Mengfan Li 0001 Xuanhua Shi Yang Deng 0002 RecToM: A Benchmark for Evaluating Machine Theory of Mind in LLM-based Conversational Recommender Systems. 2025 November abs/2511.22275 CoRR https://doi.org/10.48550/arXiv.2511.22275 db/journals/corr/corr2511.html#abs-2511-22275 streams/journals/corr