Binary file uploads and missing workspace empty state

src-web/hooks/useContentTypeFromHeaders.ts

@@ -0,0 +1,9 @@
+import { useMemo } from 'react';
+import type { HttpHeader } from '../lib/models';
+
+export function useContentTypeFromHeaders(headers: HttpHeader[] | null): string | null {
+  return useMemo(
+    () => headers?.find((h) => h.name.toLowerCase() === 'content-type')?.value ?? null,
+    [headers],
+  );
+}