fix(rectification): keep a live analyzing step and drop the range-stop exits

A completed tool left only checkmarks under 正在分析, so the run looked stuck. The composer and scoring-card 先这样 buttons were unused early exits.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/lib/rectification-activity-labels.ts

@@ -33,6 +33,9 @@ export const RECTIFICATION_ACTIVITY_PROGRESS_LABELS: Readonly<Record<PublicRecti
   preparing_result: "正在准备结果…",
 };
 
+/** Live label between a completed tool and the next tool or spoken answer. */
+export const RECTIFICATION_ANALYZING_LIVE_LABEL = "正在分析…";
+
 export const RECTIFICATION_SLOW_STEP_MS = 45_000;
 export const RECTIFICATION_AGENT_ATTEMPT_TIMEOUT_MS = 210_000;
 export const RECTIFICATION_TIMEOUT_WARN_BEFORE_MS = 20_000;

frontend/src/lib/rectification-timeline-adapter.ts

@@ -1,6 +1,7 @@
 import type { AgentActivityTraceItem } from "./agent-activity-trace.ts";
 import type { AgentActivityView } from "./chat-message-view.ts";
-import type { ConsultationTimelineRow } from "./consultation-run-timeline.ts";
+import type { ConsultationTimelineKind, ConsultationTimelineRow } from "./consultation-run-timeline.ts";
+import { RECTIFICATION_ANALYZING_LIVE_LABEL } from "./rectification-activity-labels.ts";
 import type { CompletedActivityReceiptView } from "./rectification-activity-receipt.ts";
 import { PUBLIC_RECTIFICATION_METHOD_LABELS } from "./rectification-varga-sentence.ts";
 
@@ -34,6 +35,12 @@ function isProgressLabel(label: string): boolean {
   return /^正在/.test(label.trim());
 }
 
+function liveRowKind(phase: AgentActivityView["phase"] | undefined, label: string): ConsultationTimelineKind {
+  if (phase === "answer-composition") return "write";
+  if (label === RECTIFICATION_ANALYZING_LIVE_LABEL) return "think";
+  return "calculate";
+}
+
 /**
  * Project the rectification agent's tool trace and receipt onto the same
  * timeline rows the consultation surface renders, so both sessions share one
@@ -76,10 +83,17 @@ export function rectificationTimelineRows(input: RectificationTimelineInput): Co
   if (!input.settled && !hasLiveRow && isProgressLabel(label)) {
     rows.push({
       id: RECTIFICATION_TIMELINE_LIVE_ID,
-      kind: input.activity?.phase === "answer-composition" ? "write" : "calculate",
+      kind: liveRowKind(input.activity?.phase, label),
       status: "live",
       label,
     });
+  } else if (!input.settled && !hasLiveRow && rows.length > 0) {
+    rows.push({
+      id: RECTIFICATION_TIMELINE_LIVE_ID,
+      kind: "think",
+      status: "live",
+      label: RECTIFICATION_ANALYZING_LIVE_LABEL,
+    });
   }
   return rows;
 }