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-sdk/client-sso/dist-es/runtimeConfig.native.js

@@ -0,0 +1,11 @@
+import { Sha256 } from "@aws-crypto/sha256-js";
+import { getRuntimeConfig as getBrowserRuntimeConfig } from "./runtimeConfig.browser";
+export const getRuntimeConfig = (config) => {
+    const browserDefaults = getBrowserRuntimeConfig(config);
+    return {
+        ...browserDefaults,
+        ...config,
+        runtime: "react-native",
+        sha256: config?.sha256 ?? Sha256,
+    };
+};