First test kinda working

substrate/src/main.rs

@@ -1,9 +1,10 @@
-mod transport;
-mod config;
-
 use bevy::prelude::*;
 use tracing_subscriber::EnvFilter;
-use crate::config::AppConfig;
+
+use substrate::config::AppConfig;
+use substrate::observability::ObservabilityPlugin;
+use substrate::transport;
+use substrate::world::WorldPlugin;
 
 fn main() {
     tracing_subscriber::fmt()
@@ -12,12 +13,22 @@ fn main() {
         )
         .init();
 
+    // rustls 0.23 requires an explicit default crypto provider. Quinn's
+    // ServerConfig::with_single_cert otherwise panics at first use.
+    rustls::crypto::aws_lc_rs::default_provider()
+        .install_default()
+        .expect("install rustls default crypto provider");
+
     let config = AppConfig::load("config.toml").expect("Failed to load config");
     tracing::info!(?config, "substrate starting");
 
+    // Plugin order matters: EcsQuicTransportPlugin inserts the TokioHandle
+    // resource ObservabilityPlugin reads in its `build()`.
     App::new()
         .insert_resource(config)
         .add_plugins(MinimalPlugins)
-        .add_plugins(transport::ecs::EcsQuicTransportPlugin {})
+        .add_plugins(transport::ecs::EcsQuicTransportPlugin)
+        .add_plugins(WorldPlugin)
+        .add_plugins(ObservabilityPlugin)
         .run();
 }