docs: add VitePress documentation site

- Add docs directory with VitePress configuration
- Add GitHub Actions workflow for docs build and deploy
- Support bilingual (English/Chinese) documentation
- Include search, custom theme, and responsive design

docs/guide/getting-started.md

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+# Getting Started with CCW
+
+Welcome to CCW (Claude Code Workspace) - an advanced AI-powered development environment that helps you write better code faster.
+
+## What is CCW?
+
+CCW is a comprehensive development environment that combines:
+
+- **Main Orchestrator (`/ccw`)**: Intent-aware workflow selection and automatic command routing
+- **AI-Powered CLI Tools**: Analyze, review, and implement code with multiple AI backends
+- **Specialized Agents**: Code execution, TDD development, testing, debugging, and documentation
+- **Workflow Orchestration**: 4-level workflow system from spec to implementation
+- **Extensible Skills**: 50+ built-in skills with custom skill support
+- **MCP Integration**: Model Context Protocol for enhanced tool integration
+
+## Quick Start
+
+### Installation
+
+```bash
+# Install CCW globally
+npm install -g @ccw/cli
+
+# Or use with npx
+npx ccw --help
+```
+
+### Your First Workflow
+
+Create a simple workflow in under 5 minutes:
+
+```bash
+# Main orchestrator - automatically selects workflow based on intent
+/ccw "Create a new project"                    # Auto-selects appropriate workflow
+/ccw "Analyze the codebase structure"          # Auto-selects analysis workflow
+/ccw "Add user authentication"                 # Auto-selects implementation workflow
+
+# Auto-mode - skip confirmation
+/ccw -y "Fix the login timeout issue"          # Execute without confirmation prompts
+
+# Or use specific workflow commands
+/workflow:init                                  # Initialize project state
+/workflow:plan "Add OAuth2 authentication"     # Create implementation plan
+/workflow:execute                               # Execute planned tasks
+```
+
+## Next Steps
+
+- [Installation Guide](./installation.md) - Detailed installation instructions
+- [First Workflow](./first-workflow.md) - 30-minute quickstart tutorial
+- [Configuration](./configuration.md) - Customize your CCW setup
+
+::: tip Need Help?
+Check out our [GitHub Discussions](https://github.com/your-repo/ccw/discussions) or join our [Discord community](https://discord.gg/ccw).
+:::