add originator to otel (#10826)

codex-rs/core/src/codex.rs

@@ -981,6 +981,7 @@ impl Session {
             auth.and_then(CodexAuth::get_account_id),
             auth.and_then(CodexAuth::get_account_email),
             auth_mode,
+            crate::default_client::originator().value,
             config.otel.log_user_prompt,
             terminal::user_agent(),
             session_configuration.session_source.clone(),
@@ -5775,6 +5776,7 @@ mod tests {
             None,
             Some("test@test.com".to_string()),
             Some(TelemetryAuthMode::Chatgpt),
+            "test_originator".to_string(),
             false,
             "test".to_string(),
             session_source,