feat: exec-server prep for unified exec

codex-rs/exec-server/src/bin/codex-exec-server.rs

@@ -1,4 +1,5 @@
 use clap::Parser;
+use tracing_subscriber::EnvFilter;
 
 #[derive(Debug, Parser)]
 struct ExecServerArgs {
@@ -13,6 +14,12 @@ struct ExecServerArgs {
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    let env_filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("warn"));
+    let _ = tracing_subscriber::fmt()
+        .with_env_filter(env_filter)
+        .with_target(false)
+        .try_init();
+
     let args = ExecServerArgs::parse();
     codex_exec_server::run_main_with_listen_url(&args.listen).await
 }