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-sdk/util-locate-window/dist-es/index.js

@@ -0,0 +1,10 @@
+const fallbackWindow = {};
+export function locateWindow() {
+    if (typeof window !== "undefined") {
+        return window;
+    }
+    else if (typeof self !== "undefined") {
+        return self;
+    }
+    return fallbackWindow;
+}