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/util-body-length-node/dist-es/calculateBodyLength.js

@@ -0,0 +1,27 @@
+import { fstatSync, lstatSync, ReadStream } from "node:fs";
+export const calculateBodyLength = (body) => {
+    if (!body) {
+        return 0;
+    }
+    if (typeof body === "string") {
+        return Buffer.byteLength(body);
+    }
+    else if (typeof body.byteLength === "number") {
+        return body.byteLength;
+    }
+    else if (typeof body.size === "number") {
+        return body.size;
+    }
+    else if (typeof body.start === "number" && typeof body.end === "number") {
+        return body.end + 1 - body.start;
+    }
+    else if (body instanceof ReadStream) {
+        if (body.path != null) {
+            return lstatSync(body.path).size;
+        }
+        else if (typeof body.fd === "number") {
+            return fstatSync(body.fd).size;
+        }
+    }
+    throw new Error(`Body Length computation failed for ${body}`);
+};

backend/node_modules/@smithy/util-body-length-node/dist-es/index.js

@@ -0,0 +1 @@
+export * from "./calculateBodyLength";