更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/rollup-plugin-terser/LICENSE

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+The MIT License (MIT)
+
+Copyright 2018 Bogdan Chadkin <trysound@yandex.ru>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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 OR
+COPYRIGHT HOLDERS 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.

frontend/node_modules/rollup-plugin-terser/README.md

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+# rollup-plugin-terser [![Travis Build Status][travis-img]][travis]
+
+[travis-img]: https://travis-ci.org/TrySound/rollup-plugin-terser.svg
+[travis]: https://travis-ci.org/TrySound/rollup-plugin-terser
+
+[Rollup](https://github.com/rollup/rollup) plugin to minify generated es bundle. Uses [terser](https://github.com/fabiosantoscode/terser) under the hood.
+
+## Install
+
+```sh
+yarn add rollup-plugin-terser --dev
+# Or with npm:
+npm i rollup-plugin-terser --save-dev
+```
+
+_Note: this package requires rollup@0.66 and higher (including rollup@2.0.0)_
+
+## Usage
+
+```js
+import { rollup } from "rollup";
+import { terser } from "rollup-plugin-terser";
+
+rollup({
+  input: "main.js",
+  plugins: [terser()],
+});
+```
+
+## Why named export?
+
+1. Module is a namespace. Default export often leads to function/component per file dogma and makes code less maintainable.
+2. Interop with commonjs is broken in many cases or hard to maintain.
+3. Show me any good language with default exports. It's historical javascriptism.
+
+## Options
+
+> ⚠️ **Caveat:** any function used in options object cannot rely on its surrounding scope, since it is executed in an isolated context.
+
+```js
+terser(options);
+```
+
+`options` - [terser API options](https://github.com/fabiosantoscode/terser#minify-options)
+
+Note: some terser options are set by the plugin automatically:
+
+- `module: true` is set when `format` is `esm` or `es`
+- `toplevel: true` is set when `format` is `cjs`
+
+`options.numWorkers: number`
+
+Amount of workers to spawn. Defaults to the number of CPUs minus 1.
+
+## Examples
+
+### Using as output plugin
+
+```js
+// rollup.config.js
+import { terser } from "rollup-plugin-terser";
+
+export default {
+  input: "index.js",
+  output: [
+    { file: "lib.js", format: "cjs" },
+    { file: "lib.min.js", format: "cjs", plugins: [terser()] },
+    { file: "lib.esm.js", format: "esm" },
+  ],
+};
+```
+
+### Comments
+
+If you'd like to preserve comments (for licensing for example), then you can specify a function to do this like so:
+
+```js
+terser({
+  output: {
+    comments: function (node, comment) {
+      var text = comment.value;
+      var type = comment.type;
+      if (type == "comment2") {
+        // multiline comment
+        return /@preserve|@license|@cc_on/i.test(text);
+      }
+    },
+  },
+});
+```
+
+Alternatively, you can also choose to keep all comments (e.g. if a licensing header has already been prepended by a previous rollup plugin):
+
+```js
+terser({
+  output: {
+    comments: "all",
+  },
+});
+```
+
+See [Terser documentation](https://github.com/fabiosantoscode/terser#terser) for further reference.
+
+# License
+
+MIT © [Bogdan Chadkin](mailto:trysound@yandex.ru)

frontend/node_modules/rollup-plugin-terser/node_modules/jest-worker/LICENSE

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+MIT License
+
+Copyright (c) Facebook, Inc. and its affiliates.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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 OR COPYRIGHT HOLDERS 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.

