If a baligha girl is praying fajr in Jamaat in the center of the first row of women but during the prayer she realizes she hasn’t done wudhu, should she stay in salatul jamat till the end and then do it over after it ends or can she leave the jamaat and do wudhu and come back?
Will the rest of the ladies lose the jamaat connection if she stays without wudhu? If she leaves to perform wudhu?

Up to her leave it or not. If there is not too much gap between, then jamat is ok