fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/validator/es/lib/isBtcAddress.js

@@ -0,0 +1,7 @@
+import assertString from './util/assertString';
+var bech32 = /^(bc1|tb1|bc1p|tb1p)[ac-hj-np-z02-9]{39,58}$/;
+var base58 = /^(1|2|3|m)[A-HJ-NP-Za-km-z1-9]{25,39}$/;
+export default function isBtcAddress(str) {
+  assertString(str);
+  return bech32.test(str) || base58.test(str);
+}