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/shared-ini-file-loader/dist-es/parseKnownFiles.js

@@ -0,0 +1,6 @@
+import { loadSharedConfigFiles } from "./loadSharedConfigFiles";
+import { mergeConfigFiles } from "./mergeConfigFiles";
+export const parseKnownFiles = async (init) => {
+    const parsedFiles = await loadSharedConfigFiles(init);
+    return mergeConfigFiles(parsedFiles.configFile, parsedFiles.credentialsFile);
+};