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/signature-v4/dist-es/index.js

@@ -0,0 +1,11 @@
+export * from "./SignatureV4";
+export * from "./constants";
+export { getCanonicalHeaders } from "./getCanonicalHeaders";
+export { getCanonicalQuery } from "./getCanonicalQuery";
+export { getPayloadHash } from "./getPayloadHash";
+export { moveHeadersToQuery } from "./moveHeadersToQuery";
+export { prepareRequest } from "./prepareRequest";
+export * from "./credentialDerivation";
+export { SignatureV4Base } from "./SignatureV4Base";
+export { hasHeader } from "./headerUtil";
+export * from "./signature-v4a-container";