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/compress-commons/lib/archivers/zip/unix-stat.js

@@ -0,0 +1,53 @@
+/**
+ * node-compress-commons
+ *
+ * Copyright (c) 2014 Chris Talkington, contributors.
+ * Licensed under the MIT license.
+ * https://github.com/archiverjs/node-compress-commons/blob/master/LICENSE-MIT
+ */
+module.exports = {
+    /**
+     * Bits used for permissions (and sticky bit)
+     */
+    PERM_MASK: 4095, // 07777
+
+    /**
+     * Bits used to indicate the filesystem object type.
+     */
+    FILE_TYPE_FLAG: 61440, // 0170000
+
+    /**
+     * Indicates symbolic links.
+     */
+    LINK_FLAG: 40960, // 0120000
+
+    /**
+     * Indicates plain files.
+     */
+    FILE_FLAG: 32768, // 0100000
+
+    /**
+     * Indicates directories.
+     */
+    DIR_FLAG: 16384, // 040000
+
+    // ----------------------------------------------------------
+    // somewhat arbitrary choices that are quite common for shared
+    // installations
+    // -----------------------------------------------------------
+
+    /**
+     * Default permissions for symbolic links.
+     */
+    DEFAULT_LINK_PERM: 511, // 0777
+
+    /**
+     * Default permissions for directories.
+     */
+    DEFAULT_DIR_PERM: 493, // 0755
+
+    /**
+     * Default permissions for plain files.
+     */
+    DEFAULT_FILE_PERM: 420 // 0644
+};