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/context-items/chain-condition.js

@@ -0,0 +1,16 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ChainCondition = void 0;
+const base_1 = require("../base");
+class ChainCondition {
+    constructor(chain) {
+        this.chain = chain;
+    }
+    async run(_context, _value, meta) {
+        const result = await this.chain.run(meta.req, { dryRun: true });
+        if (!result.isEmpty()) {
+            throw new base_1.ValidationHalt();
+        }
+    }
+}
+exports.ChainCondition = ChainCondition;