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/deep-extend/package.json

@@ -0,0 +1,62 @@
+{
+  "name": "deep-extend",
+  "description": "Recursive object extending",
+  "license": "MIT",
+  "version": "0.6.0",
+  "homepage": "https://github.com/unclechu/node-deep-extend",
+  "keywords": [
+    "deep-extend",
+    "extend",
+    "deep",
+    "recursive",
+    "xtend",
+    "clone",
+    "merge",
+    "json"
+  ],
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://raw.githubusercontent.com/unclechu/node-deep-extend/master/LICENSE"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/unclechu/node-deep-extend.git"
+  },
+  "author": "Viacheslav Lotsmanov <lotsmanov89@gmail.com>",
+  "bugs": "https://github.com/unclechu/node-deep-extend/issues",
+  "contributors": [
+    {
+      "name": "Romain Prieto",
+      "url": "https://github.com/rprieto"
+    },
+    {
+      "name": "Max Maximov",
+      "url": "https://github.com/maxmaximov"
+    },
+    {
+      "name": "Marshall Bowers",
+      "url": "https://github.com/maxdeviant"
+    },
+    {
+      "name": "Misha Wakerman",
+      "url": "https://github.com/mwakerman"
+    }
+  ],
+  "main": "lib/deep-extend.js",
+  "engines": {
+    "node": ">=4.0.0"
+  },
+  "scripts": {
+    "test": "./node_modules/.bin/mocha"
+  },
+  "devDependencies": {
+    "mocha": "5.2.0",
+    "should": "13.2.1"
+  },
+  "files": [
+    "index.js",
+    "lib/"
+  ]
+}