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- Complete React TypeScript frontend with modern UI components
- Distributed workflows management interface with real-time updates
- Socket.IO integration for live agent status monitoring
- Agent management dashboard with cluster visualization
- Project management interface with metrics and task tracking
- Responsive design with proper error handling and loading states

Backend Infrastructure:
- Distributed coordinator for multi-agent workflow orchestration
- Cluster management API with comprehensive agent operations
- Enhanced database models for agents and projects
- Project service for filesystem-based project discovery
- Performance monitoring and metrics collection
- Comprehensive API documentation and error handling

Documentation:
- Complete distributed development guide (README_DISTRIBUTED.md)
- Comprehensive development report with architecture insights
- System configuration templates and deployment guides

The platform now provides a complete web interface for managing the distributed AI cluster
with real-time monitoring, workflow orchestration, and agent coordination capabilities.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/node_modules/@humanwhocodes/config-array/LICENSE

@@ -0,0 +1,201 @@
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frontend/node_modules/@humanwhocodes/config-array/README.md

@@ -0,0 +1,342 @@
+# Config Array
+
+by [Nicholas C. Zakas](https://humanwhocodes.com)
+
+If you find this useful, please consider supporting my work with a [donation](https://humanwhocodes.com/donate).
+
+## Description
+
+A config array is a way of managing configurations that are based on glob pattern matching of filenames. Each config array contains the information needed to determine the correct configuration for any file based on the filename. 
+
+## Background
+
+In 2019, I submitted an [ESLint RFC](https://github.com/eslint/rfcs/pull/9) proposing a new way of configuring ESLint. The goal was to streamline what had become an increasingly complicated configuration process. Over several iterations, this proposal was eventually born.
+
+The basic idea is that all configuration, including overrides, can be represented by a single array where each item in the array is a config object. Config objects appearing later in the array override config objects appearing earlier in the array. You can calculate a config for a given file by traversing all config objects in the array to find the ones that match the filename. Matching is done by specifying glob patterns in `files` and `ignores` properties on each config object. Here's an example:
+
+```js
+export default [
+
+    // match all JSON files
+    {
+        name: "JSON Handler",
+        files: ["**/*.json"],
+        handler: jsonHandler
+    },
+
+    // match only package.json
+    {
+        name: "package.json Handler",
+        files: ["package.json"],
+        handler: packageJsonHandler
+    }
+];
+```
+
+In this example, there are two config objects: the first matches all JSON files in all directories and the second matches just `package.json` in the base path directory (all the globs are evaluated as relative to a base path that can be specified). When you retrieve a configuration for `foo.json`, only the first config object matches so `handler` is equal to `jsonHandler`; when you retrieve a configuration for `package.json`, `handler` is equal to `packageJsonHandler` (because both config objects match, the second one wins).
+
+## Installation
+
+You can install the package using npm or Yarn:
+
+```bash
+npm install @humanwhocodes/config-array --save
+
+# or
+
+yarn add @humanwhocodes/config-array
+```
+
+## Usage
+
+First, import the `ConfigArray` constructor:
+
+```js
+import { ConfigArray } from "@humanwhocodes/config-array";
+
+// or using CommonJS
+
+const { ConfigArray } = require("@humanwhocodes/config-array");
+```
+
+When you create a new instance of `ConfigArray`, you must pass in two arguments: an array of configs and an options object. The array of configs is most likely read in from a configuration file, so here's a typical example:
+
+```js
+const configFilename = path.resolve(process.cwd(), "my.config.js");
+const { default: rawConfigs } = await import(configFilename);
+const configs = new ConfigArray(rawConfigs, {
+    
+    // the path to match filenames from
+    basePath: process.cwd(),
+
+    // additional items in each config
+    schema: mySchema
+});
+```
+
+This example reads in an object or array from `my.config.js` and passes it into the `ConfigArray` constructor as the first argument. The second argument is an object specifying the `basePath` (the directory in which `my.config.js` is found) and a `schema` to define the additional properties of a config object beyond `files`, `ignores`, and `name`.
+
+### Specifying a Schema
+
+The `schema` option is required for you to use additional properties in config objects. The schema is an object that follows the format of an [`ObjectSchema`](https://npmjs.com/package/@humanwhocodes/object-schema). The schema specifies both validation and merge rules that the `ConfigArray` instance needs to combine configs when there are multiple matches. Here's an example:
+
+```js
+const configFilename = path.resolve(process.cwd(), "my.config.js");
