for-chrome-mcp" {
+  const mod: any;
+  export default mod;
+  export const runClaudeInChromeMcpServer: () => Promise<void>;
+}
+
+declare module "@ant/computer-use-input" {
+  const mod: any;
+  export default mod;
+}
+
+declare module "@ant/computer-use-mcp" {
+  const mod: any;
+  export default mod;
+  export const runComputerUseMcpServer: () => Promise<void>;
+}
+
+declare module "@ant/computer-use-swift" {
+  const mod: any;
+  export default mod;
+}
+
+declare module "@anthropic-ai/claude-agent-sdk" {
+  const mod: any;
+  export default mod;
+}
+
+declare module "@anthropic-ai/mcpb" {
+  const mod: any;
+  export default mod;
+}
+
+declare module "@anthropic-ai/sandbox-runtime" {
+  const mod: any;
+  export default mod;
+}
+
+declare module "color-diff-napi" {
+  export function diff(a: string, b: string): any;
+  const mod: any;
+  export default mod;
+}