feat(landing): rebuild as Next.js app with live product mocks

Replaces the static HTML page with a Next.js 15 + Tailwind v4 + Motion
app. The hero renders the dashboard itself - live tiles, ticking clock,
wandering metrics, pulsing status dots - instead of screenshots. Adds a
playable four-renderer switcher (bento/cards/index/console) with layout
animations, live monitor/domain/system mocks, and a cycling alert feed.

Vercel project dash is now git-connected with root dir landing/; pushes
deploy automatically. Canonical alias: dash-homelab.vercel.app.

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

landing/app/layout.tsx

@@ -0,0 +1,45 @@
+import type { Metadata, Viewport } from "next";
+import localFont from "next/font/local";
+import "./globals.css";
+
+const geist = localFont({
+  src: "./fonts/geist-var.woff2",
+  variable: "--font-geist",
+  weight: "100 900",
+  display: "swap",
+});
+
+const geistMono = localFont({
+  src: "./fonts/geist-mono-var.woff2",
+  variable: "--font-geist-mono",
+  weight: "100 900",
+  display: "swap",
+});
+
+export const metadata: Metadata = {
+  metadataBase: new URL("https://dash-homelab.vercel.app"),
+  title: "Dash - Self-hosted homelab dashboard",
+  description:
+    "Service boards, uptime monitors, domain watch, and system metrics in one container. A single static Go binary with an embedded React UI. No YAML, no external database.",
+  openGraph: {
+    title: "Dash - Self-hosted homelab dashboard",
+    description:
+      "Service boards, uptime monitors, domain watch, and system metrics in one container. One static Go binary, no YAML.",
+    type: "website",
+    images: ["/dash.svg"],
+  },
+};
+
+export const viewport: Viewport = {
+  themeColor: "#0a0a0a",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{ children: React.ReactNode }>) {
+  return (
+    <html lang="en" className={`${geist.variable} ${geistMono.variable}`}>
+      <body className="font-sans">{children}</body>
+    </html>
+  );
+}