+const { default: rawConfigs } = await import(configFilename);
+
+const mySchema = {
+
+    // define the handler key in configs
+    handler: {
+        required: true,
+        merge(a, b) {
+            if (!b) return a;
+            if (!a) return b;
+        },
+        validate(value) {
+            if (typeof value !== "function") {
+                throw new TypeError("Function expected.");
+            }
+        }
+    }
+};
+
+const configs = new ConfigArray(rawConfigs, {
+    
+    // the path to match filenames from
+    basePath: process.cwd(),
+
+    // additional item schemas in each config
+    schema: mySchema,
+
+    // additional config types supported (default: [])
+    extraConfigTypes: ["array", "function"];
+});
+```
+
+### Config Arrays
+
+Config arrays can be multidimensional, so it's possible for a config array to contain another config array when `extraConfigTypes` contains `"array"`, such as:
+
+```js
+export default [
+    
+    // JS config
+    {
+        files: ["**/*.js"],
+        handler: jsHandler
+    },
+
+    // JSON configs
+    [
+
+        // match all JSON files
+        {
+            name: "JSON Handler",
+            files: ["**/*.json"],
+            handler: jsonHandler
+        },
+
+        // match only package.json
+        {
+            name: "package.json Handler",
+            files: ["package.json"],
+            handler: packageJsonHandler
+        }
+    ],
+
+    // filename must match function
+    {
+        files: [ filePath => filePath.endsWith(".md") ],
+        handler: markdownHandler
+    },
+
+    // filename must match all patterns in subarray
+    {
+        files: [ ["*.test.*", "*.js"] ],
+        handler: jsTestHandler
+    },
+
+    // filename must not match patterns beginning with !
+    {
+        name: "Non-JS files",
+        files: ["!*.js"],
+        settings: {
+            js: false
+        }
+    }
+];
+```
+
+In this example, the array contains both config objects and a config array. When a config array is normalized (see details below), it is flattened so only config objects remain. However, the order of evaluation remains the same.
+
+If the `files` array contains a function, then that function is called with the absolute path of the file and is expected to return `true` if there is a match and `false` if not. (The `ignores` array can also contain functions.)
+
+If the `files` array contains an item that is an array of strings and functions, then all patterns must match in order for the config to match. In the preceding examples, both `*.test.*` and `*.js` must match in order for the config object to be used.
+
+If a pattern in the files array begins with `!` then it excludes that pattern. In the preceding example, any filename that doesn't end with `.js` will automatically get a `settings.js` property set to `false`.
+
+You can also specify an `ignores` key that will force files matching those patterns to not be included. If the `ignores` key is in a config object without any other keys, then those ignores will always be applied; otherwise those ignores act as exclusions. Here's an example:
+
+```js
+export default [
+    
+    // Always ignored
+    {
+        ignores: ["**/.git/**", "**/node_modules/**"]
+    },
+
+    // .eslintrc.js file is ignored only when .js file matches
+    {
+        files: ["**/*.js"],
+        ignores: [".eslintrc.js"]
+        handler: jsHandler
+    }
+];
+```
+
+You can use negated patterns in `ignores` to exclude a file that was already ignored, such as:
+
+```js
+export default [
+    
+    // Ignore all JSON files except tsconfig.json
+    {
+        files: ["**/*"],
+        ignores: ["**/*.json", "!tsconfig.json"]
+    },
+
+];
+```
+
+### Config Functions
+
+Config arrays can also include config functions when `extraConfigTypes` contains `"function"`. A config function accepts a single parameter, `context` (defined by you), and must return either a config object or a config array (it cannot return another function). Config functions allow end users to execute code in the creation of appropriate config objects. Here's an example:
+
+```js
+export default [
+    
+    // JS config
+    {
+        files: ["**/*.js"],
+        handler: jsHandler
+    },
+
+    // JSON configs
+    function (context) {
+        return [
+
+            // match all JSON files
+            {
+                name: context.name + " JSON Handler",
+                files: ["**/*.json"],
+                handler: jsonHandler
+            },
+
+            // match only package.json
+            {
+                name: context.name + " package.json Handler",
+                files: ["package.json"],
+                handler: packageJsonHandler
+            }
+        ];
+    }
+];
+```
+
+When a config array is normalized, each function is executed and replaced in the config array with the return value.
+
+**Note:** Config functions can also be async.
+
+### Normalizing Config Arrays
+
+Once a config array has been created and loaded with all of the raw config data, it must be normalized before it can be used. The normalization process goes through and flattens the config array as well as executing all config functions to get their final values.
+
+To normalize a config array, call the `normalize()` method and pass in a context object:
+
+```js
