fix(rectification): prevent silent collect focus stalls

frontend/src/app/api/rectification/agent/route.ts

@@ -5,6 +5,7 @@ import {
   evidenceLedgerFingerprint,
   loadV9CaseCompute,
   loadV9CaseDossier,
+  loadV9TurnReceipt,
   persistV9DeterministicTurn,
   RectificationToolServiceError,
   transitionV9CaseStatus,
@@ -13,6 +14,7 @@ import { decideFromDossier, rectificationFollowupCatalog } from "@/lib/rectifica
 import {
   applyRectificationChoice,
   applyCollectFocusDenial,
+  ensureNonTerminalTurnExit,
   persistNextInterviewIfIdle,
   persistCollectSpokenAssistantIfNew,
 } from "@/lib/rectification-agentic/v9/answer-choice";
@@ -683,6 +685,22 @@ export async function POST(request: Request) {
                 `[rectification-v9] persist next interview after turn failed case=${caseId} reason=${error instanceof Error ? error.name : "Unknown"}`,
               );
             }
+            try {
+              const receipt = await loadV9TurnReceipt(accounting as never, userId, caseId, result.turnId);
+              const exit = await ensureNonTerminalTurnExit({
+                accounting: accounting as never,
+                userId,
+                caseId,
+                adoptCarrierReady: Boolean(receipt?.toolActivities.some((activity) => (
+                  activity.tool === "rectification-offer-candidates" && activity.status === "completed"
+                ))),
+              });
+              idleHostNarration = exit.hostNarration ?? idleHostNarration;
+            } catch (error) {
+              console.warn(
+                `[rectification-v9] nonterminal turn exit repair failed case=${caseId} reason=${error instanceof Error ? error.name : "Unknown"}`,
+              );
+            }
             try {
               const fallback = await persistCollectSpokenAssistantIfNew({
                 accounting: accounting as never,