Add SEO metadata, sitemap, robots, and JSON-LD for search ranking.

Ship canonical/Open Graph/Twitter tags, WebApplication schema, and landing copy aimed at audio-to-YouTube queries.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/page.tsx

@@ -41,8 +41,9 @@ export default async function HomePage() {
             <span className="text-red-400">2VID</span>
           </h1>
           <p className="mx-auto mt-6 max-w-2xl text-base leading-relaxed text-gray-200 sm:text-lg md:text-xl">
-            Songs2VID is an automation tool that converts your audio and image files into
-            high-quality videos and uploads them directly to YouTube.
+            Convert MP3, WAV, and audio files into YouTube videos instantly — a fast, privacy-focused
+            audio to video converter and TunesToTube alternative that uploads music, beats, and
+            podcasts directly to your channel.
           </p>
 
           <div className="mt-10 flex flex-col items-center gap-3">