Blockchain added

app/(dashboard)/blockchain/layout.tsx

@@ -0,0 +1,14 @@
+import type { Metadata } from "next";
+
+export const metadata: Metadata = {
+  title: "Blockchain Explorer | LexiChain",
+  description: "View on-chain proofs and verify document integrity",
+};
+
+export default function BlockchainLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <>{children}</>;
+}