+await configs.normalize({
+    name: "MyApp"
+});
+```
+
+The `normalize()` method returns a promise, so be sure to use the `await` operator. The config array instance is normalized in-place, so you don't need to create a new variable.
+
+If you want to disallow async config functions, you can call `normalizeSync()` instead. This method is completely synchronous and does not require using the `await` operator as it does not return a promise:
+
+```js
+await configs.normalizeSync({
+    name: "MyApp"
+});
+```
+
+**Important:** Once a `ConfigArray` is normalized, it cannot be changed further. You can, however, create a new `ConfigArray` and pass in the normalized instance to create an unnormalized copy.
+
+### Getting Config for a File
+
+To get the config for a file, use the `getConfig()` method on a normalized config array and pass in the filename to get a config for:
+
+```js
+// pass in absolute filename
+const fileConfig = configs.getConfig(path.resolve(process.cwd(), "package.json"));
+```
+
+The config array always returns an object, even if there are no configs matching the given filename. You can then inspect the returned config object to determine how to proceed.
+
+A few things to keep in mind:
+
+* You must pass in the absolute filename to get a config for.
+* The returned config object never has `files`, `ignores`, or `name` properties; the only properties on the object will be the other configuration options specified.
+* The config array caches configs, so subsequent calls to `getConfig()` with the same filename will return in a fast lookup rather than another calculation.
+* A config will only be generated if the filename matches an entry in a `files` key. A config will not be generated without matching a `files` key (configs without a `files` key are only applied when another config with a `files` key is applied; configs without `files` are never applied on their own). Any config with a `files` key entry ending with `/**` or `/*` will only be applied if another entry in the same `files` key matches or another config matches.
+
+## Determining Ignored Paths
+
+You can determine if a file is ignored by using the `isFileIgnored()` method and passing in the absolute path of any file, as in this example:
+
+```js
+const ignored = configs.isFileIgnored('/foo/bar/baz.txt');
+```
+
+A file is considered ignored if any of the following is true:
+
+* **It's parent directory is ignored.** For example, if `foo` is in `ignores`, then `foo/a.js` is considered ignored.
+* **It has an ancestor directory that is ignored.** For example, if `foo` is in `ignores`, then `foo/baz/a.js` is considered ignored.
+* **It matches an ignored file pattern.** For example, if `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
+* **If it matches an entry in `files` and also in `ignores`.** For example, if `**/*.js` is in `files` and `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
+* **The file is outside the `basePath`.** If the `basePath` is `/usr/me`, then `/foo/a.js` is considered ignored.
+
+For directories, use the `isDirectoryIgnored()` method and pass in the absolute path of any directory, as in this example:
+
+```js
+const ignored = configs.isDirectoryIgnored('/foo/bar/');
+```
+
+A directory is considered ignored if any of the following is true:
+
+* **It's parent directory is ignored.** For example, if `foo` is in `ignores`, then `foo/baz` is considered ignored.
+* **It has an ancestor directory that is ignored.** For example, if `foo` is in `ignores`, then `foo/bar/baz/a.js` is considered ignored.
+* **It matches and ignored file pattern.** For example, if `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
+* **If it matches an entry in `files` and also in `ignores`.** For example, if `**/*.js` is in `files` and `**/a.js` is in `ignores`, then `foo/a.js` and `foo/baz/a.js` are considered ignored.
+* **The file is outside the `basePath`.** If the `basePath` is `/usr/me`, then `/foo/a.js` is considered ignored.
+
+**Important:** A pattern such as `foo/**` means that `foo` and `foo/` are *not* ignored whereas `foo/bar` is ignored. If you want to ignore `foo` and all of its subdirectories, use the pattern `foo` or `foo/` in `ignores`.
+
+## Caching Mechanisms
+
+Each `ConfigArray` aggressively caches configuration objects to avoid unnecessary work. This caching occurs in two ways:
+
+1. **File-based Caching.** For each filename that is passed into a method, the resulting config is cached against that filename so you're always guaranteed to get the same object returned from `getConfig()` whenever you pass the same filename in.
+2. **Index-based Caching.** Whenever a config is calculated, the config elements that were used to create the config are also cached. So if a given filename matches elements 1, 5, and 7, the resulting config is cached with a key of `1,5,7`. That way, if another file is passed that matches the same config elements, the result is already known and doesn't have to be recalculated. That means two files that match all the same elements will return the same config from `getConfig()`.
+
+## Acknowledgements
+
+The design of this project was influenced by feedback on the ESLint RFC, and incorporates ideas from:
+
+* Teddy Katz (@not-an-aardvark)
+* Toru Nagashima (@mysticatea)
+* Kai Cataldo (@kaicataldo)
+
+## License
+
+Apache 2.0

