Update tests for history and hook API changes (#34403)

## What changed

- Assert truncated audio history through `ContextManager::raw_items()`.
- Initialize `additional_context_limit` in the quoted Windows hook command test.

GitOrigin-RevId: 43c19804e558b7a11fc17590506ec6ec7f3a9897

codex-rs/core/src/context_manager/history_tests.rs

@@ -2120,8 +2120,8 @@ fn record_items_omits_audio_that_exceeds_the_output_budget() {
     history.record_items([&item], TruncationPolicy::Tokens(50));
 
     assert_eq!(
-        history.items,
-        vec![ResponseItem::FunctionCallOutput {
+        history.raw_items(),
+        &[ResponseItem::FunctionCallOutput {
             id: None,
             call_id: "call-audio".to_string(),
             output: FunctionCallOutputPayload {