update manage reward

src/pages/master/reward/hooks/useManageRewardContext.tsx

@@ -0,0 +1,12 @@
+import { useContext } from 'react';
+import { ManageRewardContext } from './ManageRewardContext';
+
+const useManageRewardContext = () => {
+  const context = useContext(ManageRewardContext);
+
+  if (!context) throw new Error('useManageRewardContext must be used within AuthProvider');
+
+  return context;
+};
+
+export { useManageRewardContext };