Improve active run timing and turn limits

frontend/app/components/assistant-ui/thread-list.tsx

@@ -426,7 +426,12 @@ export function toReplayRepository(
 			role: message.role,
 			parts,
 			...(message.role === "assistant"
-				? { metadata: { sessionId: session.session_id ?? fallbackSessionId } }
+				? {
+						metadata: {
+							sessionId: session.session_id ?? fallbackSessionId,
+							elapsedMs: normalizeElapsedMs(message.metadata?.elapsed_ms),
+						},
+					}
 				: {}),
 		} as UIMessage;
 		const threadMessage = {
@@ -442,7 +447,10 @@ export function toReplayRepository(
 							unstable_annotations: [],
 							unstable_data: [],
 							steps: [],
-							custom: { sessionId: session.session_id ?? fallbackSessionId },
+							custom: {
+								sessionId: session.session_id ?? fallbackSessionId,
+								elapsedMs: normalizeElapsedMs(message.metadata?.elapsed_ms),
+							},
 						},
 					}
 				: { metadata: { custom: {} } }),
@@ -536,8 +544,9 @@ function buildActiveRunParts(runStatus: ClawActiveRunStatus) {
 			? "当前会话已有任务在执行，本轮正在排队。"
 			: runStatus.current_stage || "后端正在执行这个会话。";
 	const reasoningText = eventLines.length ? eventLines.join("\n") : fallback;
+	const runStartedAtMs = normalizeRunTimestampMs(runStatus.started_at);
 	return [
-		{ type: "reasoning", text: reasoningText },
+		{ type: "reasoning", text: reasoningText, runStartedAtMs },
 		...buildRunToolParts(runStatus.events ?? []),
 	];
 }
@@ -694,6 +703,11 @@ function normalizeRunTimestampMs(value: unknown) {
 	return value < 10_000_000_000 ? Math.round(value * 1000) : Math.round(value);
 }
 
+function normalizeElapsedMs(value: unknown) {
+	if (typeof value !== "number" || !Number.isFinite(value)) return undefined;
+	return Math.max(0, Math.round(value));
+}
+
 function findLastAssistantContentIndex(messages: readonly ClawStoredMessage[]) {
 	for (let index = messages.length - 1; index >= 0; index -= 1) {
 		const message = messages[index];