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-runner.d.ts

@@ -0,0 +1,22 @@
+import { Request, ValidationError } from '../base';
+import { ReadonlyContext } from '../context';
+import { Result } from '../validation-result';
+export type ContextRunningOptions = {
+    /**
+     * Defines whether errors and sanitization should be persisted to `req`.
+     * @default false
+     */
+    dryRun?: boolean;
+};
+export interface ResultWithContext extends Result<ValidationError> {
+    readonly context: ReadonlyContext;
+}
+export interface ContextRunner {
+    /**
+     * Runs the current validation chain.
+     * @param req the express request to validate
+     * @param options an object of options to customize how the chain will be run
+     * @returns a promise for a {@link Result} that resolves when the validation chain has finished
+     */
+    run(req: Request, options?: ContextRunningOptions): Promise<ResultWithContext>;
+}