docs: 添加英文 README 并增加中英文切换链接

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

Author: hashpanda

README.md

@@ -3,6 +3,9 @@
   <p align="center">
     <strong>从零构建企业级 AI Agent CLI — 逐课拆解 Claude Code 源码架构</strong>
   </p>
+  <p align="center">
+    <a href="./README.md">中文</a> · <a href="./README_en.md">English</a>
+  </p>
   <p align="center">
     🌐 <a href="https://build.funagent.app">官网</a> · 📖 <a href="./CONTRIBUTING.md">贡献指南</a> · 🐛 <a href="https://github.com/funAgent/build-claude-code-cli/issues">反馈问题</a>
   </p>

README_en.md

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+<p align="center">
+  <h1 align="center">Build Claude Code</h1>
+  <p align="center">
+    <strong>Build an Enterprise-Grade AI Agent CLI from Scratch — A Lesson-by-Lesson Deconstruction of Claude Code's Architecture</strong>
+  </p>
+  <p align="center">
+    <a href="./README.md">中文</a> · <a href="./README_en.md">English</a>
+  </p>
+  <p align="center">
+    🌐 <a href="https://build.funagent.app">Website</a> · 📖 <a href="./CONTRIBUTING.md">Contributing</a> · 🐛 <a href="https://github.com/funAgent/build-claude-code-cli/issues">Issues</a>
+  </p>
+</p>
+
+<p align="center">
+  <a href="https://github.com/funAgent/build-claude-code-cli/stargazers"><img src="https://img.shields.io/github/stars/funAgent/build-claude-code-cli?style=flat&color=FFD700" alt="GitHub Stars" /></a>
+  <a href="https://github.com/funAgent/build-claude-code-cli/network/members"><img src="https://img.shields.io/github/forks/funAgent/build-claude-code-cli?style=flat" alt="GitHub Forks" /></a>
+  <a href="https://github.com/funAgent/build-claude-code-cli/commits"><img src="https://img.shields.io/github/last-commit/funAgent/build-claude-code-cli" alt="Last Commit" /></a>
+  <a href="./LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="MIT License" /></a>
+  <img src="https://img.shields.io/badge/lessons-49-brightgreen.svg" alt="49 Lessons" />
+  <img src="https://img.shields.io/badge/TypeScript-100%25-3178C6.svg" alt="TypeScript" />
+  <img src="https://img.shields.io/badge/Next.js-16-000.svg" alt="Next.js 16" />
+</p>
+
+---
+
+## Disclaimer
+
+This project is for **educational purposes only**. The content is based on publicly available technical analyses of Claude Code and inspired by the [learn-claude-code](https://github.com/shareAI-lab/learn-claude-code) project. All lesson code is independently written for teaching demonstration and is not intended for production use.
+
+> "Claude Code" is a trademark of Anthropic. This project is not affiliated with or endorsed by Anthropic.
+
+## What is this?
+
+![Website Homepage](.github/screenshot.jpg)
+
+49 progressive lessons that teach you to build a fully-featured AI Agent CLI — architecturally aligned with [Claude Code](https://github.com/anthropics/claude-code) — starting from `npm init`.
+
+**The core pattern is just one while loop:**
+
+```typescript
+while (true) {
+  response = await client.messages.create({ messages, tools })
+  if (response.stop_reason !== "tool_use") break
+  for (const toolCall of response.content) {
+    result = await executeTool(toolCall.name, toolCall.input)
+    messages.push(result)
+  }
+}
+```
+
+Each lesson produces a self-contained, runnable project snapshot. From the first API call to the final telemetry system, you'll end up with a complete, distributable AI Agent CLI.
+
+## Quick Start
+
+```bash
+# Clone the repo
+git clone https://github.com/funAgent/build-claude-code-cli.git
+cd build-claude-code-cli
+
+# Run any lesson
+cd agents/s03-agent-loop
+npm install
+cp .env.example .env   # then add your API key
+npm run dev
+
+# Launch the tutorial website
+cd web
+npm install
+npm run dev
+# Visit http://localhost:3000
+```
+
+**Prerequisites:** Node.js >= 18 · npm >= 9 · Git
+
+## Curriculum
+
+Start learning at [build.funagent.app](https://build.funagent.app/)
+
+| # | Phase | Lessons | Key Capabilities |
