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/context-handler-impl.d.ts

@@ -0,0 +1,13 @@
+import { ContextBuilder } from '../context-builder';
+import { CustomValidator } from '../base';
+import { BailOptions, ContextHandler, OptionalOptions } from './context-handler';
+import { ContextRunner } from './context-runner';
+export declare class ContextHandlerImpl<Chain> implements ContextHandler<Chain> {
+    private readonly builder;
+    private readonly chain;
+    constructor(builder: ContextBuilder, chain: Chain);
+    bail(opts?: BailOptions): Chain;
+    if(condition: CustomValidator | ContextRunner): Chain;
+    optional(options?: OptionalOptions | boolean): Chain;
+    hide(hiddenValue?: string): Chain;
+}