Perfecting Human-AI Interaction at Clinical Scale. Turning Production Signals into Safer, More Human Conversations. - Subhabrata Mukherjee; Markel Sanz Ausin; Kriti Aggarwal; Debajyoti Datta; Shanil Puri; Woojeong Jin 001; Tanmay Laud; Neha Manjunath; Jiayuan Ding; Bibek Paudel; Jan Schellenberger; Zepeng Frazier Huo; et al. (CoRR, 2026)