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/lib/util/multilineRegex.js

@@ -0,0 +1,20 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = multilineRegexp;
+/**
+ * Build RegExp object from an array
+ * of multiple/multi-line regexp parts
+ *
+ * @param {string[]} parts
+ * @param {string} flags
+ * @return {object} - RegExp object
+ */
+function multilineRegexp(parts, flags) {
+  var regexpAsStringLiteral = parts.join('');
+  return new RegExp(regexpAsStringLiteral, flags);
+}
+module.exports = exports.default;
+module.exports.default = exports.default;