v0.4.0

What's New

State Diagrams

• Full state diagram support with states, transitions, and notes
• Start/end terminals with proper styling
• Transition labels with guards and actions

Shared Infrastructure

• New AsciiCanvas abstraction for all renderers
• New EdgeRouter for orthogonal edge routing
• Reduced code duplication across plugins

Flowchart Improvements

• Barycenter ordering - minimizes edge crossings in layouts
• Better visual output for complex graphs

Internal

• Migrated all renderers to shared AsciiCanvas
• Added extensive test coverage for ordering algorithm