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/@smithy/config-resolver/dist-es/regionConfig/config.js

@@ -0,0 +1,12 @@
+export const REGION_ENV_NAME = "AWS_REGION";
+export const REGION_INI_NAME = "region";
+export const NODE_REGION_CONFIG_OPTIONS = {
+    environmentVariableSelector: (env) => env[REGION_ENV_NAME],
+    configFileSelector: (profile) => profile[REGION_INI_NAME],
+    default: () => {
+        throw new Error("Region is missing");
+    },
+};
+export const NODE_REGION_CONFIG_FILE_OPTIONS = {
+    preferredFile: "credentials",
+};