Описание изменений

frontend/src/utils/contract.ts

@@ -0,0 +1,9 @@
+import { ethers } from 'ethers';
+
+export const formatAddress = (address: string): string => {
+  return `${address.slice(0, 6)}...${address.slice(-4)}`;
+};
+
+export const isValidAddress = (address: string): boolean => {
+  return ethers.isAddress(address);
+};