frontend/node_modules/rollup-plugin-terser/node_modules/jest-worker/README.md

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+# jest-worker
+
+Module for executing heavy tasks under forked processes in parallel, by providing a `Promise` based interface, minimum overhead, and bound workers.
+
+The module works by providing an absolute path of the module to be loaded in all forked processes. Files relative to a node module are also accepted. All methods are exposed on the parent process as promises, so they can be `await`'ed. Child (worker) methods can either be synchronous or asynchronous.
+
+The module also implements support for bound workers. Binding a worker means that, based on certain parameters, the same task will always be executed by the same worker. The way bound workers work is by using the returned string of the `computeWorkerKey` method. If the string was used before for a task, the call will be queued to the related worker that processed the task earlier; if not, it will be executed by the first available worker, then sticked to the worker that executed it; so the next time it will be processed by the same worker. If you have no preference on the worker executing the task, but you have defined a `computeWorkerKey` method because you want _some_ of the tasks to be sticked, you can return `null` from it.
+
+The list of exposed methods can be explicitly provided via the `exposedMethods` option. If it is not provided, it will be obtained by requiring the child module into the main process, and analyzed via reflection. Check the "minimal example" section for a valid one.
+
+## Install
+
+```sh
+$ yarn add jest-worker
+```
+
+## Example
+
+This example covers the minimal usage:
+
+### File `parent.js`
+
+```javascript
+import JestWorker from 'jest-worker';
+
+async function main() {
+  const worker = new JestWorker(require.resolve('./Worker'));
+  const result = await worker.hello('Alice'); // "Hello, Alice"
+}
+
+main();
+```
+
+### File `worker.js`
+
+```javascript
+export function hello(param) {
+  return 'Hello, ' + param;
+}
+```
+
+## Experimental worker
+
+Node 10 shipped with [worker-threads](https://nodejs.org/api/worker_threads.html), a "threading API" that uses SharedArrayBuffers to communicate between the main process and its child threads. This experimental Node feature can significantly improve the communication time between parent and child processes in `jest-worker`.
+
+Since `worker_threads` are considered experimental in Node, you have to opt-in to this behavior by passing `enableWorkerThreads: true` when instantiating the worker. While the feature was unflagged in Node 11.7.0, you'll need to run the Node process with the `--experimental-worker` flag for Node 10.
+
+## API
+
+The only exposed method is a constructor (`JestWorker`) that is initialized by passing the worker path, plus an options object.
+
+### `workerPath: string` (required)
+
+Node module name or absolute path of the file to be loaded in the child processes. Use `require.resolve` to transform a relative path into an absolute one.
+
+### `options: Object` (optional)
+
+#### `exposedMethods: $ReadOnlyArray<string>` (optional)
+
+List of method names that can be called on the child processes from the parent process. You cannot expose any method named like a public `Worker` method, or starting with `_`. If you use method auto-discovery, then these methods will not be exposed, even if they exist.
+
+#### `numWorkers: number` (optional)
+
+Amount of workers to spawn. Defaults to the number of CPUs minus 1.
+
+#### `maxRetries: number` (optional)
+
+Maximum amount of times that a dead child can be re-spawned, per call. Defaults to `3`, pass `Infinity` to allow endless retries.
+
+#### `forkOptions: Object` (optional)
+
+Allow customizing all options passed to `childProcess.fork`. By default, some values are set (`cwd`, `env` and `execArgv`), but you can override them and customize the rest. For a list of valid values, check [the Node documentation](https://nodejs.org/api/child_process.html#child_process_child_process_fork_modulepath_args_options).
+
+#### `computeWorkerKey: (method: string, ...args: Array<any>) => ?string` (optional)
+
+Every time a method exposed via the API is called, `computeWorkerKey` is also called in order to bound the call to a worker. This is useful for workers that are able to cache the result or part of it. You bound calls to a worker by making `computeWorkerKey` return the same identifier for all different calls. If you do not want to bind the call to any worker, return `null`.
+
+The callback you provide is called with the method name, plus all the rest of the arguments of the call. Thus, you have full control to decide what to return. Check a practical example on bound workers under the "bound worker usage" section.
+
+By default, no process is bound to any worker.
+
+#### `setupArgs: Array<mixed>` (optional)
+
+The arguments that will be passed to the `setup` method during initialization.
+
+#### `WorkerPool: (workerPath: string, options?: WorkerPoolOptions) => WorkerPoolInterface` (optional)
+
+Provide a custom worker pool to be used for spawning child processes. By default, Jest will use a node thread pool if available and fall back to child process threads.
