PoliLegalLM: A Technical Report on a Large Language Model for Political and Legal Affairs. - Yuting Huang 001; Yinghao Hu 001; Qian Xiao; Wenlin Zhong; Yiquan Wu 001; Taishi Zhou; Moke Chen; Changlong Sun; Kun Kuang 001; Fei Wu 001 (CoRR, 2026)