更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/memfs/LICENSE

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+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <https://unlicense.org>

frontend/node_modules/memfs/README.md

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+# memfs
+
+[![][chat-badge]][chat] [![][npm-badge]][npm-url] [![][travis-badge]][travis-url]
+
+In-memory file-system with [Node's `fs` API](https://nodejs.org/api/fs.html).
+
+- Node's `fs` API implemented, see [_old API Status_](./docs/api-status.md), [missing list](https://github.com/streamich/memfs/issues/735), [missing `opendir`](https://github.com/streamich/memfs/issues/663)
+- Stores files in memory, in `Buffer`s
+- Throws sameish\* errors as Node.js
+- Has concept of _i-nodes_
+- Implements _hard links_
+- Implements _soft links_ (aka symlinks, symbolic links)
+- Permissions may\* be implemented in the future
+- Can be used in browser, see [`memfs-webpack`](https://github.com/streamich/memfs-webpack)
+
+### Install
+
+```shell
+npm install --save memfs
+```
+
+## Usage
+
+```js
+import { fs } from 'memfs';
+
+fs.writeFileSync('/hello.txt', 'World!');
+fs.readFileSync('/hello.txt', 'utf8'); // World!
+```
+
+Create a file system from a plain JSON:
+
+```js
+import { fs, vol } from 'memfs';
+
+const json = {
+  './README.md': '1',
+  './src/index.js': '2',
+  './node_modules/debug/index.js': '3',
+};
+vol.fromJSON(json, '/app');
+
+fs.readFileSync('/app/README.md', 'utf8'); // 1
+vol.readFileSync('/app/src/index.js', 'utf8'); // 2
+```
+
+Export to JSON:
+
+```js
+vol.writeFileSync('/script.sh', 'sudo rm -rf *');
+vol.toJSON(); // {"/script.sh": "sudo rm -rf *"}
+```
+
+Use it for testing:
+
+```js
+vol.writeFileSync('/foo', 'bar');
+expect(vol.toJSON()).toEqual({ '/foo': 'bar' });
+```
+
+Create as many filesystem volumes as you need:
+
+```js
+import { Volume } from 'memfs';
+
+const vol = Volume.fromJSON({ '/foo': 'bar' });
+vol.readFileSync('/foo'); // bar
+
+const vol2 = Volume.fromJSON({ '/foo': 'bar 2' });
+vol2.readFileSync('/foo'); // bar 2
+```
+
+Use `memfs` together with [`unionfs`][unionfs] to create one filesystem
+from your in-memory volumes and the real disk filesystem:
+
+```js
+import * as fs from 'fs';
+import { ufs } from 'unionfs';
+
+ufs.use(fs).use(vol);
+
+ufs.readFileSync('/foo'); // bar
+```
+
+Use [`fs-monkey`][fs-monkey] to monkey-patch Node's `require` function:
+
+```js
+import { patchRequire } from 'fs-monkey';
+
+vol.writeFileSync('/index.js', 'console.log("hi world")');
+patchRequire(vol);
+require('/index'); // hi world
+```
+
+## Docs
+
+- [Reference](./docs/reference.md)
+- [Relative paths](./docs/relative-paths.md)
+- [API status](./docs/api-status.md)
+- [Dependencies](./docs/dependencies.md)
+
+## See also
+
+- [`spyfs`][spyfs] - spies on filesystem actions
+- [`unionfs`][unionfs] - creates a union of multiple filesystem volumes
+- [`linkfs`][linkfs] - redirects filesystem paths
+- [`fs-monkey`][fs-monkey] - monkey-patches Node's `fs` module and `require` function
+- [`libfs`](https://github.com/streamich/full-js/blob/master/src/lib/fs.ts) - real filesystem (that executes UNIX system calls) implemented in JavaScript
+
+[chat]: https://onp4.com/@vadim/~memfs
+[chat-badge]: https://img.shields.io/badge/Chat-%F0%9F%92%AC-green?style=flat&logo=chat&link=https://onp4.com/@vadim/~memfs
+[npm-url]: https://www.npmjs.com/package/memfs
+[npm-badge]: https://img.shields.io/npm/v/memfs.svg
+[travis-url]: https://travis-ci.org/streamich/memfs
+[travis-badge]: https://travis-ci.org/streamich/memfs.svg?branch=master
+[memfs]: https://github.com/streamich/memfs
+[unionfs]: https://github.com/streamich/unionfs
+[linkfs]: https://github.com/streamich/linkfs
+[spyfs]: https://github.com/streamich/spyfs
+[fs-monkey]: https://github.com/streamich/fs-monkey
+
+## License
+
+[Unlicense](./LICENSE) - public domain.

frontend/node_modules/memfs/package.json

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+{
+  "name": "memfs",
+  "version": "3.5.3",
+  "description": "In-memory file-system with Node's fs API.",
+  "keywords": [
+    "fs",
+    "filesystem",
+    "fs.js",
+    "memory-fs",
+    "memfs",
+    "file",
+    "file system",
+    "mount",
+    "memory",
+    "in-memory",
+    "virtual",
+    "test",
+    "testing",
+    "mock"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/streamich/memfs.git"
+  },
+  "license": "Unlicense",
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "files": [
+    "lib"
+  ],
+  "scripts": {
+    "build": "tsc -p . && cp src/getBigInt.js lib/",
+    "clean": "rimraf lib types",
+    "prettier": "prettier --ignore-path .gitignore --write \"src/**/*.{ts,js}\"",
+    "prettier:diff": "prettier -l \"src/**/*.{ts,js}\"",
+    "test": "jest --maxWorkers 2",
+    "test:coverage": "jest --coverage",
+    "test:watch": "jest --watch",
+    "tslint": "tslint \"src/**/*.ts\" -t verbose",
+    "typecheck": "tsc -p .",
+    "watch": "watch \"npm run build\" ./src"
+  },
+  "commitlint": {
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
+  },
+  "config": {
+    "commitizen": {
+      "path": "git-cz"
+    }
+  },
+  "release": {
+    "prepare": [
+      "@semantic-release/changelog",
+      "@semantic-release/npm",
+      "@semantic-release/git"
+    ],
+    "verifyConditions": [
+      "@semantic-release/changelog",
+      "@semantic-release/npm",
+      "@semantic-release/git"
+    ]
+  },
+  "jest": {
+    "moduleFileExtensions": [
+      "ts",
+      "tsx",
+      "js",
+      "jsx"
+    ],
+    "testEnvironment": "node",
+    "testRegex": ".*/__tests__/.*\\.(test|spec)\\.(jsx?|tsx?)$",
+    "transform": {
+      "^.+\\.tsx?$": "ts-jest"
+    }
+  },
+  "dependencies": {
+    "fs-monkey": "^1.0.4"
+  },
+  "devDependencies": {
+    "@semantic-release/changelog": "^6.0.1",
+    "@semantic-release/git": "^10.0.1",
+    "@semantic-release/npm": "^9.0.1",
+    "@types/jest": "^27.5.2",
+    "@types/node": "^10.17.60",
+    "husky": "^8.0.1",
+    "jest": "^28.1.1",
+    "prettier": "^2.7.1",
+    "pretty-quick": "^3.1.3",
+    "rimraf": "^3.0.2",
+    "semantic-release": "^19.0.3",
+    "ts-jest": "^28.0.5",
+    "ts-node": "^10.8.1",
+    "tslint": "^5.20.1",
+    "tslint-config-common": "^1.6.0",
+    "typescript": "^4.7.4"
+  },
+  "engines": {
+    "node": ">= 4.0.0"
+  }
+}