• Refactored shell parsing to use centralized wrapper functions for consistency
• Renamed and restructured ink rendering class from A$1 to xU1
• Improved color application in text rendering with transform-based approach
• Enhanced border rendering to use theme-aware color functions
• Removed unused dependencies (onetime, signal-exit, stream imports)
• Cleaned up unused functions and variables (19 removed total)

Note: This changelog focuses on user-visible changes and significant improvements. Many internal refactorings and code reorganizations have been omitted for brevity.