Build smart scale application

app/layout.tsx

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+import type { Metadata } from "next";
+import { headers } from "next/headers";
+import "./globals.css";
+
+export async function generateMetadata(): Promise<Metadata> {
+  const headerStore = await headers();
+  const host = headerStore.get("x-forwarded-host") ?? headerStore.get("host") ?? "localhost:3000";
+  const protocol = headerStore.get("x-forwarded-proto") ?? (host.startsWith("localhost") ? "http" : "https");
+  const origin = `${protocol}://${host}`;
+
+  return {
+    title: "智能称重终端｜沃尔核材",
+    description: "面向生产现场的废料智能称重、稳定采样与数据追溯应用。",
+    icons: {
+      icon: "/favicon.svg",
+      shortcut: "/favicon.svg",
+    },
+    openGraph: {
+      title: "智能称重终端",
+      description: "稳定采样 · 精准记录 · 数据可追溯",
+      images: [{ url: `${origin}/og.png`, width: 1536, height: 864, alt: "智能称重终端" }],
+    },
+    twitter: {
+      card: "summary_large_image",
+      title: "智能称重终端",
+      description: "稳定采样 · 精准记录 · 数据可追溯",
+      images: [`${origin}/og.png`],
+    },
+  };
+}
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="zh-CN">
+      <body>{children}</body>
+    </html>
+  );
+}