docs: add Cotton & Leonard (2026) BiomechAgent paper

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: dimitri-yatsenko

src/about/publications.md

@@ -6,6 +6,8 @@ If your work uses DataJoint or DataJoint Elements, please cite the respective
 
 ## 2026
 
++ Cotton, R. J. & Leonard, T. (2026). [BiomechAgent: AI-Assisted Biomechanical Analysis Through Code-Generating Agents](https://doi.org/10.48550/arXiv.2602.06975). *arXiv*.
+
 + Sun, X., Comrie, A. E., Kahn, A. E., Monroe, E. J., Joshi, A., Guidera, J. A., Denovellis, E. L., Krausz, T. A., Zhou, J., Thompson, P., Hernandez, J., Yorita, A., Haque, R., Berke, J. D., Daw, N. D. & Frank, L. M. (2026). [Meta-learning is expressed through altered prefrontal cortical dynamics](https://doi.org/10.64898/2026.01.01.697272). *bioRxiv*.
 
 ## 2025