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/middleware-retry/dist-es/delayDecider.js

@@ -0,0 +1,2 @@
+import { MAXIMUM_RETRY_DELAY } from "@smithy/util-retry";
+export const defaultDelayDecider = (delayBase, attempts) => Math.floor(Math.min(MAXIMUM_RETRY_DELAY, Math.random() * 2 ** attempts * delayBase));