fix(rectification): keep targeted collect cards tappable after snapshot reread (BUG-669~671)

GET dropped the A–D card when the recast had no choice_frame, so a refresh left a disabled card and a collect-wait. Project from the persisted copy, rebuild the keep frame, and send a dead choice to repair-exit.

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

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

@@ -68,6 +68,7 @@ import {
   searchWindowFromSnapshot,
   caseStageFromSnapshot,
   interviewCollectWaiting,
+  interviewChoiceCardUnavailable,
   interviewStopReasonFromSnapshot,
   interviewSessionOutcomeFromSnapshot,
   type RectificationCaseSnapshotPayload,
@@ -1482,6 +1483,8 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     latestLiveQuestion
     && latestLiveQuestion.options?.length === 4
     && currentQuestion?.focus_id === latestLiveQuestion.focus_id
+    && choiceCard
+    && choiceCard.focus_id === latestLiveQuestion.focus_id
     && (latestLiveQuestion.kind === "choice" || latestLiveQuestion.kind === "reverse_verify")
     && !busy
     && !readonly
@@ -1541,12 +1544,17 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     ? currentQuestion.prompt
     : null;
   const resumableCase = caseStatus !== null && isResumableStatus(caseStatus);
+  const deadChoice = interviewChoiceCardUnavailable({
+    questionKind: currentQuestion?.kind,
+    hasChoiceCard: Boolean(choiceCard),
+  });
   const liveQuestionOnMessages = Boolean(
     latestSettledAssistant
     && latestSettledAssistant.question
     && currentQuestion
     && latestSettledAssistant.question.focus_id === currentQuestion.focus_id
-    && !questionIsAnswered(latestSettledAssistant.question),
+    && !questionIsAnswered(latestSettledAssistant.question)
+    && !deadChoice,
   );
   // The gap between a settled turn and its next question has two visible
   // states: `preparing` (one live timeline row, timed refetches) and
@@ -1562,11 +1570,11 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
   const questionGap = rectificationQuestionGapState({
     liveQuestionVisible: liveQuestionOnMessages,
     questionMissing: currentQuestion === null,
-    questionLoadFailed: questionSource === "unavailable",
-    questionPersisted: Boolean(currentQuestion?.prompt && questionSource === "focus"),
+    questionLoadFailed: questionSource === "unavailable" || deadChoice,
+    questionPersisted: Boolean(currentQuestion?.prompt && questionSource === "focus") && !deadChoice,
     offerAwaitingReader: showSelectionCards && !candidateResult?.selectedTime,
     nextUserActionId,
-    collectWaiting,
+    collectWaiting: collectWaiting && !deadChoice,
     busy,
     readonly,
     regenerating: regeneratingMessageKey !== null,
@@ -1765,7 +1773,15 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
                 )
               ),
             );
-            const embeddedCard = question ? choiceCardFromQuestion(question, liveQuestion ? choiceCard : null) : null;
+            const unansweredDeadChoice = Boolean(
+              question
+              && !questionIsAnswered(question)
+              && !liveQuestion
+              && (question.kind === "choice" || question.kind === "reverse_verify")
+            );
+            const embeddedCard = question && !unansweredDeadChoice
+              ? choiceCardFromQuestion(question, liveQuestion ? choiceCard : null)
+              : null;
             const afterAnswer = question && displayedMessage.state === "settled"
               ? (
                 <div className="rectification-message-question">