Native swipe actions

List rows and SwipeRow elements inside a VStack use native AppKit/UIKit table swipe actions. The controller receives a one-based row index and a plain row record for List, or the declared rowId and row record for SwipeRow.

<List id="tasks" data="tasks" swipeLeading="archive" swipeTrailing="delete"
      swipeLeadingTitle="Archive" swipeTrailingTitle="Delete"
      swipeTrailingRole="destructive" fullSwipe="true">
  <Column id="title" title="Task" />
</List>

<VStack maxWidth="infinity">
  <% for _, task in ipairs(smallTaskGroup) do %>
    <SwipeRow id="row_<%= task.id %>" rowId="<%= task.id %>"
              title="<%= task.title %>" status="<%= task.status %>"
              swipeLeading="archiveSmallTask" swipeTrailing="completeSmallTask"
              fullSwipe="true" maxWidth="infinity" />
  <% end %>
</VStack>

Resolve each action name through actions in the template render data. The controller calls a model mutation and updates only the affected native row. For a List removal, remove the model item and call list:removeRow(index - 1); the native removal method currently uses a zero-based index. For a SwipeRow status change, update its one-row table with clearRows() and addRow(). Neither operation reconstructs unrelated rows or the window.

UIKit uses UISwipeActionsConfiguration; fullSwipe="true" performs the first action on that edge. AppKit uses NSTableViewRowAction and owns the swipe behavior. Set swipeLeadingRole or swipeTrailingRole to destructive only for an action that removes data.