feat(rectification): the server writes the evidence recap — 「记下了 N 件事」 with the ledger list collapsed under it (BUG-1136)

- Evidence turns whose batch accepted items: the body is the server recap
  built from those items (two or fewer listed inline, more as a count);
  the model no longer restates them (both prompt sets updated).
- The case snapshot carries each assistant turn's recorded evidence from
  the ledger (rejected/superseded excluded); the message shows it in a
  collapsed <details> list when more than two.
- Chinese date labels read straight into the event phrase (2016年入学);
  ISO labels keep their space.
- Assertions updated with original/new/reason notes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

frontend/src/components/rectification-message-entry.tsx

@@ -45,6 +45,8 @@ export type RenderMessage = ChatMessageView & {
   question?: TurnQuestion;
   candidateOffer?: Readonly<{ resultId: string }>;
   segmentConsistency?: SegmentSummary;
+  /** BUG-1136: what this evidence turn recorded, from the ledger. */
+  recordedEvidence?: readonly string[];
 };
 
 export type RectificationMessageActions = Readonly<{
@@ -167,7 +169,20 @@ function RectificationMessageEntryView({
     && (questionIsDeadUnanswered(question)
       || (currentQuestionFocusId !== null && currentQuestionFocusId !== question.focus_id)),
   );
-  const afterAnswer = question && displayedMessage.state === "settled" && !replacedQuestion
+  // BUG-1136 (D2): more than two recorded items read as 「记下了 N 件事」 in
+  // the body; the items themselves (ledger lines) sit here, collapsed.
+  const recorded = settled && (message.recordedEvidence?.length ?? 0) > 2
+    ? message.recordedEvidence!
+    : null;
+  const recordedList = recorded ? (
+    <details className="rectification-recorded-evidence">
+      <summary>{`看记下的 ${recorded.length} 件`}</summary>
+      <ul>
+        {recorded.map((line, index) => <li key={`${index}:${line}`}>{line}</li>)}
+      </ul>
+    </details>
+  ) : null;
+  const questionBlock = question && displayedMessage.state === "settled" && !replacedQuestion
     ? (
       <div className="rectification-message-question">
         <p className="rectification-message-question__prompt">{question.prompt}</p>
@@ -190,6 +205,9 @@ function RectificationMessageEntryView({
         )}
       </div>
     )
+    : null;
+  const afterAnswer = recordedList || questionBlock
+    ? <>{recordedList}{questionBlock}</>
     : undefined;
 
   return (