Replace per-row inline action buttons (Edit, Activate/Deactivate, Delete,
Grant SuperUser) across all six admin tables with a Radix DropdownMenu
triggered by a ⋯ button. Introduces RowActionsMenu/Item/DestructiveItem/
Separator primitives and a DeleteConfirmDialog modal. Each Edit*Button
gains controlled open/onOpenChange props so the dialog can be driven from
the table's per-row ActionsMenu sub-component. Toggle and delete actions
use useTransition + router.refresh() directly in the table.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
