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/@aws-sdk/token-providers/dist-es/writeSSOTokenToFile.js

@@ -0,0 +1,8 @@
+import { getSSOTokenFilepath } from "@smithy/shared-ini-file-loader";
+import { promises as fsPromises } from "fs";
+const { writeFile } = fsPromises;
+export const writeSSOTokenToFile = (id, ssoToken) => {
+    const tokenFilepath = getSSOTokenFilepath(id);
+    const tokenString = JSON.stringify(ssoToken, null, 2);
+    return writeFile(tokenFilepath, tokenString);
+};