feat: include network_proxy in /debug-config

codex-rs/exec/tests/event_processor_with_json_output.rs

@@ -98,6 +98,7 @@ fn session_configured_produces_thread_started_event() {
             history_log_id: 0,
             history_entry_count: 0,
             initial_messages: None,
+            network_proxy: None,
             rollout_path: Some(rollout_path),
         }),
     );