fix(workbench): stabilize visible trace timing rows (#2006)

tools/src/hwlab-cli/trace-renderer.ts

@@ -266,7 +266,7 @@ function traceNoiseSummaryRow(trace: Record<string, unknown>, events: TraceEvent
     rowId: "trace-noise-summary",
     seq: traceEventDisplaySeq(lastEvent),
     tone: lastEvent ? traceEventTone(lastEvent) : "source",
-    header: `${traceEventClock(lastEvent, options)}  Trace ${status}，等待可读事件`,
+    header: `Trace ${status}，等待可读事件`,
     body: `已隐藏 ${events.length} 条 AgentRun backend 状态事件。最新原始事件：${lastLabel}。`,
     bodyFormat: "text"
   };

web/hwlab-cloud-web/src/components/workbench/ConversationPanel.vue

@@ -321,7 +321,23 @@ function maxDefinedDurationMs(...values: Array<number | undefined>): number | nu
 }
 
 function messageDurationFloorKey(message: ChatMessage): string {
-  return firstNonEmptyString(message.id, message.runnerTrace?.traceId, message.traceId) ?? "unknown-agent-message";
+  const primary = firstNonEmptyString(message.traceId, message.runnerTrace?.traceId, message.turnId, message.id) ?? "unknown-agent-message";
+  migrateVisibleTimingAliases(primary, [message.id, message.runnerTrace?.traceId, message.traceId, message.turnId]);
+  return primary;
+}
+
+function migrateVisibleTimingAliases(primary: string, aliases: unknown[]): void {
+  for (const aliasValue of aliases) {
+    if (typeof aliasValue !== "string") continue;
+    const alias = aliasValue.trim();
+    if (!alias || alias === primary) continue;
+    const timingSample = visibleTimingSamples.get(alias);
+    if (timingSample && !visibleTimingSamples.has(primary)) visibleTimingSamples.set(primary, { ...timingSample });
+    const displayedDuration = displayedDurationFloorMs.get(alias);
+    if (displayedDuration !== undefined && displayedDurationFloorMs.get(primary) === undefined) displayedDurationFloorMs.set(primary, displayedDuration);
+    const sealedDuration = sealedDurationMs.get(alias);
+    if (sealedDuration !== undefined && sealedDurationMs.get(primary) === undefined) sealedDurationMs.set(primary, sealedDuration);
+  }
 }
 
 function messageActivityMeta(message: ChatMessage): { text: string; label: string } | null {