codex: address PR review feedback (#17578)

codex-rs/core/src/pending_input.rs

@@ -1,6 +1,6 @@
 //! Pending input queued for delivery into a future or active regular turn.
 //!
-//! Most pending input is an ordinary model input item. Generated input carries
+//! Most pending input is an ordinary model input item. Injected messages carry
 //! the model-visible item plus a separate display event so clients can render
 //! the human-facing content without parsing the XML envelope recorded in model
 //! history.

codex-rs/rollout/src/policy.rs

@@ -93,6 +93,7 @@ fn should_persist_event_msg_extended(ev: &EventMsg) -> bool {
 fn event_msg_persistence_mode(ev: &EventMsg) -> Option<EventPersistenceMode> {
     match ev {
         EventMsg::UserMessage(_)
+        | EventMsg::InjectedMessage(_)
         | EventMsg::AgentMessage(_)
         | EventMsg::AgentReasoning(_)
         | EventMsg::AgentReasoningRawContent(_)