+
+#### `enableWorkerThreads: boolean` (optional)
+
+`jest-worker` will automatically detect if `worker_threads` are available, but will not use them unless passed `enableWorkerThreads: true`.
+
+## JestWorker
+
+### Methods
+
+The returned `JestWorker` instance has all the exposed methods, plus some additional ones to interact with the workers itself:
+
+#### `getStdout(): Readable`
+
+Returns a `ReadableStream` where the standard output of all workers is piped. Note that the `silent` option of the child workers must be set to `true` to make it work. This is the default set by `jest-worker`, but keep it in mind when overriding options through `forkOptions`.
+
+#### `getStderr(): Readable`
+
+Returns a `ReadableStream` where the standard error of all workers is piped. Note that the `silent` option of the child workers must be set to `true` to make it work. This is the default set by `jest-worker`, but keep it in mind when overriding options through `forkOptions`.
+
+#### `end()`
+
+Finishes the workers by killing all workers. No further calls can be done to the `Worker` instance.
+
+Returns a Promise that resolves with `{ forceExited: boolean }` once all workers are dead. If `forceExited` is `true`, at least one of the workers did not exit gracefully, which likely happened because it executed a leaky task that left handles open. This should be avoided, force exiting workers is a last resort to prevent creating lots of orphans.
+
+**Note:**
+
+`await`ing the `end()` Promise immediately after the workers are no longer needed before proceeding to do other useful things in your program may not be a good idea. If workers have to be force exited, `jest-worker` may go through multiple stages of force exiting (e.g. SIGTERM, later SIGKILL) and give the worker overall around 1 second time to exit on its own. During this time, your program will wait, even though it may not be necessary that all workers are dead before continuing execution.
+
+Consider deliberately leaving this Promise floating (unhandled resolution). After your program has done the rest of its work and is about to exit, the Node process will wait for the Promise to resolve after all workers are dead as the last event loop task. That way you parallelized computation time of your program and waiting time and you didn't delay the outputs of your program unnecessarily.
+
+### Worker IDs
+
+Each worker has a unique id (index that starts with `1`), which is available inside the worker as `process.env.JEST_WORKER_ID`.
+
+## Setting up and tearing down the child process
+
+The child process can define two special methods (both of them can be asynchronous):
+
+- `setup()`: If defined, it's executed before the first call to any method in the child.
+- `teardown()`: If defined, it's executed when the farm ends.
+
+# More examples
+
+## Standard usage
+
+This example covers the standard usage:
+
+### File `parent.js`
+
+```javascript
+import JestWorker from 'jest-worker';
+
+async function main() {
+  const myWorker = new JestWorker(require.resolve('./Worker'), {
+    exposedMethods: ['foo', 'bar', 'getWorkerId'],
+    numWorkers: 4,
+  });
+
+  console.log(await myWorker.foo('Alice')); // "Hello from foo: Alice"
+  console.log(await myWorker.bar('Bob')); // "Hello from bar: Bob"
+  console.log(await myWorker.getWorkerId()); // "3" -> this message has sent from the 3rd worker
+
+  const {forceExited} = await myWorker.end();
+  if (forceExited) {
+    console.error('Workers failed to exit gracefully');
+  }
+}
+
+main();
+```
+
+### File `worker.js`
+
+```javascript
+export function foo(param) {
+  return 'Hello from foo: ' + param;
+}
+
+export function bar(param) {
+  return 'Hello from bar: ' + param;
+}
+
+export function getWorkerId() {
+  return process.env.JEST_WORKER_ID;
+}
+```
+
+## Bound worker usage:
+
+This example covers the usage with a `computeWorkerKey` method:
+
+### File `parent.js`
+
+```javascript
+import JestWorker from 'jest-worker';
+
+async function main() {
+  const myWorker = new JestWorker(require.resolve('./Worker'), {
+    computeWorkerKey: (method, filename) => filename,
+  });
+
+  // Transform the given file, within the first available worker.
+  console.log(await myWorker.transform('/tmp/foo.js'));
+
+  // Wait a bit.
+  await sleep(10000);
+
+  // Transform the same file again. Will immediately return because the
+  // transformed file is cached in the worker, and `computeWorkerKey` ensures
+  // the same worker that processed the file the first time will process it now.
+  console.log(await myWorker.transform('/tmp/foo.js'));
+
+  const {forceExited} = await myWorker.end();
+  if (forceExited) {
+    console.error('Workers failed to exit gracefully');
+  }
+}
+
+main();
+```
+
+### File `worker.js`
+
+```javascript
+import babel from '@babel/core';
+
+const cache = Object.create(null);
+
+export function transform(filename) {
+  if (cache[filename]) {
+    return cache[filename];
+  }
+
+  // jest-worker can handle both immediate results and thenables. If a
+  // thenable is returned, it will be await'ed until it resolves.
+  return babel.transformFileAsync(filename).then(result => {
+    cache[filename] = result;
+
+    return result;
+  });
+}
+```

