- Move DesignerToolbar from sidebar to top of canvas container
- Convert vertical toolbar to horizontal layout with grouped controls
- Add element buttons (Text, Circle, Rectangle, Image) on left
- Inline color pickers for Fill and Stroke with compact design
- Horizontal zoom controls (-, percentage, +, Reset)
- Clear Canvas button positioned on the right
- Use border separators between control groups
- Remove vertical card layout in favor of toolbar-style UI
