Enable exec-server network policy callbacks

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

@@ -539,6 +539,19 @@ impl ExecServerClient {
                     return;
                 };
                 match event {
+                    RpcClientEvent::Request(request) => {
+                        let error = crate::rpc::method_not_found(format!(
+                            "exec-server client does not implement `{}` yet",
+                            request.method
+                        ));
+                        if rpc_client.respond_error(request.id, error).await.is_err() {
+                            inner.request_recovery(
+                                rpc_client,
+                                disconnected_message(/*reason*/ None),
+                            );
+                            return;
+                        }
+                    }
                     RpcClientEvent::Notification(notification) => {
                         if let Err(error) = handle_server_notification(&inner, notification).await {
                             rpc_client.close_transport().await;

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

@@ -15,6 +15,7 @@ mod fs_helper_main;
 mod fs_sandbox;
 mod local_file_system;
 mod local_process;
+mod network_policy_decisions;
 mod noise_channel;
 mod noise_relay;
 mod process;
@@ -27,6 +28,7 @@ mod remote_file_system;
 mod remote_process;
 mod resolved_capability;
 mod rpc;
+mod rpc_server_requests;
 mod runtime_paths;
 mod sandboxed_file_system;
 mod server;