Graduate student workers at New York University called off a planned strike early Tuesday after they reached a last-minute union contract agreement with administrators. Members of the Graduate Student Organizing Committee said the deal includes significant wins for the United Auto Workers-affiliated union, including a 4 percent raise this year for fully funded teaching assistants and a “landmark” family health care benefit. Teaching and research assistants at other private institutions -- where graduate student union bids have faced legal challenges in recent years -- also praised the agreement, calling it inspirational to their cause.