In-person job interviews are making a comeback for some tech firms.SeongJoon Cho/Bloomberg via Getty ImagesStanford economics professor Nick Bloom said AI is causing tech firms to revive in-person interviews.Coding tests are harder to trust as candidates can use AI for real-time answers, Bloom said."Are you interviewing Claude or the person?" Bloom said.Tech companies are bringing job candidates back into the office for an extra screening measur…