cleanup the repo unused images

next.config.ts

@@ -5,7 +5,7 @@ const nextConfig: NextConfig = {
   turbopack: {
     root: path.resolve(__dirname),
   },
-  output: "export",
+  // output: "export" removed to allow server actions
   // Required by the How It Works 3D experience. React StrictMode double-invokes
   // mount/effects in dev, which tears down and re-creates the WebGL context of
   // the heavy 32MB scene mid-initialization — the context is lost ("THREE.
@@ -15,7 +15,6 @@ const nextConfig: NextConfig = {
   // any other page's runtime behavior.
   reactStrictMode: false,
   images: {
-    unoptimized: true,
     formats: ["image/avif", "image/webp"],
   },
 };