Add landing page for voicebox.sh

- Created a new landing page using Next.js 16, featuring a modern design with Tailwind CSS.
- Implemented essential components including Header, Footer, and DownloadSection for user navigation and download options.
- Configured Tailwind CSS and PostCSS for styling, and set up TypeScript for type safety.
- Added a README with setup instructions, project structure, and deployment guidelines.
- Integrated GitHub links for easy access to the repository and releases.
- Established a consistent UI with reusable components and responsive design.

landing/src/components/Footer.tsx

@@ -0,0 +1,64 @@
+import Link from 'next/link';
+import { Separator } from '@/components/ui/separator';
+import { GITHUB_REPO } from '@/lib/constants';
+
+export function Footer() {
+  return (
+    <footer className="border-t border-border pt-8 sm:pt-12 pb-6 sm:pb-8 mt-12 sm:mt-16 md:mt-20">
+      <div className="container mx-auto px-4">
+        <div className="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-6 sm:gap-8 mb-6 sm:mb-8">
+          <div>
+            <h3 className="font-bold text-lg mb-4">voicebox</h3>
+            <p className="text-muted-foreground text-sm">
+              Professional voice cloning powered by Qwen3-TTS. Desktop app for Mac, Windows, and Linux.
+            </p>
+          </div>
+          <div>
+            <h4 className="font-semibold mb-3">Product</h4>
+            <ul className="space-y-2 text-muted-foreground text-sm">
+              <li>
+                <a href="#features" className="hover:text-foreground transition-colors">
+                  Features
+                </a>
+              </li>
+              <li>
+                <a href="#download" className="hover:text-foreground transition-colors">
+                  Download
+                </a>
+              </li>
+              <li>
+                <Link href={GITHUB_REPO} target="_blank" rel="noopener noreferrer" className="hover:text-foreground transition-colors">
+                  GitHub
+                </Link>
+              </li>
+            </ul>
+          </div>
+          <div>
+            <h4 className="font-semibold mb-3">Resources</h4>
+            <ul className="space-y-2 text-muted-foreground text-sm">
+              <li>
+                <Link href={GITHUB_REPO} target="_blank" rel="noopener noreferrer" className="hover:text-foreground transition-colors">
+                  Source Code
+                </Link>
+              </li>
+              <li>
+                <Link href={`${GITHUB_REPO}/releases`} target="_blank" rel="noopener noreferrer" className="hover:text-foreground transition-colors">
+                  Releases
+                </Link>
+              </li>
+              <li>
+                <Link href={`${GITHUB_REPO}/issues`} target="_blank" rel="noopener noreferrer" className="hover:text-foreground transition-colors">
+                  Issues
+                </Link>
+              </li>
+            </ul>
+          </div>
+        </div>
+        <Separator className="my-8" />
+        <div className="text-center text-muted-foreground text-sm space-y-2">
+          <p>© 2026 voicebox. All rights reserved.</p>
+        </div>
+      </div>
+    </footer>
+  );
+}