Display
Density, conditional formatting, overlays and status bar.

Display features shape how cells look and how state is surfaced — density, conditional
formatting, loading / error overlays and a status bar. Overlays default on (a server-wired grid
shows loading / error for free); the rest are opt-in. Conditional formatting is rule-driven and
composes with the CSS slots (classNames / styles).
| Feature | Flag | Default |
|---|---|---|
| Cell spanning | enableCellSpanning | false |
| Conditional formatting runtime toggle | enableConditionalFormatting | true |
| Loading / error overlays | enableOverlays | true |
| Density toggle | showDensityToggle | false |
| Filter builder UI | showFilterBuilder | false |
| Format builder UI | showFormatBuilder | false |
| Status bar | showStatusBar | false |