export Stylish Data Table
fun <T> exportStylishDataTable(rows: List<T>, columns: List<StylishDataTableColumn<T>>, format: StylishDataTableExportFormat = StylishDataTableExportFormat.Csv): String
Serializes rows using the column-level StylishDataTableColumn.exportValue adapters. Columns without an adapter are exported as an empty value rather than introspecting arbitrary Kotlin objects. This keeps the common API deterministic on every target.