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/layout.tsx

@@ -20,7 +20,7 @@ const jetbrainsMono = JetBrains_Mono({
 export const metadata: Metadata = {
   title: "PolyWeather | Weather Intelligence",
   description:
-    "PolyWeather pro dashboard with global weather risk map and city analytics.",
+    "PolyWeather paid professional terminal for weather-market intelligence, city decision cards, and subscription-only analytics.",
   manifest: "/site.webmanifest",
   icons: {
     icon: [

frontend/app/page.tsx

@@ -1,11 +1,11 @@
 import type { Metadata } from "next";
 import { redirect } from "next/navigation";
-import { DashboardEntry } from "@/components/dashboard/DashboardEntry";
+import { InstitutionalLandingPage } from "@/components/landing/InstitutionalLandingPage";
 
 export const metadata: Metadata = {
-  title: "PolyWeather - Global Weather Intelligence Map",
+  title: "PolyWeather | Institutional Weather Market Intelligence",
   description:
-    "PolyWeather dashboard with METAR, MGM, DEB fusion forecast, multi-model comparison, and AI weather decision cards.",
+    "PolyWeather is a paid professional weather-market intelligence terminal with METAR evidence, DEB forecast blending, and AI decision cards.",
 };
 
 export default async function HomePage({
@@ -29,5 +29,5 @@ export default async function HomePage({
     const qs = usp.toString();
     redirect(`/auth/callback${qs ? `?${qs}` : ""}`);
   }
-  return <DashboardEntry />;
+  return <InstitutionalLandingPage />;
 }

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 />;
+}