LACY: Simulating Expert Mentoring for Software Onboarding with Code Tours. - Zeynep Begüm Kara; Aytekin Ismail; Ece Ates; Izgi Nur Tamci; Zehra Iyigün; Selin Sirin Aslangül; Ömercan Devran; Baykal Mehmet Uçar; Eray Tüzün (CoRR, 2026)