Replaces direct usage of document.createElement('canvas') and manual context setup with the createCanvas utility across multiple utility modules. This change improves code consistency, reduces duplication, and centralizes canvas/context creation logic. Also updates notification usage in ClipboardManager to use showNotification and showInfoNotification utilities.
Introduces a 'blendArea' property to layers and UI controls for adjusting it. Implements distance field mask generation in ImageAnalysis.ts and applies the mask during layer rendering for smooth edge blending. Refactors CanvasRenderer to delegate layer drawing to CanvasLayers for proper blend area support.
Dariusz L