Implement creator studio and upload updates

resources/js/render-frame.jsx

@@ -0,0 +1,26 @@
+/**
+ * render-frame.jsx — standalone React entry for Playwright card rendering.
+ *
+ * Reads card data from window globals injected by NovaCardRenderFrameController
+ * and mounts just the NovaCardCanvasPreview component with no editor chrome.
+ * The Playwright script screenshots [data-card-canvas] after this mounts.
+ */
+import React from 'react'
+import { createRoot } from 'react-dom/client'
+import NovaCardCanvasPreview from './components/nova-cards/NovaCardCanvasPreview'
+
+const card  = window.__NOVA_CARD__  || {}
+const fonts = window.__NOVA_CARD_FONTS__ || []
+
+const mount = document.getElementById('card-render-mount')
+if (mount) {
+  createRoot(mount).render(
+    <NovaCardCanvasPreview
+      card={card}
+      fonts={fonts}
+      editable={false}
+      renderMode={true}
+      className="w-full"
+    />,
+  )
+}