v0.1.0

frontend/components/letterfeed/LoadingSpinner.tsx

@@ -0,0 +1,9 @@
+import { Loader2 } from "lucide-react"
+
+export function LoadingSpinner() {
+  return (
+    <div className="min-h-screen bg-gray-50 flex items-center justify-center">
+      <Loader2 className="w-12 h-12 text-gray-400 animate-spin" data-testid="loading-spinner" />
+    </div>
+  )
+}