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/constants.d.ts

@@ -0,0 +1,10 @@
+export declare const SHA_1_HASH: {
+    name: "SHA-1";
+};
+export declare const SHA_1_HMAC_ALGO: {
+    name: "HMAC";
+    hash: {
+        name: "SHA-1";
+    };
+};
+export declare const EMPTY_DATA_SHA_1: Uint8Array;