For some years now, China’s annual gathering of its national legislature has been an increasingly disciplined and choreographed affair — its muted vibes practically an echo of deepening concern about domestic stagnation.Not this time. The National People’s Congress seven-day gathering, which concluded Tuesday in Beijing, came on the heels of a breakthrough in artificial intelligence by China’s home-grown startup DeepSeek that’s fired up investors, politicians and even regulators. It also followe...