From 644b592fe83b95ac537bb8c3f143ed48bc6b35ad Mon Sep 17 00:00:00 2001
From: "2569718930@qq.com" <2569718930@qq.com>
Date: Fri, 15 May 2026 02:01:41 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20MarketOverviewBanner=20?=
 =?UTF-8?q?=E6=9C=AA=E4=BD=BF=E7=94=A8=20fetchBackendApi=20=E5=AF=BC?=
 =?UTF-8?q?=E8=87=B4=E7=94=9F=E4=BA=A7=E7=8E=AF=E5=A2=83=20404?=
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组件内裸 fetch() 请求到 Vercel 前端域名，缺少路由 handler 返回 404。
统一使用 fetchBackendApi() 走后端代理，其他 scan-terminal 组件已正确使用。
---
 .../dashboard/scan-terminal/MarketOverviewBanner.tsx      | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/frontend/components/dashboard/scan-terminal/MarketOverviewBanner.tsx b/frontend/components/dashboard/scan-terminal/MarketOverviewBanner.tsx
index 527c56cd..6bb29e6c 100644
--- a/frontend/components/dashboard/scan-terminal/MarketOverviewBanner.tsx
+++ b/frontend/components/dashboard/scan-terminal/MarketOverviewBanner.tsx
@@ -3,6 +3,7 @@
 import clsx from "clsx";
 import { ChevronDown, ChevronUp, Sparkles } from "lucide-react";
 import { useCallback, useEffect, useRef, useState } from "react";
+import { fetchBackendApi, buildBrowserBackendHeaders } from "@/lib/backend-api";
 import styles from "./MarketOverviewBanner.module.css";
 import type { ScanOpportunityRow } from "@/lib/dashboard-types";
 
@@ -34,9 +35,12 @@ export function MarketOverviewBanner({
     setLoading(true);
     setError(false);
     try {
-      const resp = await fetch("/api/scan/terminal/overview", {
+      const headers = await buildBrowserBackendHeaders({
+        "Content-Type": "application/json",
+      });
+      const resp = await fetchBackendApi("/api/scan/terminal/overview", {
         method: "POST",
-        headers: { "Content-Type": "application/json" },
+        headers,
         body: JSON.stringify({
           rows: rows.slice(0, 40).map((row) => ({
             city: row.city ?? row.display_name ?? "",