Function compose_profile_runtime 

pub fn compose_profile_runtime(
    context: &ApplicabilityContextV1,
    profile_set: &ProfileSetV1,
    rule_set: &CompositionRuleSetV1,
    contributions: &[ObligationContributionV1],
    exceptions: &[ProfileExceptionBundleV1],
    generated_at: impl Into<String>,
) -> Result<CompositionOutcomeV1, CompositionError>

Folds profile contributions and admitted exceptions into the effective constitution outputs.