fix(rectification): ask tie-break questions before the range card (BUG-685/686/687)

Close leads hold delivery until unused D9/D10 style questions are asked. Tie-break POST merges the new turn into the transcript. Range copy no longer lists declined lines.

frontend/tests/rectification-agentic-entry.test.ts

@@ -621,7 +621,12 @@ test("time-selection cards use server adoption state and stay mutually exclusive
   // 保留语义：卡片仍由服务端 can_adopt / selection_allowed / receipt 授权，前端不自造候选。
   assert.match(chat, /canShowRectificationSelectionCards/);
   assert.match(chat, /applyLiveCandidateOffer/);
-  assert.match(chat, /persistedOfferFromTurn/);
+  // 原值: chat 源码含 persistedOfferFromTurn（mergeTurnQuestions 写在组件内）
+  // 新值: 合并抽到 rectification-snapshot-messages.ts，仍调用 persistedOfferFromTurn
+  // 原因: BUG-685 要把新 turn 并进对话区，合并逻辑必须可单测
+  const snapshotMessages = readFileSync(new URL("../src/lib/rectification-snapshot-messages.ts", import.meta.url), "utf8");
+  assert.match(snapshotMessages, /persistedOfferFromTurn/);
+  assert.match(chat, /applySnapshotTurnsToMessages|mergeTurnQuestions/);
   assert.match(chat, /resolveSelectionCardMessageKey/);
   assert.match(chat, /keepSelectionCardsWhileBusy/);
   assert.match(chat, /\.reverse\(\)\.find\(\(message\) => message\.candidateOffer\)/);