feat(docs): add interactive demos and complete content for development tools

- Add Vue components for interactive demos (SSH auth, regex, env vars, ports)
- Complete markdown content for SSH, regex, environment variables, and ports
- Remove placeholder "待实现" sections and replace with detailed guides
- Add visual explanations for key concepts like ports and localhost
- Include practical examples and troubleshooting tips
- Add component for showing evolution from transistors to CPU
- Improve documentation structure and navigation
- Add security best practices for API keys and environment variables

docs/.vitepress/config.mjs

@@ -589,7 +589,6 @@ export default defineConfig({
               items: [
                 { text: '集成开发环境 (IDE) 基础', link: '/zh-cn/appendix/2-development-tools/ide-basics' },
                 { text: '命令行与 Shell 脚本', link: '/zh-cn/appendix/2-development-tools/command-line-shell' },
-                { text: '编辑器与 AI 编程助手', link: '/zh-cn/appendix/2-development-tools/editors-and-ai' },
                 { text: 'Git：代码的时光机', link: '/zh-cn/appendix/2-development-tools/git-version-control' },
                 { text: '环境变量与 PATH', link: '/zh-cn/appendix/2-development-tools/environment-path' },
                 { text: '端口与 localhost', link: '/zh-cn/appendix/2-development-tools/ports-localhost' },