small fix, don't worry about it

app/frontend/src/shared/hooks/use-toast.ts

@@ -0,0 +1,17 @@
+import { createContext, useContext } from 'react';
+
+export type ToastType = 'success' | 'info' | 'warning' | 'error';
+
+export interface ToastContextValue {
+  showToast: (message: string, type?: ToastType) => void;
+}
+
+export const ToastContext = createContext<ToastContextValue | null>(null);
+
+export function useToast() {
+  const context = useContext(ToastContext);
+  if (!context) {
+    throw new Error('useToast must be used within a ToastProvider');
+  }
+  return context;
+}