A woman who died after being rescued from a three-alarm house fire in Southbridge Monday afternoon has been identified as 68-year-old Elizabeth Haight, the Worcester County District Attorney’s Office said Wednesday.Firefighters responded to a home at 417 South St. just after 3 p.m. and found heavy smoke and flames coming from the windows, the Southbridge Fire Department said Monday. Neighbors informed first responders that a first-floor resident…