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/isDataURI.js

@@ -0,0 +1,40 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isDataURI;
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+var validMediaType = /^[a-z]+\/[a-z0-9\-\+\._]+$/i;
+var validAttribute = /^[a-z\-]+=[a-z0-9\-]+$/i;
+var validData = /^[a-z0-9!\$&'\(\)\*\+,;=\-\._~:@\/\?%\s]*$/i;
+function isDataURI(str) {
+  (0, _assertString.default)(str);
+  var data = str.split(',');
+  if (data.length < 2) {
+    return false;
+  }
+  var attributes = data.shift().trim().split(';');
+  var schemeAndMediaType = attributes.shift();
+  if (schemeAndMediaType.slice(0, 5) !== 'data:') {
+    return false;
+  }
+  var mediaType = schemeAndMediaType.slice(5);
+  if (mediaType !== '' && !validMediaType.test(mediaType)) {
+    return false;
+  }
+  for (var i = 0; i < attributes.length; i++) {
+    if (!(i === attributes.length - 1 && attributes[i].toLowerCase() === 'base64') && !validAttribute.test(attributes[i])) {
+      return false;
+    }
+  }
+  for (var _i = 0; _i < data.length; _i++) {
+    if (!validData.test(data[_i])) {
+      return false;
+    }
+  }
+  return true;
+}
+module.exports = exports.default;
+module.exports.default = exports.default;