pub trait CollectiveAdvantage {
// Required methods
fn audit_commercial_compliance(&self, aid: AID) -> bool;
fn calculate_advantage_multiplier_f64(&self, aid: AID) -> f64;
fn upgrade_participant_tier_128(&mut self, aid: AID, volume_p_t_128: u128);
fn report_commercial_homeostasis(&self) -> HomeostasisScore;
}