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/util-middleware/dist-cjs/index.js

@@ -0,0 +1,15 @@
+'use strict';
+
+var types = require('@smithy/types');
+
+const getSmithyContext = (context) => context[types.SMITHY_CONTEXT_KEY] || (context[types.SMITHY_CONTEXT_KEY] = {});
+
+const normalizeProvider = (input) => {
+    if (typeof input === "function")
+        return input;
+    const promisified = Promise.resolve(input);
+    return () => promisified;
+};
+
+exports.getSmithyContext = getSmithyContext;
+exports.normalizeProvider = normalizeProvider;