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/validateTokenKey.js

@@ -0,0 +1,7 @@
+import { TokenProviderError } from "@smithy/property-provider";
+import { REFRESH_MESSAGE } from "./constants";
+export const validateTokenKey = (key, value, forRefresh = false) => {
+    if (typeof value === "undefined") {
+        throw new TokenProviderError(`Value not present for '${key}' in SSO Token${forRefresh ? ". Cannot refresh" : ""}. ${REFRESH_MESSAGE}`, false);
+    }
+};