Align preview typography with FFmpeg output, add video/song title split, and ship OSS updates.

Separate YouTube video titles from on-video song/artist fields with Pro gating, serve curated fonts and watermark assets for 1:1 preview parity, and include billing/API/docs/deploy stack for self-hosted release.

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

components/DashboardShell.tsx

@@ -0,0 +1,18 @@
+import type { ReactNode } from "react";
+import { DashboardNav } from "@/components/DashboardNav";
+import { LegalFooter } from "@/components/LegalFooter";
+
+type Props = {
+  channelTitle?: string | null;
+  children: ReactNode;
+};
+
+export function DashboardShell({ channelTitle, children }: Props) {
+  return (
+    <main className="flex min-h-screen flex-col">
+      <DashboardNav channelTitle={channelTitle} />
+      <div className="flex-1">{children}</div>
+      <LegalFooter />
+    </main>
+  );
+}