Generally revise youth court laws

This bill revises Montana's youth court laws to clarify when certain serious offenses committed by minors can be prosecuted in adult district court instead of juvenile court. It directly affects youth aged 12 and older charged with specific crimes such as sexual assault, homicide, kidnapping, and drug offenses, as well as county attorneys and district courts who handle these cases. The legislation adds new offenses to the list of crimes that may be filed in district court, allows youth to waive their right to a transfer hearing, and establishes clearer procedures for transferring cases between juvenile and adult court systems. Additionally, it provides remedies when youth fail to meet the terms of consent decrees and updates laws related to consent decrees to ensure consistent application across the justice system.