feat(api-server): add container loadtest observability

server-rs/crates/api-server/src/main.rs

@@ -56,6 +56,7 @@ mod password_management;
 mod phone_auth;
 mod platform_errors;
 mod profile_identity;
+mod process_metrics;
 mod prompt;
 mod puzzle;
 mod puzzle_agent_turn;
@@ -140,6 +141,8 @@ async fn run_server(config: AppConfig) -> Result<(), io::Error> {
             enabled: config.otel_enabled,
         },
     )?;
+    process_metrics::register_process_metrics();
+    telemetry::register_http_runtime_metrics();
 
     let bind_address = config.bind_socket_addr();
     let listen_backlog = config.listen_backlog;