v0.3.0

Added

User-facing features:

• Absolute node positioning with absoluteX and absoluteY properties for precise chart control
• c key shortcut to copy current node labels to clipboard
• Enhanced chart titles with floating display for better visual hierarchy
• Improved chart dimension enforcement with automatic boundary calculation

Developer improvements:

• Deep Pydantic integration with comprehensive type annotations and schema validation
• Modular code structure with new chart_internals.py and css.py modules

Changed

User-facing changes:

• BREAKING: Attribute names must now be valid CSS identifiers
• Chart titles (header/metadata/displaytitle) now render directly in charts
• Example JSON files renamed for clarity (example4.json → curves.json, etc.)

Developer changes:

• Complete internal refactoring from monolithic main.py to modular architecture
• Replaced manual JSON parsing with robust Pydantic models for type safety
• Enhanced CSS generation using custom properties for better maintainability
• Updated template to minimize boilerplate generation at runtime
• Switched to uv instead of Poetry for virtual environment management
• Switched to flake-based development environment instead of devenv