Function apply_with_surface_checked 

pub async fn apply_with_surface_checked(
    submission: BuilderSubmission,
    config: &mut Config,
    surface: Surface,
    staged_check: &(dyn Fn(&Config) -> Result<(), String> + Sync),
) -> Result<QuickstartApplyOutcome, Vec<QuickstartError>>

One-shot application with a policy compile check before persistence.