add session ID everywhere

codex-rs/exec/src/lib.rs

@@ -1052,6 +1052,7 @@ fn session_configured_from_thread_start_response(
     config: &Config,
 ) -> Result<SessionConfiguredEvent, String> {
     session_configured_from_thread_response(
+        &response.session_id,
         &response.thread.id,
         response.thread.name.clone(),
         response.thread.path.clone(),
@@ -1076,6 +1077,7 @@ fn session_configured_from_thread_resume_response(
     config: &Config,
 ) -> Result<SessionConfiguredEvent, String> {
     session_configured_from_thread_response(
+        &response.session_id,
         &response.thread.id,
         response.thread.name.clone(),
         response.thread.path.clone(),
@@ -1109,6 +1111,7 @@ fn review_target_to_api(target: ReviewTarget) -> ApiReviewTarget {
     reason = "session mapping keeps explicit fields"
 )]
 fn session_configured_from_thread_response(
+    session_id: &str,
     thread_id: &str,
     thread_name: Option<String>,
     rollout_path: Option<PathBuf>,
@@ -1122,11 +1125,13 @@ fn session_configured_from_thread_response(
     cwd: AbsolutePathBuf,
     reasoning_effort: Option<codex_protocol::openai_models::ReasoningEffort>,
 ) -> Result<SessionConfiguredEvent, String> {
+    let session_id = SessionId::from_string(session_id)
+        .map_err(|err| format!("session id `{session_id}` is invalid: {err}"))?;
     let thread_id = ThreadId::from_string(thread_id)
         .map_err(|err| format!("thread id `{thread_id}` is invalid: {err}"))?;
 
     Ok(SessionConfiguredEvent {
-        session_id: SessionId::from(thread_id),
+        session_id,
         thread_id,
         forked_from_id: None,
         thread_name,

codex-rs/exec/src/lib_tests.rs

@@ -437,6 +437,14 @@ async fn session_configured_from_thread_response_uses_review_policy_from_respons
     let event = session_configured_from_thread_start_response(&response, &config)
         .expect("build bootstrap session configured event");
 
+    assert_eq!(
+        event.session_id.to_string(),
+        "67e55044-10b1-426f-9247-bb680e5fe0c7"
+    );
+    assert_eq!(
+        event.thread_id.to_string(),
+        "67e55044-10b1-426f-9247-bb680e5fe0c8"
+    );
     assert_eq!(event.approvals_reviewer, ApprovalsReviewer::AutoReview);
 }
 
@@ -461,6 +469,7 @@ async fn session_configured_from_thread_response_uses_permission_profile_from_re
 
 fn sample_thread_start_response() -> ThreadStartResponse {
     ThreadStartResponse {
+        session_id: "67e55044-10b1-426f-9247-bb680e5fe0c7".to_string(),
         thread: codex_app_server_protocol::Thread {
             id: "67e55044-10b1-426f-9247-bb680e5fe0c8".to_string(),
             forked_from_id: None,