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/numToUint8.js

@@ -0,0 +1,11 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+export function numToUint8(num) {
+    return new Uint8Array([
+        (num & 0xff000000) >> 24,
+        (num & 0x00ff0000) >> 16,
+        (num & 0x0000ff00) >> 8,
+        num & 0x000000ff,
+    ]);
+}
+//# sourceMappingURL=numToUint8.js.map