添加 README: 项目结构说明

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

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+# Claude Code v2.1.88 Source Code
+
+From npm package `@anthropic-ai/claude-code` version **2.1.88**.
+
+The published package ships a single bundled `cli.js` (~12MB). The `src/` directory in this repo contains the **decompiled/unbundled TypeScript source** extracted from the npm tarball.
+
+## Stats
+
+| Item | Count |
+|------|-------|
+| Source files (.ts/.tsx) | ~1,884 |
+| Lines of code | ~512,664 |
+| Dependencies (node_modules) | ~192 packages |
+
+## Directory Structure
+
+```
+src/
+├── main.tsx                 # Main entry (~4,683 lines)
+├── QueryEngine.ts           # Core query lifecycle engine
+├── query.ts                 # Query main loop (~785KB, largest file)
+├── Tool.ts                  # Tool interface + buildTool factory
+├── Task.ts                  # Task types and lifecycle
+├── tools.ts                 # Tool registry and presets
+├── bridge/                  # Bridge to Claude Desktop / remote
+├── cli/                     # CLI handlers and transports
+├── commands/                # Slash commands (~80+)
+├── components/              # React/Ink terminal UI
+├── entrypoints/             # CLI, SDK, MCP entry points
+├── hooks/                   # React hooks
+├── screens/                 # REPL and other screens
+├── services/                # API, analytics, MCP, compact, plugins
+├── state/                   # AppState management
+├── tasks/                   # Task implementations (bash, agent, remote)
+├── tools/                   # Tool implementations (~40+)
+│   ├── AgentTool/           # Sub-agent spawning
+│   ├── BashTool/            # Shell execution
+│   ├── FileEditTool/        # File editing
+│   ├── FileReadTool/        # File reading
+│   ├── FileWriteTool/       # File writing
+│   ├── GlobTool/            # File glob search
+│   ├── GrepTool/            # Content grep search
+│   ├── MCPTool/             # MCP protocol tools
+│   ├── WebFetchTool/        # Web fetching
+│   └── ...                  # 30+ more tools
+├── types/                   # TypeScript type definitions
+├── utils/                   # Utilities
+└── vendor/                  # Native module source stubs
+```
+
+## Key Architecture
+
+- **Runtime**: Bun (uses `bun:bundle` feature flags, macros)
+- **UI**: React + Ink (terminal rendering)
+- **API**: Anthropic Claude API with streaming
+- **Protocol**: MCP (Model Context Protocol) for tool extensions
+- **Build**: Bun bundler produces single `cli.js` with dead code elimination
+
+## Notes
+
+- This source is **not directly compilable** — it lacks `tsconfig.json`, build scripts, and the full Bun build pipeline
+- Feature flags (`feature('...')`) are compile-time gated via Bun's dead code elimination
+- `process.env.USER_TYPE === 'ant'` sections are Anthropic-internal only
+- The compiled `cli.js` is a self-contained bundle requiring only Node.js >= 18
+
+## License
+
+See the original package for license information.