fix(rectification): keep one delivery and adopt with the birth date

Accept and GET now decide with the same birth snapshot as the answer, so an under-age probe cannot flip can_adopt. The exit skips a second write when this reply already delivered. The card stays without an adopt button when adoption is not allowed, and a refusal shows the Chinese sentence.

frontend/src/app/api/rectification/cases/[caseId]/candidates/accept/route.ts

@@ -111,6 +111,9 @@ export async function POST(request: Request, context: RouteContext) {
     const { loadV9CaseDossier, evidenceLedgerFingerprint } = await import(
       "@/lib/rectification-agentic/v9/tool-service"
     );
+    const { loadCaseDecisionInputs } = await import(
+      "@/lib/rectification-agentic/v9/decision-inputs"
+    );
     const { decideFromDossier, overlayPublicDecision } = await import(
       "@/lib/rectification-agentic/v9/interview-state"
     );
@@ -120,16 +123,20 @@ export async function POST(request: Request, context: RouteContext) {
     const { assertV9ResultWritable } = await import("@/lib/rectification-agentic/v9/result-identity");
     await assertV9ResultWritable(accounting, user.id, caseId, parsed.data.resultId);
     const dossier = await loadV9CaseDossier(accounting, user.id, caseId);
-    const decision = decideFromDossier(dossier, {
+    const decision = decideFromDossier(dossier, await loadCaseDecisionInputs(accounting, user.id, caseId, {
       currentEvidenceFingerprint: evidenceLedgerFingerprint(dossier.evidence),
-    });
+    }));
     const fields = publicDecisionFields(decision);
     const overlaid = dossier.latestResult
       ? overlayPublicDecision(dossier.latestResult, decision)
       : fields;
     if (overlaid.can_adopt !== true) {
       return NextResponse.json(
-        { error: "adoption_not_allowed", session_outcome: fields.session_outcome },
+        {
+          error: "这次的结果还不能采用，已刷新到最新状态",
+          code: "adoption_not_allowed",
+          session_outcome: fields.session_outcome,
+        },
         { status: 409 },
       );
     }
@@ -207,6 +214,12 @@ export async function POST(request: Request, context: RouteContext) {
       ...(adoptTurnId ? { adopt_turn_id: adoptTurnId } : {}),
     });
   } catch (error) {
+    if (error instanceof RectificationToolServiceError && error.code === "birth_snapshot_unavailable") {
+      return NextResponse.json(
+        { error: "暂时无法采用", code: "birth_snapshot_unavailable" },
+        { status: 503 },
+      );
+    }
     if (error instanceof RectificationToolServiceError) {
       return errorResponse(error);
     }

frontend/src/app/api/rectification/cases/[caseId]/repair-exit/route.ts

@@ -13,6 +13,7 @@ import {
 } from "@/lib/rectification-agentic/v9/tool-service";
 import { ensureNonTerminalTurnExit } from "@/lib/rectification-agentic/v9/answer-choice";
 import { dossierResponseWithIdentity } from "@/lib/rectification-agentic/v9/case-dossier-response";
+import { loadCaseDecisionInputs } from "@/lib/rectification-agentic/v9/decision-inputs";
 
 export const runtime = "nodejs";
 
@@ -75,9 +76,13 @@ export async function POST(request: Request, context: RouteContext) {
       }),
     );
     const listed = await listV10ConversationFocuses(accounting, user.id, caseId);
+    const decisionInputs = await loadCaseDecisionInputs(accounting, user.id, caseId);
     return NextResponse.json({
       ok: true,
-      ...await dossierResponseWithIdentity(dossier, receipts, skillIdentity, { listed }),
+      ...await dossierResponseWithIdentity(dossier, receipts, skillIdentity, {
+        listed,
+        birthDate: decisionInputs.birthDate,
+      }),
     });
   } catch (error) {
     if (error instanceof RectificationToolServiceError) {

frontend/src/app/api/rectification/cases/[caseId]/route.ts

@@ -14,6 +14,7 @@ import {
   safeToolErrorCode,
 } from "@/lib/rectification-agentic/v9/tool-service";
 import { dossierResponseWithIdentity } from "@/lib/rectification-agentic/v9/case-dossier-response";
+import { loadCaseDecisionInputs } from "@/lib/rectification-agentic/v9/decision-inputs";
 import { scheduleRectificationTelemetry } from "@/lib/rectification-agentic/v9/telemetry";
 
 export const runtime = "nodejs";
@@ -97,9 +98,11 @@ export async function GET(request: Request, context: RouteContext) {
       }),
     );
     const listed = await listV10ConversationFocuses(accounting, user.id, caseId);
+    const decisionInputs = await loadCaseDecisionInputs(accounting, user.id, caseId);
     return NextResponse.json(await dossierResponseWithIdentity(dossier, receipts, skillIdentity, {
       fullDetail,
       listed,
+      birthDate: decisionInputs.birthDate,
       // Anonymous aggregate telemetry: fire-and-forget, never awaited here.
       onProjected: ({ decision, rangeDelivery, readOnly }) => {
         void scheduleRectificationTelemetry({