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/svg-captcha/package.json

@@ -0,0 +1,59 @@
+{
+  "name": "svg-captcha",
+  "version": "1.4.0",
+  "description": "generate svg captcha in node.js or express.js",
+  "main": "index.js",
+  "scripts": {
+    "test": "jest",
+    "lint": "xo"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/steambap/svg-captcha.git"
+  },
+  "keywords": [
+    "captcha",
+    "svg",
+    "node captcha",
+    "captcha generator",
+    "captcha alternative"
+  ],
+  "author": {
+    "name": "Weilin Shi",
+    "email": "934587911@qq.com"
+  },
+  "engines": {
+    "node": ">=4.x"
+  },
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/steambap/svg-captcha/issues"
+  },
+  "homepage": "https://github.com/steambap/svg-captcha#readme",
+  "dependencies": {
+    "opentype.js": "^0.7.3"
+  },
+  "devDependencies": {
+    "jest": "^21.1.0",
+    "jest-environment-node-debug": "^2.0.0",
+    "xo": "^0.18.2"
+  },
+  "xo": {
+    "esnext": true,
+    "envs": [
+      "jest"
+    ],
+    "rules": {
+      "linebreak-style": [
+        0
+      ]
+    }
+  },
+  "typings": "index.d.ts",
+  "files": [
+    "fonts/*",
+    "lib/*",
+    "index.d.ts",
+    "*.md"
+  ]
+}