execute abstract method
Executes the action's operation.
Called when the action is triggered via keyboard shortcut, menu, or programmatically. Should perform the intended operation and return whether it succeeded.
Parameters:
controller: The node flow controller to operate oncontext: Optional build context for showing dialogs/snackbars
Returns: true if the action was successfully executed, false otherwise
Implementation
bool execute(NodeFlowController<T> controller, BuildContext? context);