frontend/node_modules/rollup-plugin-terser/node_modules/jest-worker/package.json

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+{
+  "name": "jest-worker",
+  "version": "26.6.2",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/facebook/jest.git",
+    "directory": "packages/jest-worker"
+  },
+  "license": "MIT",
+  "main": "build/index.js",
+  "types": "build/index.d.ts",
+  "dependencies": {
+    "@types/node": "*",
+    "merge-stream": "^2.0.0",
+    "supports-color": "^7.0.0"
+  },
+  "devDependencies": {
+    "@types/merge-stream": "^1.1.2",
+    "@types/supports-color": "^7.2.0",
+    "get-stream": "^6.0.0",
+    "worker-farm": "^1.6.0"
+  },
+  "engines": {
+    "node": ">= 10.13.0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "gitHead": "4c46930615602cbf983fb7e8e82884c282a624d5"
+}

frontend/node_modules/rollup-plugin-terser/node_modules/serialize-javascript/LICENSE

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+Copyright 2014 Yahoo! Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the Yahoo! Inc. nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL YAHOO! INC. BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

frontend/node_modules/rollup-plugin-terser/node_modules/serialize-javascript/README.md

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+Serialize JavaScript
+====================
+
+Serialize JavaScript to a _superset_ of JSON that includes regular expressions, dates and functions.
+
+[![npm Version][npm-badge]][npm]
+[![Dependency Status][david-badge]][david]
+[![Build Status][travis-badge]][travis]
+
+## Overview
+
+The code in this package began its life as an internal module to [express-state][]. To expand its usefulness, it now lives as `serialize-javascript` — an independent package on npm.
+
+You're probably wondering: **What about `JSON.stringify()`!?** We've found that sometimes we need to serialize JavaScript **functions**, **regexps**, **dates**, **sets** or **maps**. A great example is a web app that uses client-side URL routing where the route definitions are regexps that need to be shared from the server to the client. But this module is also great for communicating between node processes.
+
+The string returned from this package's single export function is literal JavaScript which can be saved to a `.js` file, or be embedded into an HTML document by making the content of a `<script>` element.
+
+> **HTML characters and JavaScript line terminators are escaped automatically.**
+
+Please note that serialization for ES6 Sets & Maps requires support for `Array.from` (not available in IE or Node < 0.12), or an `Array.from` polyfill.
+
+## Installation
+
+Install using npm:
+
+```shell
+$ npm install serialize-javascript
+```
+
+## Usage
+
+```js
+var serialize = require('serialize-javascript');
+
+serialize({
+    str  : 'string',
+    num  : 0,
+    obj  : {foo: 'foo'},
+    arr  : [1, 2, 3],
+    bool : true,
+    nil  : null,
+    undef: undefined,
+    inf  : Infinity,
+    date : new Date("Thu, 28 Apr 2016 22:02:17 GMT"),
+    map  : new Map([['hello', 'world']]),
+    set  : new Set([123, 456]),
+    fn   : function echo(arg) { return arg; },
+    re   : /([^\s]+)/g,
+    big  : BigInt(10),
+});
+```
+
+The above will produce the following string output:
+
+```js
+'{"str":"string","num":0,"obj":{"foo":"foo"},"arr":[1,2,3],"bool":true,"nil":null,"undef":undefined,"inf":Infinity,"date":new Date("2016-04-28T22:02:17.000Z"),"map":new Map([["hello","world"]]),"set":new Set([123,456]),"fn":function echo(arg) { return arg; },"re":new RegExp("([^\\\\s]+)", "g"),"big":BigInt("10")}'
+```
+
+Note: to produced a beautified string, you can pass an optional second argument to `serialize()` to define the number of spaces to be used for the indentation.
+
+### Automatic Escaping of HTML Characters
+
+A primary feature of this package is to serialize code to a string of literal JavaScript which can be embedded in an HTML document by adding it as the contents of the `<script>` element. In order to make this safe, HTML characters and JavaScript line terminators are escaped automatically.
+
+```js
+serialize({
+    haxorXSS: '</script>'
+});
+```
+
+The above will produce the following string, HTML-escaped output which is safe to put into an HTML document as it will not cause the inline script element to terminate:
+
+```js
+'{"haxorXSS":"\\u003C\\u002Fscript\\u003E"}'
+```
+
+> You can pass an optional `unsafe` argument to `serialize()` for straight serialization.
+
+### Options
+
+The `serialize()` function accepts an `options` object as its second argument. All options are being defaulted to `undefined`:
+
+#### `options.space`
+
+This option is the same as the `space` argument that can be passed to [`JSON.stringify`][JSON.stringify]. It can be used to add whitespace and indentation to the serialized output to make it more readable.
+
+```js
+serialize(obj, {space: 2});
+```
+
+#### `options.isJSON`
+
+This option is a signal to `serialize()` that the object being serialized does not contain any function or regexps values. This enables a hot-path that allows serialization to be over 3x faster. If you're serializing a lot of data, and know its pure JSON, then you can enable this option for a speed-up.
+
+**Note:** That when using this option, the output will still be escaped to protect against XSS.
+
+```js
+serialize(obj, {isJSON: true});
+```
+
+#### `options.unsafe`
+
+This option is to signal `serialize()` that we want to do a straight conversion, without the XSS protection. This options needs to be explicitly set to `true`. HTML characters and JavaScript line terminators will not be escaped. You will have to roll your own.
+
+```js
+serialize(obj, {unsafe: true});
+```
+
+#### `options.ignoreFunction`
+
+This option is to signal `serialize()` that we do not want serialize JavaScript function. 
+Just treat function like `JSON.stringify` do, but other features will work as expected.
+
+```js
+serialize(obj, {ignoreFunction: true});
+```
+
+## Deserializing
+
+For some use cases you might also need to deserialize the string. This is explicitly not part of this module. However, you can easily write it yourself:
+
+```js
+function deserialize(serializedJavascript){
+  return eval('(' + serializedJavascript + ')');
+}
+```
+
+**Note:** Don't forget the parentheses around the serialized javascript, as the opening bracket `{` will be considered to be the start of a body.
+
+## License
+
+This software is free to use under the Yahoo! Inc. BSD license.
+See the [LICENSE file][LICENSE] for license text and copyright information.
+
+
+[npm]: https://www.npmjs.org/package/serialize-javascript
+[npm-badge]: https://img.shields.io/npm/v/serialize-javascript.svg?style=flat-square
+[david]: https://david-dm.org/yahoo/serialize-javascript
+[david-badge]: https://img.shields.io/david/yahoo/serialize-javascript.svg?style=flat-square
+[travis]: https://travis-ci.org/yahoo/serialize-javascript
+[travis-badge]: https://img.shields.io/travis/yahoo/serialize-javascript.svg?style=flat-square
+[express-state]: https://github.com/yahoo/express-state
+[JSON.stringify]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
+[LICENSE]: https://github.com/yahoo/serialize-javascript/blob/master/LICENSE

