The current implementation of createDragProxy in src/draggable/grid/header/toolbar/SortZone.mjs is broken due to recent refactoring of the Grid component (specifically, the introduction of Neo.grid.Row).

Current Issues:

1. Styling Loss: The drag proxy no longer retains the correct grid styling (e.g., even/odd row colors) because the proxy structure doesn't match the new row-based DOM structure.
2. Height Calculation: The proxy height calculation might be incorrect or missing the necessary context.
3. Data Retrieval: While cell content retrieval partly works for simple columns, it needs to be robustly adapted to fetch data from the new Row components.

Goal:

• Update createDragProxy to correctly reconstruct the visual representation of the dragged column.
• Ensure the proxy includes the full grid height and proper styling (mimicking the grid body).
• Adapt the logic to iterate over Neo.grid.Row instances to extract cell VDOM.
• Verify that component-based columns are handled gracefully (or at least don't crash, even if fully cloning them is complex).

Implementation Details:

• Iterate over grid.body.items (the Row components) instead of body.getVdomRoot().cn.
• Extract the specific cell VDOM matching the dragged column index from each Row.
• Reconstruct the VDOM for the proxy to include neo-grid-row classes and styles to maintain visual fidelity during the drag operation.