Merge pull request #72 from braintrustdata/ark/spring-ai-revamp

spring ai bug fixes

Author: realark

braintrust-sdk/instrumentation/langchain_1_8_0/src/main/java/dev/braintrust/instrumentation/langchain/v1_8_0/WrappedHttpClient.java

@@ -226,9 +226,8 @@ private void finalizeSpan() {
                     root.set("usage", usageData);
                 }
 
-                long ttft = timeToFirstTokenNanos.get();
-                InstrumentationSemConv.tagLLMSpanResponse(
-                        span, providerName, toJson(root), ttft == 0L ? null : ttft);
+                Long ttft = timeToFirstTokenNanos.get();
+                InstrumentationSemConv.tagLLMSpanResponse(span, providerName, toJson(root), ttft);
             } catch (Exception e) {
                 log.debug("Failed to finalize streaming span", e);
             }