- Remove persistent font-size slider from main toolbar (tools only)
- Lock in zoom-aware creation defaults as named constants
- Split contextual toolbar by object type: text vs sticky
- Text: fontSize + fontFamily + text color
- Sticky: fontSize + fontFamily + text color + note fill color
- Mixed selection: hide toolbar
- Bake scale into fontSize on text resize (reset sx/sy to 1)
- Sticky resize stays layout-driven (no font change)