frontend/node_modules/rollup-plugin-terser/node_modules/serialize-javascript/index.js

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+/*
+Copyright (c) 2014, Yahoo! Inc. All rights reserved.
+Copyrights licensed under the New BSD License.
+See the accompanying LICENSE file for terms.
+*/
+
+'use strict';
+
+var randomBytes = require('randombytes');
+
+// Generate an internal UID to make the regexp pattern harder to guess.
+var UID_LENGTH          = 16;
+var UID                 = generateUID();
+var PLACE_HOLDER_REGEXP = new RegExp('(\\\\)?"@__(F|R|D|M|S|U|I|B)-' + UID + '-(\\d+)__@"', 'g');
+
+var IS_NATIVE_CODE_REGEXP = /\{\s*\[native code\]\s*\}/g;
+var IS_PURE_FUNCTION = /function.*?\(/;
+var IS_ARROW_FUNCTION = /.*?=>.*?/;
+var UNSAFE_CHARS_REGEXP   = /[<>\/\u2028\u2029]/g;
+
+var RESERVED_SYMBOLS = ['*', 'async'];
+
+// Mapping of unsafe HTML and invalid JavaScript line terminator chars to their
+// Unicode char counterparts which are safe to use in JavaScript strings.
+var ESCAPED_CHARS = {
+    '<'     : '\\u003C',
+    '>'     : '\\u003E',
+    '/'     : '\\u002F',
+    '\u2028': '\\u2028',
+    '\u2029': '\\u2029'
+};
+
+function escapeUnsafeChars(unsafeChar) {
+    return ESCAPED_CHARS[unsafeChar];
+}
+
+function generateUID() {
+    var bytes = randomBytes(UID_LENGTH);
+    var result = '';
+    for(var i=0; i<UID_LENGTH; ++i) {
+        result += bytes[i].toString(16);
+    }
+    return result;
+}
+
+function deleteFunctions(obj){
+    var functionKeys = [];
+    for (var key in obj) {
+        if (typeof obj[key] === "function") {
+            functionKeys.push(key);
+        }
+    }
+    for (var i = 0; i < functionKeys.length; i++) {
+        delete obj[functionKeys[i]];
+    }
+}
+
+module.exports = function serialize(obj, options) {
+    options || (options = {});
+
+    // Backwards-compatibility for `space` as the second argument.
+    if (typeof options === 'number' || typeof options === 'string') {
+        options = {space: options};
+    }
+
+    var functions = [];
+    var regexps   = [];
+    var dates     = [];
+    var maps      = [];
+    var sets      = [];
+    var undefs    = [];
+    var infinities= [];
+    var bigInts = [];
+
+    // Returns placeholders for functions and regexps (identified by index)
+    // which are later replaced by their string representation.
+    function replacer(key, value) {
+
+        // For nested function
+        if(options.ignoreFunction){
+            deleteFunctions(value);
+        }
+
+        if (!value && value !== undefined) {
+            return value;
+        }
+
+        // If the value is an object w/ a toJSON method, toJSON is called before
+        // the replacer runs, so we use this[key] to get the non-toJSONed value.
+        var origValue = this[key];
+        var type = typeof origValue;
+
+        if (type === 'object') {
+            if(origValue instanceof RegExp) {
+                return '@__R-' + UID + '-' + (regexps.push(origValue) - 1) + '__@';
+            }
+
+            if(origValue instanceof Date) {
+                return '@__D-' + UID + '-' + (dates.push(origValue) - 1) + '__@';
+            }
+
+            if(origValue instanceof Map) {
+                return '@__M-' + UID + '-' + (maps.push(origValue) - 1) + '__@';
+            }
+
+            if(origValue instanceof Set) {
+                return '@__S-' + UID + '-' + (sets.push(origValue) - 1) + '__@';
+            }
+        }
+
+        if (type === 'function') {
+            return '@__F-' + UID + '-' + (functions.push(origValue) - 1) + '__@';
+        }
+
+        if (type === 'undefined') {
+            return '@__U-' + UID + '-' + (undefs.push(origValue) - 1) + '__@';
+        }
+
+        if (type === 'number' && !isNaN(origValue) && !isFinite(origValue)) {
+            return '@__I-' + UID + '-' + (infinities.push(origValue) - 1) + '__@';
+        }
+
+        if (type === 'bigint') {
+            return '@__B-' + UID + '-' + (bigInts.push(origValue) - 1) + '__@';
+        }
+
+        return value;
+    }
+
+    function serializeFunc(fn) {
