BOISE, Idaho—An Idaho judge ruled Monday that a mother accused of conspiring to kill her children, her estranged husband, and a lover’s wife is now mentally competent to stand trial on some of the charges in Idaho. Daybell and her new husband, Chad Daybell, face numerous charges in the complicated case involving allegations of bizarre spiritual beliefs involving “zombies” and doomsday predictions. Prosecutors have said that Lori and Chad Daybell espoused religious beliefs in an effort to encourage or justify the murders. The case against her had been held for months after Judge Steven Boyce ordered her committed to a mental facility so she could undergo treatment in an effort to make her mentally fit enough to assist in her own defense. Boyce’s new order said Lori Vallow Daybell “is restored to competency and is fit to proceed” in the Idaho murder case. He did not provide other details about …