feat: improve development experience and add performance optimizations

[WinJayX]

Summary

This PR improves the development experience and adds performance optimizations to Drawnix.

Changes Made

📚 Documentation

• DEVELOPMENT.md: Comprehensive development guide with setup instructions, project structure, available scripts, and troubleshooting tips
• CONTRIBUTING.md: Detailed contribution guidelines including code style, commit message format, and community standards
• CODE_OF_CONDUCT.md: Contributor Covenant Code of Conduct for community guidelines

🛠️ Error Handling Improvements

• Enhanced error handling with additional error types:
  • ValidationError for input validation
  • NetworkError for network-related issues
  • FileError for file operations
  • CanvasError for canvas operations
• Added utility functions for error creation and handling
• Improved error messages and debugging capabilities

⚡ Performance Optimizations

• PerformanceMonitor: Track and measure performance metrics
• Debouncer: Debounce function calls to improve performance
• Throttler: Throttle function calls to prevent excessive execution
• MemoryManager: Manage memory usage with cache size limits
• CanvasOptimizer: Batch canvas operations for better performance
• Utility functions for high-DPI canvas creation and optimization

Benefits

• Better Developer Experience: Clear documentation helps new contributors get started quickly
• Improved Code Quality: Contribution guidelines ensure consistent code style
• Enhanced Performance: Performance monitoring and optimization tools
• Better Error Handling: More specific error types for better debugging
• Community Standards: Code of conduct promotes a welcoming community

Testing

• All new code follows existing TypeScript patterns
• Error handling utilities are properly typed
• Performance utilities include proper cleanup methods
• Documentation follows Markdown best practices

Checklist

• Documentation added/updated
• Code follows project style guidelines
• New features are properly typed
• Performance optimizations are included
• Error handling is improved
• Community guidelines are established

This PR enhances the overall developer experience and code quality of the Drawnix project.

[NaoCoding]

Thanks for your contribution, I believe this can increase the development experience and help newcomers to understand the structure of drawnix faster. However, I am quite having no idea about do errors handling and outputing and the performance calculation script are necessary or not. @pubuzhixing8 , what do you think?

[NaoCoding]

I think Drawnix have never used 4200 port as default output port.