Fix environment manager follow-up compile errors

Co-authored-by: Codex <noreply@openai.com>

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

@@ -175,7 +175,7 @@ pub struct ExecServerClient {
     inner: Arc<Inner>,
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone)]
 pub(crate) struct LazyRemoteExecServerClient {
     websocket_url: String,
     client: Arc<OnceCell<ExecServerClient>>,

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

@@ -246,8 +246,8 @@ mod tests {
         assert!(environment.remote_exec_server_client.is_none());
     }
 
-    #[test]
-    fn environment_manager_normalizes_empty_url() {
+    #[tokio::test]
+    async fn environment_manager_normalizes_empty_url() {
         let manager = EnvironmentManager::new(EnvironmentManagerArgs {
             exec_server_url: Some(String::new()),
             local_runtime_paths: None,
@@ -276,8 +276,8 @@ mod tests {
         assert!(manager.get_environment(REMOTE_ENVIRONMENT_ID).is_none());
     }
 
-    #[test]
-    fn environment_manager_reports_remote_url() {
+    #[tokio::test]
+    async fn environment_manager_reports_remote_url() {
         let manager = EnvironmentManager::new(EnvironmentManagerArgs {
             exec_server_url: Some("ws://127.0.0.1:8765".to_string()),
             local_runtime_paths: None,

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

@@ -25,6 +25,7 @@ pub use client_api::RemoteExecServerConnectArgs;
 pub use environment::CODEX_EXEC_SERVER_URL_ENV_VAR;
 pub use environment::Environment;
 pub use environment::EnvironmentManager;
+pub use environment::EnvironmentManagerArgs;
 pub use file_system::CopyOptions;
 pub use file_system::CreateDirectoryOptions;
 pub use file_system::ExecutorFileSystem;