Implement comprehensive CI/CD pipeline with GitHub Actions

## CI Pipeline (.github/workflows/ci.yml)
- Multi-Python version testing (3.10, 3.11, 3.12, 3.13)
- Cross-platform compatibility testing
- Code coverage reporting with Codecov integration
- Security scanning with Bandit
- Package build verification
- Docker containerization testing

## CD Pipeline (.github/workflows/publish.yml)
- Automatic PyPI publishing on version bumps to main branch
- Version existence checking to prevent duplicate publishes
- Test PyPI validation before production publish
- Automatic GitHub release creation with assets
- Manual release workflow support

## Version Management (.github/workflows/version-bump.yml)
- Manual version bump workflow with patch/minor/major options
- Custom version specification support
- Automatic changelog generation
- Pull request creation for version bumps

## Dependencies & Maintenance
- Dependabot configuration for automated dependency updates
- Grouped dependency updates for better PR management
- Monthly GitHub Actions updates

## Documentation & Setup
- Comprehensive CI/CD setup guide (.github/SETUP_CICD.md)
- PyPI API token configuration instructions
- GitHub secrets setup documentation
- Troubleshooting guide and best practices

## Additional Features
- Pull request template improvements
- Enhanced linting configuration with venv exclusions
- CHANGELOG.md initialization with current version history
- Local CI/CD testing script for validation

This implementation provides a complete CI/CD pipeline for:
- ✅ Automated testing on every PR
- ✅ Automated PyPI publishing on version bumps
- ✅ Security scanning and code quality checks
- ✅ Cross-platform and multi-Python version support
- ✅ Dependency management automation
- ✅ Release management with GitHub releases

🤖 Generated with [Claude Code](https://claude.ai/code)

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

CHANGELOG.md

@@ -0,0 +1,47 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- Comprehensive CI/CD pipeline with GitHub Actions
+- Automated PyPI publishing on version bumps
+- CloudFlare error detection and user-friendly error handling
+- Version bump automation workflow
+
+### Changed
+- Enhanced error handling in API client and MCP server
+- Improved documentation for setup and usage
+
+### Fixed
+- CloudFlare protection blocking issues with helpful resolution instructions
+
+## [0.1.1] - 2024-06-29
+
+### Added
+- Initial MCP server implementation
+- Penpot API client with authentication
+- Object tree visualization and analysis tools
+- Export functionality for design objects
+- Cache system for improved performance
+- Comprehensive test suite
+
+### Features
+- List and access Penpot projects and files
+- Search design objects by name with regex support
+- Get object tree structure with field filtering
+- Export design objects as images
+- Claude Desktop and Cursor IDE integration
+- HTTP server for image serving
+
+## [0.1.0] - 2024-06-28
+
+### Added
+- Initial project structure
+- Basic Penpot API integration
+- MCP protocol implementation
+- Core tool definitions