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/abort-controller/dist-cjs/index.js

@@ -0,0 +1,32 @@
+'use strict';
+
+class AbortSignal {
+    onabort = null;
+    _aborted = false;
+    constructor() {
+        Object.defineProperty(this, "_aborted", {
+            value: false,
+            writable: true,
+        });
+    }
+    get aborted() {
+        return this._aborted;
+    }
+    abort() {
+        this._aborted = true;
+        if (this.onabort) {
+            this.onabort(this);
+            this.onabort = null;
+        }
+    }
+}
+
+class AbortController {
+    signal = new AbortSignal();
+    abort() {
+        this.signal.abort();
+    }
+}
+
+exports.AbortController = AbortController;
+exports.AbortSignal = AbortSignal;