+      var serializedFn = fn.toString();
+      if (IS_NATIVE_CODE_REGEXP.test(serializedFn)) {
+          throw new TypeError('Serializing native function: ' + fn.name);
+      }
+
+      // pure functions, example: {key: function() {}}
+      if(IS_PURE_FUNCTION.test(serializedFn)) {
+          return serializedFn;
+      }
+
+      // arrow functions, example: arg1 => arg1+5
+      if(IS_ARROW_FUNCTION.test(serializedFn)) {
+          return serializedFn;
+      }
+
+      var argsStartsAt = serializedFn.indexOf('(');
+      var def = serializedFn.substr(0, argsStartsAt)
+        .trim()
+        .split(' ')
+        .filter(function(val) { return val.length > 0 });
+
+      var nonReservedSymbols = def.filter(function(val) {
+        return RESERVED_SYMBOLS.indexOf(val) === -1
+      });
+
+      // enhanced literal objects, example: {key() {}}
+      if(nonReservedSymbols.length > 0) {
+          return (def.indexOf('async') > -1 ? 'async ' : '') + 'function'
+            + (def.join('').indexOf('*') > -1 ? '*' : '')
+            + serializedFn.substr(argsStartsAt);
+      }
+
+      // arrow functions
+      return serializedFn;
+    }
+
+    // Check if the parameter is function
+    if (options.ignoreFunction && typeof obj === "function") {
+        obj = undefined;
+    }
+    // Protects against `JSON.stringify()` returning `undefined`, by serializing
+    // to the literal string: "undefined".
+    if (obj === undefined) {
+        return String(obj);
+    }
+
+    var str;
+
+    // Creates a JSON string representation of the value.
+    // NOTE: Node 0.12 goes into slow mode with extra JSON.stringify() args.
+    if (options.isJSON && !options.space) {
+        str = JSON.stringify(obj);
+    } else {
+        str = JSON.stringify(obj, options.isJSON ? null : replacer, options.space);
+    }
+
+    // Protects against `JSON.stringify()` returning `undefined`, by serializing
+    // to the literal string: "undefined".
+    if (typeof str !== 'string') {
+        return String(str);
+    }
+
+    // Replace unsafe HTML and invalid JavaScript line terminator chars with
+    // their safe Unicode char counterpart. This _must_ happen before the
+    // regexps and functions are serialized and added back to the string.
+    if (options.unsafe !== true) {
+        str = str.replace(UNSAFE_CHARS_REGEXP, escapeUnsafeChars);
+    }
+
+    if (functions.length === 0 && regexps.length === 0 && dates.length === 0 && maps.length === 0 && sets.length === 0 && undefs.length === 0 && infinities.length === 0 && bigInts.length === 0) {
+        return str;
+    }
+
+    // Replaces all occurrences of function, regexp, date, map and set placeholders in the
+    // JSON string with their string representations. If the original value can
+    // not be found, then `undefined` is used.
+    return str.replace(PLACE_HOLDER_REGEXP, function (match, backSlash, type, valueIndex) {
+        // The placeholder may not be preceded by a backslash. This is to prevent
+        // replacing things like `"a\"@__R-<UID>-0__@"` and thus outputting
+        // invalid JS.
+        if (backSlash) {
+            return match;
+        }
+
+        if (type === 'D') {
+            return "new Date(\"" + dates[valueIndex].toISOString() + "\")";
+        }
+
+        if (type === 'R') {
+            return "new RegExp(" + serialize(regexps[valueIndex].source) + ", \"" + regexps[valueIndex].flags + "\")";
+        }
+
+        if (type === 'M') {
+            return "new Map(" + serialize(Array.from(maps[valueIndex].entries()), options) + ")";
+        }
+
+        if (type === 'S') {
+            return "new Set(" + serialize(Array.from(sets[valueIndex].values()), options) + ")";
+        }
+
+        if (type === 'U') {
+            return 'undefined'
+        }
+
+        if (type === 'I') {
+            return infinities[valueIndex];
+        }
+
+        if (type === 'B') {
+            return "BigInt(\"" + bigInts[valueIndex] + "\")";
+        }
+
+        var fn = functions[valueIndex];
+
+        return serializeFunc(fn);
+    });
+}

