Function run_voting_multi 

pub async fn run_voting_multi(
    multi_llm: MultiModelManager,
    config: Config,
    _ravenfabric: Option<RavenFabricClient>,
    pattern_config: PatternConfig,
    healing_engine: Option<Arc<Mutex<SelfHealingEngine>>>,
) -> Result<()>

Run voting mode with multiple LLM providers