feat: 初始化项目结构与核心文件

- 添加项目配置文件（tsconfig.json、bunfig.toml、.gitignore、.env.example）
- 创建文档架构图（00runtime.png 至 08-state-data-flow.png）
- 添加核心工具常量定义（FileEditTool、AgentTool、BashTool 等）
- 实现基础命令框架（help、exit、config、model 等）
- 添加 Ink TUI 组件库和布局引擎
- 包含内存管理、沙箱、shell 工具等基础工具类
- 设置预加载脚本和版本信息

stubs/ant-claude-for-chrome-mcp.ts

@@ -0,0 +1,24 @@
+export type PermissionMode =
+  | 'ask'
+  | 'skip_all_permission_checks'
+  | 'follow_a_plan';
+
+export type Logger = {
+  silly?: (...args: unknown[]) => void;
+  debug?: (...args: unknown[]) => void;
+  info?: (...args: unknown[]) => void;
+  warn?: (...args: unknown[]) => void;
+  error?: (...args: unknown[]) => void;
+};
+
+export type ClaudeForChromeContext = Record<string, unknown>;
+
+export const BROWSER_TOOLS: Array<{ name: string }> = [];
+
+export function createClaudeForChromeMcpServer(
+  _context: ClaudeForChromeContext,
+) {
+  return {
+    async connect(_transport: unknown): Promise<void> {},
+  };
+}

stubs/color-diff-napi.ts

@@ -0,0 +1,45 @@
+export type SyntaxTheme = {
+  theme: string;
+  source: string | null;
+};
+
+export class ColorDiff {
+  private hunk: { oldStart: number; oldLines: number; newStart: number; newLines: number; lines: string[] };
+  private filePath: string;
+  private firstLine: string | null;
+  private prefixContent: string | null;
+
+  constructor(
+    hunk: { oldStart: number; oldLines: number; newStart: number; newLines: number; lines: string[] },
+    firstLine: string | null,
+    filePath: string,
+    prefixContent?: string | null,
+  ) {
+    this.hunk = hunk;
+    this.filePath = filePath;
+    this.firstLine = firstLine;
+    this.prefixContent = prefixContent ?? null;
+  }
+
+  render(themeName: string, width: number, dim: boolean): string[] | null {
+    return null;
+  }
+}
+
+export class ColorFile {
+  private code: string;
+  private filePath: string;
+
+  constructor(code: string, filePath: string) {
+    this.code = code;
+    this.filePath = filePath;
+  }
+
+  render(themeName: string, width: number, dim: boolean): string[] | null {
+    return null;
+  }
+}
+
+export function getSyntaxTheme(themeName: string): SyntaxTheme {
+  return { theme: themeName, source: null };
+}