SPRINGFIELD — In ruling against de facto mandatory life sentences for juveniles earlier this year, the state’s top court didn’t specify what length of sentence effectively constituted a lifelong punishment.But a recent batch of supervisory orders may have provided more guidance on the issue.The Illinois Supreme Court has ordered lower courts in seven cases to vacate judgments based on its holding in People v. Zachary Reyes, No. 119271, the case in which the justices held a 97-year prison term for a …