保留 DirectProject 历史测试适配入口

将测试用用户与助手消息写入原始 Responses item

不恢复生产环境旧聊天持久化逻辑

apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime.rs

@@ -4230,6 +4230,34 @@ pub(crate) async fn chat_with_game_creator_home_direct_codex(
     run_direct_game_creator_home_turn(&prompt, attachments.as_deref().unwrap_or_default()).await
 }
 
+#[cfg(test)]
+fn persist_direct_codex_user_prompt_at(
+    root: &Path,
+    client_turn_id: &str,
+    prompt: &str,
+) -> Result<(), String> {
+    let item = direct_project_local_message_item(
+        "user",
+        prompt,
+        Some(&format!("direct-codex:{client_turn_id}:user")),
+    )?;
+    append_direct_project_history_item_at(root, &item)
+}
+
+#[cfg(test)]
+fn persist_direct_codex_assistant_reply_at(
+    root: &Path,
+    client_turn_id: &str,
+    reply: &str,
+) -> Result<(), String> {
+    let item = direct_project_local_message_item(
+        "assistant",
+        reply,
+        Some(&format!("direct-codex:{client_turn_id}:assistant")),
+    )?;
+    append_direct_project_history_item_at(root, &item)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;