China’s DJI announced its first 360-degree drone on Thursday, directly challenging domestic rival Insta360 in a nascent market segment that is now at the centre of an escalating patent war.The new product, the DJI Avata 360, marks a significant expansion for the company beyond traditional aerial photography. The drone features a front-mounted omnidirectional camera capable of capturing high dynamic range (HDR) images at 8K resolution and 60 frames per second, according to official...