Function calculateGridPosition

calculateGridPosition(
    column: number,
    span: number,
    containerWidth: number,
): { width: number; x: number }
Helper function to create grid-based position

Convenience wrapper around LayoutSystem.calculateGridPosition
Parameters
- column: number
  Starting column (0-11)
- span: number
  Number of columns to span (1-12)
- containerWidth: number
  Total container width
Returns { width: number; x: number }
Position and width for grid cell
- Defined in systems/LayoutSystem.ts:408