logger.warn("[LLM] Chat request failed. llmType={}, error={}, elapsedTime={}ms", llmType, e.getMessage(),
                    System.currentTimeMillis() - startTime);
            throw e;
        } catch (final Exception e) {
            logger.warn("[LLM] Chat request failed with unexpected error. llmType={}, error={}, elapsedTime={}ms", llmType, e.getMessage(),
                    System.currentTimeMillis() - startTime, e);

					// time elapsed
					timeElapsed := time.Since(startTime)
					// log error only if more than a second has elapsed
					if timeElapsed > time.Second {
						reqInfo.AppendTags("elapsedTime",
							humanize.RelTime(startTime,
								startTime.Add(timeElapsed),
								"elapsed",
								"",
							))
						ctx := logger.SetReqInfo(GlobalContext,
							reqInfo)

            });
            resultBuf.append("Exported ").append(count).append(" documents.");
            if (logger.isInfoEnabled()) {
                logger.info("[EXPORT] Completed: exportedCount={}, elapsedTime={}ms", count, System.currentTimeMillis() - startTime);
            }
        } catch (final Exception e) {
            logger.warn("Failed to export documents.", e);