feat(rectification): submit varga-resolution implementation for review

Review-only snapshot for BUG-1115 through BUG-1117; not merge-ready. New opening and append-turn PostgreSQL permission failures remain blocked. Persisted joint replay has zero completed questions; segment ordering remains off by default. The existing offline replay JSON is retained stale and unchanged after a denied overwrite, including its CRLF line endings. Browser/provider validation and final serial gates remain pending. No deployment, role permission changes, or staging/main push.

Co-Authored-By: Claude Code <noreply@anthropic.com>

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

@@ -10,7 +10,7 @@ import {
   awaitTurnExitBeforeResponse,
   finalizeSuccessfulTurnExit,
 } from "@/lib/rectification-agentic/v9/turn-exit";
-import type { RectificationAgentTurnState } from "@/lib/rectification-agentic/v9/agent-route-support";
+import { completedMessageResponse, type RectificationAgentTurnState } from "@/lib/rectification-agentic/v9/agent-route-support";
 import { resolveRectificationAgentRequest } from "@/lib/rectification-agentic/v9/agent-route-request";
 import { handleRectificationStructuredChoice } from "@/lib/rectification-agentic/v9/agent-route-structured-choice";
 import {
@@ -66,6 +66,15 @@ export async function POST(request: Request) {
   const frozen = await refuseWhenAccountDeletionPending(userId);
   if (frozen) return frozen;
 
+  if (action === "opening") {
+    const consistency = await finalizeSuccessfulTurnExit({
+      accounting: accounting as never, userId, caseId, action, segmentOpening: true,
+    });
+    if (consistency?.segmentConsistency) {
+      return completedMessageResponse(consistency.text, context.requestId, caseId, consistency.turnId);
+    }
+  }
+
   const declaredWindowReply = await replyToDeclaredBirthWindow(context);
   if (declaredWindowReply) return declaredWindowReply;
 

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

@@ -28,6 +28,7 @@ function errorResponse(error: unknown) {
     ["agentic_rectification_candidate_expired", 409, "候选结果已过期，请重新比较"],
     ["agentic_rectification_candidate_selection_blocked", 409, "当前还不能采用候选"],
     ["agentic_rectification_candidate_state_inconsistent", 409, "候选状态已更新，请刷新后重试"],
+    ["agentic_rectification_segment_state_inconsistent", 409, "盘型证据已更新，请刷新后重试"],
     ["agentic_rectification_candidate_time_not_allowed", 409, "该时间不在当前候选内"],
     ["agentic_rectification_candidate_already_selected", 409, "该时间已采用"],
     ["agentic_rectification_candidate_superseded", 409, "已有更新的候选结果"],
@@ -139,15 +140,16 @@ export async function POST(request: Request, context: RouteContext) {
       representativeTime: decision.representativeTime,
     });
 
+    const segmentAdoption = Boolean(decision.segmentSummary?.adoption_minute);
     const { data, error } = await accounting.rpc(
-      "accept_agentic_rectification_candidate_for_case_v2",
+      segmentAdoption ? "accept_agentic_rectification_segment_for_case_v1" : "accept_agentic_rectification_candidate_for_case_v2",
       {
         p_user_id: user.id,
         p_case_id: caseId,
         p_result_id: parsed.data.resultId,
         p_candidate_id: parsed.data.candidateId,
         p_request_id: parsed.data.requestId,
-        ...(credibleRange ? { p_credible_range: credibleRange } : {}),
+        ...(!segmentAdoption && credibleRange ? { p_credible_range: credibleRange } : {}),
       },
     );
     if (error) throw new RectificationToolServiceError(error.message);

frontend/src/app/api/rectification/cases/open/route.ts

@@ -10,6 +10,8 @@ import {
   openRectificationCase,
 } from "@/lib/rectification-agentic/v9/case-service";
 import { parseOpenRectificationCaseRequest } from "@/lib/rectification-agentic/v9/open-request";
+import { prepareCaseSegmentChecks } from "@/lib/rectification-agentic/v9/segment-checks";
+import { resolveRectificationProductDomain } from "@/lib/rectification-agentic/v9/product-domain";
 
 export const runtime = "nodejs";
 
@@ -29,7 +31,8 @@ function serviceErrorResponse(error: unknown) {
 /**
  * POST /api/rectification/cases/open
  *
- * Browser sends only { intent, requestId } (+ sessionId for intent=session).
+ * Browser sends { intent, requestId } (+ sessionId for intent=session, or
+ * sourceSessionId for a consultation handoff). Domain is read server-side.
  * The server derives the user from the session, normalizes the profile and
  * creates for homepage/new or restores the exact requested session. Retries are idempotent.
  */
@@ -70,7 +73,11 @@ export async function POST(request: Request) {
   }
 
   try {
-    const response = await openRectificationCase(accounting, user.id, parsed);
+    const domain = await resolveRectificationProductDomain(supabase, user.id, parsed);
+    const response = await openRectificationCase(accounting, user.id, parsed, domain);
+    if (response.shouldStartOpening) {
+      await prepareCaseSegmentChecks({ accounting: accounting as never, userId: user.id, caseId: response.caseId });
+    }
     return NextResponse.json(response);
   } catch (error) {
     return serviceErrorResponse(error);