重构首页为机构落地页，新增终端路由，时区感知 Polymarket 市场发现

frontend/app/terminal/page.tsx

@@ -0,0 +1,12 @@
+import type { Metadata } from "next";
+import { ScanTerminalDashboard } from "@/components/dashboard/ScanTerminalDashboard";
+
+export const metadata: Metadata = {
+  title: "PolyWeather Terminal | Paid Product",
+  description:
+    "Paid PolyWeather decision terminal for weather-market analysis and city decision cards.",
+};
+
+export default function TerminalPage() {
+  return <ScanTerminalDashboard />;
+}