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-crypto/util/build/module/convertToBuffer.js

@@ -0,0 +1,20 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { fromUtf8 as fromUtf8Browser } from "@smithy/util-utf8";
+// Quick polyfill
+var fromUtf8 = typeof Buffer !== "undefined" && Buffer.from
+    ? function (input) { return Buffer.from(input, "utf8"); }
+    : fromUtf8Browser;
+export function convertToBuffer(data) {
+    // Already a Uint8, do nothing
+    if (data instanceof Uint8Array)
+        return data;
+    if (typeof data === "string") {
+        return fromUtf8(data);
+    }
+    if (ArrayBuffer.isView(data)) {
+        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    }
+    return new Uint8Array(data);
+}
+//# sourceMappingURL=convertToBuffer.js.map