Miles Taylor, a former U.S. Department of Homeland Security turned fierce anti-Trump critic, announced the rollout of a new app designed to alert people about plans to open immigration detention facilities in an appearance on “The Rachel Maddow Show” in late April.Roughly 72 hours later, a former programmer linked to Elon Musk’s DOGE with a large X following publicly warned about data vulnerabilities on the app while predicting that Taylor would…