frontend/node_modules/rollup-plugin-terser/node_modules/serialize-javascript/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "serialize-javascript",
+  "version": "4.0.0",
+  "description": "Serialize JavaScript to a superset of JSON that includes regular expressions and functions.",
+  "main": "index.js",
+  "scripts": {
+    "benchmark": "node -v && node test/benchmark/serialize.js",
+    "test": "nyc --reporter=lcov mocha test/unit"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/yahoo/serialize-javascript.git"
+  },
+  "keywords": [
+    "serialize",
+    "serialization",
+    "javascript",
+    "js",
+    "json"
+  ],
+  "author": "Eric Ferraiuolo <edf@ericf.me>",
+  "license": "BSD-3-Clause",
+  "bugs": {
+    "url": "https://github.com/yahoo/serialize-javascript/issues"
+  },
+  "homepage": "https://github.com/yahoo/serialize-javascript",
+  "devDependencies": {
+    "benchmark": "^2.1.4",
+    "chai": "^4.1.0",
+    "mocha": "^7.0.0",
+    "nyc": "^15.0.0"
+  },
+  "dependencies": {
+    "randombytes": "^2.1.0"
+  }
+}

frontend/node_modules/rollup-plugin-terser/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "rollup-plugin-terser",
+  "version": "7.0.2",
+  "description": "Rollup plugin to minify generated es bundle",
+  "type": "commonjs",
+  "main": "rollup-plugin-terser.js",
+  "types": "rollup-plugin-terser.d.ts",
+  "exports": {
+    "require": "./rollup-plugin-terser.js",
+    "import": "./rollup-plugin-terser.mjs"
+  },
+  "files": [
+    "rollup-plugin-terser.js",
+    "rollup-plugin-terser.mjs",
+    "rollup-plugin-terser.d.ts",
+    "transform.js"
+  ],
+  "scripts": {
+    "test": "jest",
+    "prepublish": "yarn test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/TrySound/rollup-plugin-terser.git"
+  },
+  "keywords": [
+    "rollup",
+    "rollup-plugin",
+    "terser",
+    "minify"
+  ],
+  "author": "Bogdan Chadkin <trysound@yandex.ru>",
+  "license": "MIT",
+  "dependencies": {
+    "@babel/code-frame": "^7.10.4",
+    "jest-worker": "^26.2.1",
+    "serialize-javascript": "^4.0.0",
+    "terser": "^5.0.0"
+  },
+  "peerDependencies": {
+    "rollup": "^2.0.0"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.11.1",
+    "jest": "^26.2.2",
+    "prettier": "^2.0.5",
+    "rollup": "^2.23.1"
+  }
+}

