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/hash-stream-node/dist-es/HashCalculator.js

@@ -0,0 +1,18 @@
+import { toUint8Array } from "@smithy/util-utf8";
+import { Writable } from "stream";
+export class HashCalculator extends Writable {
+    hash;
+    constructor(hash, options) {
+        super(options);
+        this.hash = hash;
+    }
+    _write(chunk, encoding, callback) {
+        try {
+            this.hash.update(toUint8Array(chunk));
+        }
+        catch (err) {
+            return callback(err);
+        }
+        callback();
+    }
+}