+|---|-------|---------|-----------------|
+| 0 | Foundations | s00 – s02 | API calls, CLI scaffolding, child process management |
+| 1 | Minimal Agent | s03 – s07 | Agent loop, message management, error handling, config, cost tracking |
+| 2 | Tool System | s08 – s12 | Tool abstraction, file read/write, editing, search, tool registry |
+| 3 | Terminal UI | s13 – s16 | Ink components, message list, input box, full REPL |
+| 4 | Prompt Engineering | s17 – s19 | System prompts, CLAUDE.md rules, prompt caching |
+| 5 | Streaming & Performance | s20 – s23 | Stream parsing, token streaming, parallel tools, startup optimization |
+| 6 | Context Management | s24 – s26 | Conversation compaction, multi-layer strategies, large output handling |
+| 7 | Agent Intelligence | s27 – s31 | Planning (TodoWrite), sub-agents, skill system, task management |
+| 8 | Security & Permissions | s32 – s34 | Rule engine, permission UI, sub-agent permission inheritance |
+| 9 | Extension Ecosystem | s35 – s38 | MCP protocol, session persistence, plugin system |
+| 10 | Multi-Agent | s39 – s43 | Agent definitions, coordinator, team collaboration, communication protocols, worktree isolation |
+| 11 | Production-Ready | s44 – s48 | Graceful recovery, feature flags, packaging & distribution, native capabilities, telemetry & diagnostics |
+
+## Project Structure
+
+```
+build-claude-code-cli/
+├── agents/              # 49 TypeScript lessons (each independently runnable)
+│   ├── s00-api-basics/
+│   ├── s01-cli-scaffold/
+│   ├── ...
+│   └── s48-telemetry-diagnostics/
+├── docs/                # Tutorial documentation
+│   ├── zh/              # 中文 (49 articles)
+│   └── en/              # English
+├── web/                 # Next.js tutorial website
+│   └── src/
+│       ├── app/         # Page routes
+│       ├── components/  # UI components (source viewer, diff, terminal player, etc.)
+│       ├── data/        # Scenarios, annotations, terminal recordings
+│       └── lib/         # Utilities, constants, i18n
+├── reference/           # Claude Code architecture reference notes
+├── PLAN.md              # Detailed planning document
+├── TODO.md              # Development progress tracking
+└── CONTRIBUTING.md      # Contribution guide
+```
+
+## Tutorial Website Features
+
+- **Interactive Source Viewer** — Syntax highlighting + lesson-by-lesson diff comparison
+- **Terminal Recording Player** — Simulated real CLI interaction playback
+- **Architecture Overview** — Visual module relationships and layered structure
+- **Deep Annotations** — Architecture decisions mapped to Claude Code source code
+- **Progress Tracking** — Locally persisted completion status
+- **Bilingual Support** — Full Chinese/English toggle
+- **Dark Mode** — Automatically follows system preference
+
+## Tech Stack
+
+**Lesson Projects:** TypeScript · Node.js · Commander.js · React + Ink · Anthropic SDK · Zod · esbuild · MCP SDK
+
+**Tutorial Website:** Next.js 16 · React 19 · Tailwind CSS v4 · Framer Motion · unified (Markdown rendering)
+
+## Contributing
+
+Contributions are welcome! See [CONTRIBUTING.md](./CONTRIBUTING.md) to learn how to:
+
+- Improve existing lesson content
+- Add new knowledge and materials
+- Ensure consistency across lessons
+
+## Contributors
+
+<a href="https://github.com/funAgent/build-claude-code-cli/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=funAgent/build-claude-code-cli" />
+</a>
+
+## Star History
+
+<a href="https://star-history.com/#funAgent/build-claude-code-cli&Date">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=funAgent/build-claude-code-cli&type=Date&theme=dark" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=funAgent/build-claude-code-cli&type=Date" />
+   <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=funAgent/build-claude-code-cli&type=Date" />
+ </picture>
+</a>
+
+## License
+
+[MIT](./LICENSE) © [funAgent](https://github.com/funAgent)