- Replace generic InfoPanel with non-generic version using IInfoPanelBase
- Add ParentGrid, GetRootGrid, and InfoPanelInstance to IMgGridBase for nested grid hierarchy
- Only root grid displays InfoPanel; nested grids inherit context
- InfoPanel now handles any data type via reflection and object
- All grid-to-InfoPanel communication routed through root grid
- Add option to show/hide readonly fields in edit mode
- Improve InfoPanel CSS for up to 4 responsive columns
- Remove redundant code and add debug output for InfoPanel data flow
Loretta
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