The current diff screen only logs the undo/rollback events for Patroller Tasks.

This task is to add EditAttemptStepEvent for undo and rollback actions.

This ticket will introduce the new editor_interface: undo and rollback
This will use the other editor_interface to log undo/rollback action. If we want a different editor_interface, then we will need to update the schema.

action=init
When entering the diff screen

action=saveIntent
When clicking on the "Undo" button

action=saveAttempt
When the undo/rollback dialog is shown

action=saveSuccess
Undo/rollback action executed successfully

action=saveFailure
Undo/rollback action failed

@SNowick_WMF Please let me know if you want to use other editor_interface.