Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

packages/plugins/embeds/src/astro/Vimeo.astro

@@ -0,0 +1,25 @@
+---
+/**
+ * Vimeo embed component for Portable Text
+ *
+ * Wraps astro-embed's Vimeo component, extracting props from the PT block node.
+ * astro-portabletext passes `node` (not `value`) for custom type components.
+ */
+import { Vimeo as AstroVimeo } from "astro-embed";
+import type { VimeoBlock } from "../schemas.js";
+
+interface Props {
+	node: VimeoBlock;
+}
+
+const { node } = Astro.props;
+const { id, poster, posterQuality, params, playlabel } = node;
+---
+
+<AstroVimeo
+	id={id}
+	poster={poster}
+	posterQuality={posterQuality}
+	params={params}
+	playlabel={playlabel}
+/>