feat: make birth-time rectification a soft homepage flow

frontend/src/app/api/account/route.ts

@@ -1,4 +1,8 @@
 import { NextResponse } from "next/server";
+import {
+  parseRectificationPriceCredits,
+  type AccountRectificationCaseState,
+} from "@/lib/birth-time-consultation-consent";
 import { createAdminSupabaseClient, isAdminEmail } from "@/lib/supabase/admin";
 import {
   isSupabaseConfigurationError,
@@ -28,6 +32,7 @@ type ProfilePatchPayload = {
 
 const birthTimeSources = ["hospital_record", "family_exact", "approximate", "period_only", "unknown", "legacy_import"] as const;
 const birthTimePeriods = ["early_morning", "morning", "afternoon", "evening", "late_night"] as const;
+const rectificationStatuses = ["starting", "active", "paused", "confirming", "completed", "abandoned"] as const;
 
 function nullableString(value: unknown) {
   return typeof value === "string" && value.trim() ? value.trim() : null;
@@ -53,6 +58,28 @@ function isMissingProfileColumn(error: { code?: string; message?: string } | nul
     || message.includes("column");
 }
 
+function projectRectificationCase(value: unknown): AccountRectificationCaseState | null {
+  if (value === null || typeof value !== "object") return null;
+  const row = value as Record<string, unknown>;
+  const status = rectificationStatuses.find((candidate) => candidate === row.status);
+  if (typeof row.id !== "string"
+    || row.journey_protocol !== "conversational-evidence-v3"
+    || !status
+    || typeof row.turn_version !== "number"
+    || !Number.isSafeInteger(row.turn_version)
+    || row.turn_version < 0) {
+    throw new Error("invalid rectification case projection");
+  }
+  return Object.freeze({
+    caseId: row.id,
+    journeyProtocol: "conversational-evidence-v3",
+    status,
+    turnVersion: row.turn_version,
+    isRevision: typeof row.revision_of_case_id === "string",
+    preservesActiveTime: typeof row.baseline_active_time === "string",
+  });
+}
+
 export async function GET() {
   try {
     const supabase = await createServerSupabaseClient();
@@ -62,9 +89,12 @@ export async function GET() {
       return NextResponse.json({ error: "请先登录" }, { status: 401 });
     }
 
+    const rectificationPriceCredits = parseRectificationPriceCredits(
+      process.env.RECTIFICATION_PRICE_CREDITS,
+    );
     const { data: profile, error } = await supabase
       .from("profiles")
-      .select("credits")
+      .select("credits,active_birth_time,birth_time_status")
       .eq("id", user.id)
       .single();
 
@@ -72,10 +102,28 @@ export async function GET() {
       return NextResponse.json({ error: "暂时无法读取账户余额" }, { status: 500 });
     }
 
+    const admin = createAdminSupabaseClient();
+    const { data: rectificationCaseRow, error: rectificationCaseError } = await admin
+      .from("birth_time_rectification_cases")
+      .select("id,journey_protocol,status,turn_version,revision_of_case_id,baseline_active_time,updated_at")
+      .eq("user_id", user.id)
+      .eq("journey_protocol", "conversational-evidence-v3")
+      .order("updated_at", { ascending: false })
+      .limit(1)
+      .maybeSingle();
+    if (rectificationCaseError) {
+      return NextResponse.json({ error: "暂时无法读取生时校正状态" }, { status: 500 });
+    }
+    const rectificationCase = projectRectificationCase(rectificationCaseRow);
+
     return NextResponse.json({
       user: { id: user.id, email: user.email ?? null },
       credits: profile.credits,
       isAdmin: isAdminEmail(user.email),
+      rectificationPriceCredits,
+      hasConfirmedBirthTime: profile.birth_time_status === "confirmed"
+        && typeof profile.active_birth_time === "string",
+      rectificationCase,
     });
   } catch (error) {
     if (isSupabaseConfigurationError(error)) {