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/@smithy/util-uri-escape/dist-cjs/index.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const escapeUri = (uri) => encodeURIComponent(uri).replace(/[!'()*]/g, hexEncode);
+const hexEncode = (c) => `%${c.charCodeAt(0).toString(16).toUpperCase()}`;
+
+const escapeUriPath = (uri) => uri.split("/").map(escapeUri).join("/");
+
+exports.escapeUri = escapeUri;
+exports.escapeUriPath = escapeUriPath;