In the glow of her laptop screen, 31-year-old Zhang Rui typed carefully, following a prompt she’d found on Chinese social media: “You are a BaZi master. Analyze my fate—describe my physical traits, key life events, and financial fortune. I am a female, born June 17, 1993, at 4:42 a.m. in Hangzhou.” DeepSeek R1, China’s most…