UseTableTreeData

Headless tree plugin for Table: renders nested rows with per-level indentation and expand/collapse chevrons in the tree column (the first column by default), and reflects hierarchy on body rows via aria-level and aria-expanded. Composable with the other Table plugins: the canonical plugin order places tree before selection, so the checkbox column lands left of the indented tree column. Feed it the treeConfig from useTableTreeState, or construct the config directly for server-driven or pre-flattened trees. When no row is expandable (flat data), every transform is a pass-through and the table renders identically to one without the plugin. Known limitation: the tree column wraps its cell content, so textOverflow="truncate" tooltips do not apply within the tree column.