frontend/node_modules/rollup-plugin-terser/rollup-plugin-terser.d.ts

@@ -0,0 +1,11 @@
+import { Plugin } from "rollup";
+import { MinifyOptions } from "terser";
+
+export interface Options extends Omit<MinifyOptions, "sourceMap"> {
+  /**
+   * Amount of workers to spawn. Defaults to the number of CPUs minus 1.
+   */
+  numWorkers?: number;
+}
+
+export declare function terser(options?: Options): Plugin;

frontend/node_modules/rollup-plugin-terser/rollup-plugin-terser.js

@@ -0,0 +1,102 @@
+const { codeFrameColumns } = require("@babel/code-frame");
+const Worker = require("jest-worker").default;
+const serialize = require("serialize-javascript");
+
+function terser(userOptions = {}) {
+  if (userOptions.sourceMap != null) {
+    throw Error(
+      "sourceMap option is removed. Now it is inferred from rollup options."
+    );
+  }
+  if (userOptions.sourcemap != null) {
+    throw Error(
+      "sourcemap option is removed. Now it is inferred from rollup options."
+    );
+  }
+
+  return {
+    name: "terser",
+
+    async renderChunk(code, chunk, outputOptions) {
+      if (!this.worker) {
+        this.worker = new Worker(require.resolve("./transform.js"), {
+          numWorkers: userOptions.numWorkers,
+        });
+        this.numOfBundles = 0;
+      }
+
+      this.numOfBundles++;
+
+      const defaultOptions = {
+        sourceMap:
+          outputOptions.sourcemap === true ||
+          typeof outputOptions.sourcemap === "string",
+      };
+      if (outputOptions.format === "es" || outputOptions.format === "esm") {
+        defaultOptions.module = true;
+      }
+      if (outputOptions.format === "cjs") {
+        defaultOptions.toplevel = true;
+      }
+
+      const normalizedOptions = { ...defaultOptions, ...userOptions };
+
+      // remove plugin specific options
+      for (let key of ["numWorkers"]) {
+        if (normalizedOptions.hasOwnProperty(key)) {
+          delete normalizedOptions[key];
+        }
+      }
+
+      const serializedOptions = serialize(normalizedOptions);
+
+      try {
+        const result = await this.worker.transform(code, serializedOptions);
+
+        if (result.nameCache) {
+          let { vars, props } = userOptions.nameCache;
+
+          // only assign nameCache.vars if it was provided, and if terser produced values:
+          if (vars) {
+            const newVars =
+              result.nameCache.vars && result.nameCache.vars.props;
+            if (newVars) {
+              vars.props = vars.props || {};
+              Object.assign(vars.props, newVars);
+            }
+          }
+
+          // support populating an empty nameCache object:
+          if (!props) {
+            props = userOptions.nameCache.props = {};
+          }
+
+          // merge updated props into original nameCache object:
+          const newProps =
+            result.nameCache.props && result.nameCache.props.props;
+          if (newProps) {
+            props.props = props.props || {};
+            Object.assign(props.props, newProps);
+          }
+        }
+
+        return result.result;
+      } catch (error) {
+        const { message, line, col: column } = error;
+        console.error(
+          codeFrameColumns(code, { start: { line, column } }, { message })
+        );
+        throw error;
+      } finally {
+        this.numOfBundles--;
+
+        if (this.numOfBundles === 0) {
+          this.worker.end();
+          this.worker = 0;
+        }
+      }
+    },
+  };
+}
+
+exports.terser = terser;

frontend/node_modules/rollup-plugin-terser/rollup-plugin-terser.mjs

@@ -0,0 +1,3 @@
+import terserModule from "./rollup-plugin-terser.js";
+
+export const terser = terserModule.terser;

frontend/node_modules/rollup-plugin-terser/transform.js

@@ -0,0 +1,8 @@
+const { minify } = require("terser");
+
+const transform = (code, optionsString) => {
+  const options = eval(`(${optionsString})`);
+  return minify(code, options).then(result => ({ result, nameCache: options.nameCache }));
+};
+
+exports.transform = transform;