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/@aws-crypto/sha1-browser/build/main/index.js

@@ -0,0 +1,8 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WebCryptoSha1 = void 0;
+var tslib_1 = require("tslib");
+tslib_1.__exportStar(require("./crossPlatformSha1"), exports);
+var webCryptoSha1_1 = require("./webCryptoSha1");
+Object.defineProperty(exports, "WebCryptoSha1", { enumerable: true, get: function () { return webCryptoSha1_1.Sha1; } });
+//# sourceMappingURL=index.js.map