feat: introduce Maestro::initialize function that creates the maestro instance and ensure_ready the topology as well. Also refactor all relevant examples to use this new initialize function

examples/tui/src/main.rs

@@ -9,8 +9,7 @@ use harmony::{
         load_balancer::LoadBalancerScore,
     },
     topology::{
-        BackendServer, HAClusterTopology, HealthCheck, HttpMethod, HttpStatusCode,
-        LoadBalancerService,
+        BackendServer, DummyInfra, HealthCheck, HttpMethod, HttpStatusCode, LoadBalancerService,
     },
 };
 use harmony_macros::ipv4;
@@ -18,8 +17,8 @@ use harmony_macros::ipv4;
 #[tokio::main]
 async fn main() {
     let inventory = Inventory::autoload();
-    let topology = HAClusterTopology::autoload();
-    let mut maestro = Maestro::new(inventory, topology);
+    let topology = DummyInfra {};
+    let mut maestro = Maestro::initialize(inventory, topology).await.unwrap();
 
     maestro.register_all(vec![
         Box::new(SuccessScore {}),