GetTaskOutputTool
* add task output tool and more * update baseline * Cap max chars * add to agent tasks instructions * follow run task example * update baseline * fix some issues * revert a change * update baseline * undo update baseline * rm files * fix issue * empty string instead of null * Update baseline * align with run task * fix group --------- Co-authored-by: Daniel Imms <2193314+Tyriar@users.noreply.github.com>