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/smithy-client/dist-es/extensions/defaultExtensionConfiguration.js

@@ -0,0 +1,9 @@
+import { getChecksumConfiguration, resolveChecksumRuntimeConfig } from "./checksum";
+import { getRetryConfiguration, resolveRetryRuntimeConfig } from "./retry";
+export const getDefaultExtensionConfiguration = (runtimeConfig) => {
+    return Object.assign(getChecksumConfiguration(runtimeConfig), getRetryConfiguration(runtimeConfig));
+};
+export const getDefaultClientConfiguration = getDefaultExtensionConfiguration;
+export const resolveDefaultRuntimeConfig = (config) => {
+    return Object.assign(resolveChecksumRuntimeConfig(config), resolveRetryRuntimeConfig(config));
+};