fix(web): exit rectification when the probe pool is exhausted (BUG-558)

Stop falling through to "say another event" after dated and occupation collect are done. Deliver an adopt path or a gate sentence, and add a spoken-collect stop control.

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

frontend/src/components/rectification-agentic-chat.tsx

@@ -167,11 +167,26 @@ function questionSourceFromSnapshot(value: unknown): "focus" | "unavailable" | n
 
 function RectificationReadonlyRange({
   range,
-}: Readonly<{ range: readonly [string, string] }>) {
+  onStop,
+}: Readonly<{
+  range: readonly [string, string];
+  onStop?: () => void;
+}>) {
+  if (!onStop) {
+    return (
+      <p className="rectification-readonly-range" role="status">
+        目前范围 {range[0]}–{range[1]}，还在收窄
+      </p>
+    );
+  }
   return (
-    <p className="rectification-readonly-range" role="status">
+    <button
+      type="button"
+      className="rectification-readonly-range"
+      onClick={onStop}
+    >
       目前范围 {range[0]}–{range[1]}，还在收窄
-    </p>
+    </button>
   );
 }
 
@@ -1080,23 +1095,27 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     action: typeof CHOICE_ACTION | typeof STOP_ACTION | typeof SKIP_PROBE_ACTION,
     optionId: ChoiceKey | "stop" | "skip_probe",
     override?: Readonly<{
-      focusId: string;
-      questionId: string | null;
+      focusId?: string;
+      questionId?: string | null;
       probeId?: string | null;
       caseRevision?: number | null;
     }>,
   ) => {
-    const focusId = override?.focusId ?? choiceCard?.focus_id;
-    if (!focusId || busy || readonly) return;
-    if (!override && !choiceCard) return;
-    if (!isPersistedFocusId(focusId)) {
+    const focusId = override?.focusId ?? choiceCard?.focus_id ?? (
+      action === STOP_ACTION && currentQuestion?.kind === "collect_spoken"
+        ? currentQuestion.focus_id
+        : null
+    );
+    if (busy || readonly) return;
+    if (action !== STOP_ACTION && (!focusId || (!override && !choiceCard))) return;
+    if (focusId && !isPersistedFocusId(focusId)) {
       setError("当前选择题已失效，请等待下一问。");
       return;
     }
-    const questionId = override?.questionId ?? choiceCard?.question_id;
+    const questionId = override?.questionId ?? choiceCard?.question_id ?? currentQuestion?.question_id ?? null;
     const probeId = override?.probeId ?? choiceCard?.probe_id;
     const expectedRevision = override?.caseRevision ?? choiceCard?.case_revision ?? 0;
-    const actionId = actionIdForChoice(focusId, optionId);
+    const actionId = actionIdForChoice(focusId ?? caseId, optionId);
     setError("");
     keyCounter.current += 1;
     const turnKey = keyCounter.current;
@@ -1104,7 +1123,7 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     const recordingLabel = RECTIFICATION_ACTIVITY_PROGRESS_LABELS.recording_answer;
     beginLiveRun(recordingLabel);
     setMessages((current) => [
-      ...markQuestionAnswered(current, focusId, optionId),
+      ...markQuestionAnswered(current, focusId ?? "", optionId),
       {
         role: "assistant",
         text: "",
@@ -1132,8 +1151,8 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
           requestId: actionId,
           action,
           actionId,
-          focusId,
-          questionId,
+          ...(focusId ? { focusId } : {}),
+          ...(questionId ? { questionId } : {}),
           probeId: probeId ?? null,
           optionId: optionId === "stop" ? undefined : optionId,
           expectedRevision,
@@ -1219,6 +1238,7 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     beginLiveRun,
     caseId,
     choiceCard,
+    currentQuestion,
     loadCaseSnapshot,
     onCompleted,
     onMessagesChange,
@@ -1523,9 +1543,19 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
   }
 
   function submitStop() {
-    if (!choiceCard) return;
-    if (choiceCard.skip_this_probe) {
-      void submitStructuredChoice(SKIP_PROBE_ACTION, "skip_probe");
+    if (choiceCard) {
+      if (choiceCard.skip_this_probe) {
+        void submitStructuredChoice(SKIP_PROBE_ACTION, "skip_probe");
+        return;
+      }
+      void submitStructuredChoice(STOP_ACTION, "stop");
+      return;
+    }
+    if (currentQuestion?.kind === "collect_spoken" && currentQuestion.focus_id) {
+      void submitStructuredChoice(STOP_ACTION, "stop", {
+        focusId: currentQuestion.focus_id,
+        questionId: currentQuestion.question_id,
+      });
       return;
     }
     void submitStructuredChoice(STOP_ACTION, "stop");
@@ -1686,7 +1716,10 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
                   />
                 )}
                 {showReadonlyRange && message.renderKey === latestSettledAssistant?.renderKey && candidateResult?.credibleRange && (
-                  <RectificationReadonlyRange range={candidateResult.credibleRange} />
+                  <RectificationReadonlyRange
+                    range={candidateResult.credibleRange}
+                    onStop={readonly || busy ? undefined : submitStop}
+                  />
                 )}
               </div>
             );
@@ -1746,6 +1779,15 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
               <span className="rectification-adopt-status__hint">之后新建对话即按此时间排盘。</span>
             </div>
           )}
+          {currentQuestion?.kind === "collect_spoken" && !readonly && !busy && (
+            <button
+              type="button"
+              className="rectification-collect-stop"
+              onClick={submitStop}
+            >
+              {CHOICE_STOP_LABEL}
+            </button>
+          )}
           <ChatComposer
             inputRef={composer}
             value={draft}