fix(web-probe): preserve observe analyze drilldown fields (#793)

Co-authored-by: Codex <codex@noreply.local>

scripts/src/hwlab-node-web-observe-runner-source.ts

@@ -4357,6 +4357,9 @@ function buildLoadingMetrics(samples, timeline) {
         ownerKey: owner.ownerKey,
         ownerKind: owner.ownerKind,
         ownerLabel: owner.ownerLabel,
+        ownerSessionId: owner.ownerSessionId ?? null,
+        ownerMessageId: owner.ownerMessageId ?? null,
+        ownerTraceId: owner.ownerTraceId ?? null,
         sampleCount: 0,
         occurrenceCount: 0,
         maxSimultaneousCount: 0,
@@ -4372,6 +4375,9 @@ function buildLoadingMetrics(samples, timeline) {
       existing.maxSimultaneousCount = Math.max(existing.maxSimultaneousCount, owner.count);
       existing.lastAt = event.ts;
       existing.lastSeq = event.seq;
+      for (const key of ["ownerSessionId", "ownerMessageId", "ownerTraceId"]) {
+        if (!existing[key] && owner[key]) existing[key] = owner[key];
+      }
       if (Number.isFinite(Number(event.promptIndex))) existing.promptIndexes.add(Number(event.promptIndex));
       existing.events.push({ ...event, loadingCount: owner.count, owners: [owner] });
       ownerMap.set(owner.ownerKey, existing);