v0.42.0

• Add opt-in stacked-layout="compact" Table scan rows for phone lists with actions. Row headers and explicitly chosen summary columns omit visible repeated labels; other columns keep concise label/value lines, and row actions wrap without a visible Actions label (#578, #579).
• Add TableColumn.compact: "summary" | "hidden". Hiding is an explicit consumer choice that applies only to compact stacking; row headers stay visible, and desktop/default list/grid layouts keep all columns. Preserve accessible summary labels, row-specific action names, slotted host node identity, keyboard behavior and focus across data updates.
• Keep the compact current-record marker visible when a leading column is hidden. Compact stacking suppresses fixed-height virtualization because rows can wrap to different heights.