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/shared-ini-file-loader/dist-es/readFile.js

@@ -0,0 +1,12 @@
+import { readFile as fsReadFile } from "node:fs/promises";
+export const filePromises = {};
+export const fileIntercept = {};
+export const readFile = (path, options) => {
+    if (fileIntercept[path] !== undefined) {
+        return fileIntercept[path];
+    }
+    if (!filePromises[path] || options?.ignoreCache) {
+        filePromises[path] = fsReadFile(path, "utf8");
+    }
+    return filePromises[path];
+};