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/middleware-bucket-endpoint/dist-es/configurations.js

@@ -0,0 +1,12 @@
+export function resolveBucketEndpointConfig(input) {
+    const { bucketEndpoint = false, forcePathStyle = false, useAccelerateEndpoint = false, useArnRegion, disableMultiregionAccessPoints = false, } = input;
+    return Object.assign(input, {
+        bucketEndpoint,
+        forcePathStyle,
+        useAccelerateEndpoint,
+        useArnRegion: typeof useArnRegion === "function" ? useArnRegion : () => Promise.resolve(useArnRegion),
+        disableMultiregionAccessPoints: typeof disableMultiregionAccessPoints === "function"
+            ? disableMultiregionAccessPoints
+            : () => Promise.resolve(disableMultiregionAccessPoints),
+    });
+}