Unified Visual Synchrony: A Framework for Face-Gesture Coherence in Multimodal Human-AI Interaction. - Saule Kudubayeva; Yernar Seksenbayev; Aigerim Yerimbetova; Elmira Daiyrbayeva; Bakzhan Sakenov; Duman Telman; Mussa Turdalyuly (Big Data Cogn. Comput., 2026)