Fix live activity streaming and replay summary

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

@@ -86,6 +86,7 @@ type ClawRunEvent = {
 	tool_call_id?: string;
 	arguments?: unknown;
 	assistant_content?: string;
+	delta?: string;
 	ok?: boolean;
 	metadata?: {
 		output_preview?: unknown;
@@ -430,7 +431,12 @@ export function toReplayRepository(
 				? shouldShowAssistantText
 					? [...toolParts, { type: "text", text: content }]
 					: toolParts
-				: [{ type: "text", text: content }]
+				: message.role === "assistant" && elapsedMs !== undefined
+					? [
+							{ type: "reasoning", text: "思考并执行完成。", elapsedMs },
+							{ type: "text", text: content },
+						]
+					: [{ type: "text", text: content }]
 		) as UIMessage["parts"];
 		const replayParts = withReplayElapsedMs(parts, elapsedMs);
 		const uiMessage: UIMessage = {
@@ -599,6 +605,10 @@ function summarizeRunEvents(runStatus: ClawActiveRunStatus) {
 		if (event.type === "run_started") {
 			lines.push("后端已开始执行本轮任务。");
 		}
+		if (event.type === "content_delta" && event.delta) {
+			const note = event.delta.trim();
+			if (note && !isNoisyLiveDelta(note)) lines.push(note);
+		}
 		if (event.type === "tool_start") {
 			const stageNote =
 				typeof event.assistant_content === "string"
@@ -614,6 +624,9 @@ function summarizeRunEvents(runStatus: ClawActiveRunStatus) {
 				event.tool_name ? `工具完成 ${event.tool_name}` : "工具调用完成",
 			);
 		}
+		if (event.type === "tool_delta") {
+			lines.push(event.tool_name ? `${event.tool_name} 输出中` : "工具输出中");
+		}
 		if (event.type === "final_text_start") {
 			lines.push("正在整理回复");
 		}
@@ -627,6 +640,10 @@ function summarizeRunEvents(runStatus: ClawActiveRunStatus) {
 	return lines.slice(-40);
 }
 
+function isNoisyLiveDelta(value: string) {
+	return value === "。" || value === "，" || value === "," || value.length <= 1;
+}
+
 function buildRunToolParts(events: readonly ClawRunEvent[]) {
 	const resultById = new Map<string, ClawRunEvent>();
 	for (const event of events) {