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/signature-v4-multi-region/README.md

@@ -0,0 +1,32 @@
+# @aws-sdk/signature-v4-multi-region
+
+[![NPM version](https://img.shields.io/npm/v/@aws-sdk/signature-v4-multi-region/latest.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-multi-region)
+[![NPM downloads](https://img.shields.io/npm/dm/@aws-sdk/signature-v4-multi-region.svg)](https://www.npmjs.com/package/@aws-sdk/signature-v4-multi-region)
+
+See also https://github.com/aws/aws-sdk-js-v3/tree/main#functionality-requiring-aws-common-runtime-crt.
+
+## Usage
+
+This package contains optional dependency [`@aws-sdk/signature-v4-crt`](https://www.npmjs.com/package/@aws-sdk/signature-v4).
+You need to install this package explicitly to sign an un-regional request using SigV4a algorithm. The package contains
+Node.js native implementation which requires building at installation. The installed package MAY NOT work if the
+instance building the package runs a different operating system than the instance running the application.
+
+The `@aws-sdk/signature-v4-crt` is only supported in Node.js currently because it depends on a native dependency.
+
+Please refer to [this issue](https://github.com/aws/aws-sdk-js-v3/issues/2822) for more information.
+
+Note: You can also use a native JS (non-CRT) implementation of the SigV4A signer, instructions for which are here:
+https://github.com/aws/aws-sdk-js-v3/tree/main#functionality-requiring-aws-common-runtime-crt
+
+Please refer to the note regarding bundle size in the link above, before deciding to use the JS SigV4A signer (including in browsers).
+
+## Description
+
+This package provides a SigV4-compatible request signer that wraps a pure-JS SigV4 signer
+([`@aws-sdk/signature-v4`](https://www.npmjs.com/package/@aws-sdk/signature-v4)) for regional requests, and attempts to
+call a native implementation of SigV4a signer([`@aws-sdk/signature-v4-crt`](https://www.npmjs.com/package/@aws-sdk/signature-v4))
+it the request is multi-region.
+
+A multi-region request is identified by the `signingRegion` parameter. A request is multi-region if the `signingRegion`
+parameter is set to `*`.