HapticVLA: Contact-Rich Manipulation via Vision-Language-Action Model without Inference-Time Tactile Sensing. - Konstantin Gubernatorov; Mikhail Sannikov; Ilya Mikhalchuk; Egor Kuznetsov; Makar Artemov; Ogunwoye Faith Ouwatobi; Marcelino Julio Fernando; Artem Asanov; Ziang Guo; Dzmitry Tsetserukou (CoRR, 2026)