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/express-validator/lib/chain/sanitizers-impl.d.ts

@@ -0,0 +1,29 @@
+import { CustomSanitizer } from '../base';
+import { ContextBuilder } from '../context-builder';
+import * as Options from '../options';
+import { Sanitizers } from './sanitizers';
+export declare class SanitizersImpl<Chain> implements Sanitizers<Chain> {
+    private readonly builder;
+    private readonly chain;
+    constructor(builder: ContextBuilder, chain: Chain);
+    customSanitizer(sanitizer: CustomSanitizer): Chain;
+    default(default_value: any): Chain;
+    replace(values_to_replace: any, new_value: any): Chain;
+    private addStandardSanitization;
+    blacklist(chars: string): Chain;
+    escape(): Chain;
+    unescape(): Chain;
+    ltrim(chars?: string): Chain;
+    normalizeEmail(options?: Options.NormalizeEmailOptions): Chain;
+    rtrim(chars?: string): Chain;
+    stripLow(keep_new_lines?: boolean): Chain;
+    toArray(): Chain;
+    toBoolean(strict?: boolean): Chain;
+    toDate(): Chain;
+    toFloat(): Chain;
+    toInt(radix?: number): Chain;
+    toLowerCase(): Chain;
+    toUpperCase(): Chain;
+    trim(chars?: string): Chain;
+    whitelist(chars: string): Chain;
+}