Open a detail view and return
Add this destination in Widget destinations (JSON). Its Inline body is complete and reads the selected order ID from its input:mode: 'panel' to open the destination beside its parent, or mode: 'inline' with an existing parent cell ID in hostId to mount it inside that cell. These modes start independent state: BACK navigates a retained replacement frame, not a parent in a different surface. Dismiss a panel with Escape or an outside click. For deeper drill-down, register another named destination and pass the next record ID explicitly.
Continue with reactive widgets.
