release: bump version to 0.6.0 with clean editor architecture

Version 0.6.0 introduces comprehensive improvements:

🚀 Major Features:
- Custom status modal system with theme consistency
- HTML generation dogtag with user attribution
- Enhanced link navigation (new tabs, no edit trigger)
- Comprehensive UI framework documentation

🔧 Architecture:
- Complete document_manager.py cleanup (-2000 lines)
- Clean wrapper pattern maintaining compatibility
- Enhanced database integration and AST processing

🎨 UI/UX:
- Theme-aware modal dialogs
- Standardized CSS naming conventions
- Improved error handling and validation

🧪 Quality:
- Updated test suite for clean implementation
- Fixed JavaScript syntax and CSS escape issues
- Enhanced front matter parsing integration

This release establishes a solid foundation for maintainable,
clean architecture while preserving all existing functionality.

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

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

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "markitect"
-version = "0.5.0"
+version = "0.6.0"
 description = "Advanced Markdown engine for structured content"
 readme = "README.md"
 requires-python = ">=3.8"