In some Chinese workplaces, employers use office Wi-fi, surveillance cameras and even smart seats to monitor what staff do, say and search online.Workers’ Daily reported that a woman working at a technology company in Guangzhou, southern China, discovered that a camera had been installed above her desk after she declined to go on a business trip because she was ill.In January, she said a manager warned her not to use private group chats during office hours.After checking the camera’s storage...