Hello and welcome back to TechCrunch’s China Roundup, a digest of recent events shaping the Chinese tech landscape and what they mean to people in the rest of the world. A tectonic shift is underway in how Beijing regulates and accesses the troves of citizen data collected by its tech giants. More details of China’s new cybersecurity rules have recently come to light as Didi, the SoftBank-backed ride-sharing dominator in China, became the target of the Chinese government’s latest effort to heighten data protection. This week, we look at what this…