[codex][app-server] introduce codex/event/raw_item events (#5578)

codex-rs/mcp-server/src/codex_tool_runner.rs

@@ -285,6 +285,7 @@ async fn run_codex_tool_session_inner(
                     | EventMsg::UserMessage(_)
                     | EventMsg::ShutdownComplete
                     | EventMsg::ViewImageToolCall(_)
+                    | EventMsg::RawResponseItem(_)
                     | EventMsg::EnteredReviewMode(_)
                     | EventMsg::ItemStarted(_)
                     | EventMsg::ItemCompleted(_)