frontend/node_modules/@humanwhocodes/config-array/node_modules/brace-expansion/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+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/@humanwhocodes/config-array/node_modules/brace-expansion/README.md

@@ -0,0 +1,129 @@
+# brace-expansion
+
+[Brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html), 
+as known from sh/bash, in JavaScript.
+
+[![build status](https://secure.travis-ci.org/juliangruber/brace-expansion.svg)](http://travis-ci.org/juliangruber/brace-expansion)
+[![downloads](https://img.shields.io/npm/dm/brace-expansion.svg)](https://www.npmjs.org/package/brace-expansion)
+[![Greenkeeper badge](https://badges.greenkeeper.io/juliangruber/brace-expansion.svg)](https://greenkeeper.io/)
+
+[![testling badge](https://ci.testling.com/juliangruber/brace-expansion.png)](https://ci.testling.com/juliangruber/brace-expansion)
+
+## Example
+
+```js
+var expand = require('brace-expansion');
+
+expand('file-{a,b,c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('-v{,,}')
+// => ['-v', '-v', '-v']
+
+expand('file{0..2}.jpg')
+// => ['file0.jpg', 'file1.jpg', 'file2.jpg']
+
+expand('file-{a..c}.jpg')
+// => ['file-a.jpg', 'file-b.jpg', 'file-c.jpg']
+
+expand('file{2..0}.jpg')
+// => ['file2.jpg', 'file1.jpg', 'file0.jpg']
+
+expand('file{0..4..2}.jpg')
+// => ['file0.jpg', 'file2.jpg', 'file4.jpg']
+
+expand('file-{a..e..2}.jpg')
+// => ['file-a.jpg', 'file-c.jpg', 'file-e.jpg']
+
+expand('file{00..10..5}.jpg')
+// => ['file00.jpg', 'file05.jpg', 'file10.jpg']
+
+expand('{{A..C},{a..c}}')
+// => ['A', 'B', 'C', 'a', 'b', 'c']
+
+expand('ppp{,config,oe{,conf}}')
+// => ['ppp', 'pppconfig', 'pppoe', 'pppoeconf']
+```
+
+## API
+
+```js
+var expand = require('brace-expansion');
+```
+
+### var expanded = expand(str)
+
+Return an array of all possible and valid expansions of `str`. If none are
+found, `[str]` is returned.
+
+Valid expansions are:
+
+```js
+/^(.*,)+(.+)?$/
+// {a,b,...}
+```
+
+A comma separated list of options, like `{a,b}` or `{a,{b,c}}` or `{,a,}`.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+A numeric sequence from `x` to `y` inclusive, with optional increment.
+If `x` or `y` start with a leading `0`, all the numbers will be padded
+to have equal length. Negative numbers and backwards iteration work too.
+
+```js
+/^-?\d+\.\.-?\d+(\.\.-?\d+)?$/
+// {x..y[..incr]}
+```
+
+An alphabetic sequence from `x` to `y` inclusive, with optional increment.
+`x` and `y` must be exactly one character, and if given, `incr` must be a
+number.
+
+For compatibility reasons, the string `${` is not eligible for brace expansion.
+
+## Installation
+
+With [npm](https://npmjs.org) do:
+
+```bash
+npm install brace-expansion
+```
+
+## Contributors
+
+- [Julian Gruber](https://github.com/juliangruber)
+- [Isaac Z. Schlueter](https://github.com/isaacs)
+
+## Sponsors
+
+This module is proudly supported by my [Sponsors](https://github.com/juliangruber/sponsors)!
+
+Do you want to support modules like this to improve their quality, stability and weigh in on new features? Then please consider donating to my [Patreon](https://www.patreon.com/juliangruber). Not sure how much of my modules you're using? Try [feross/thanks](https://github.com/feross/thanks)!
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+
+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/@humanwhocodes/config-array/node_modules/brace-expansion/index.js

@@ -0,0 +1,201 @@
+var concatMap = require('concat-map');
+var balanced = require('balanced-match');
+
+module.exports = expandTop;
+
+var escSlash = '\0SLASH'+Math.random()+'\0';
+var escOpen = '\0OPEN'+Math.random()+'\0';
+var escClose = '\0CLOSE'+Math.random()+'\0';
+var escComma = '\0COMMA'+Math.random()+'\0';
+var escPeriod = '\0PERIOD'+Math.random()+'\0';
+
+function numeric(str) {
+  return parseInt(str, 10) == str
+    ? parseInt(str, 10)
+    : str.charCodeAt(0);
+}
+
+function escapeBraces(str) {
+  return str.split('\\\\').join(escSlash)
+            .split('\\{').join(escOpen)
+            .split('\\}').join(escClose)
+            .split('\\,').join(escComma)
+            .split('\\.').join(escPeriod);
+}
+
+function unescapeBraces(str) {
+  return str.split(escSlash).join('\\')
+            .split(escOpen).join('{')
+            .split(escClose).join('}')
+            .split(escComma).join(',')
+            .split(escPeriod).join('.');
+}
+
+
+// Basically just str.split(","), but handling cases
+// where we have nested braced sections, which should be
+// treated as individual members, like {a,{b,c},d}
+function parseCommaParts(str) {
+  if (!str)
+    return [''];
+
+  var parts = [];
+  var m = balanced('{', '}', str);
+
+  if (!m)
+    return str.split(',');
+
+  var pre = m.pre;
+  var body = m.body;
+  var post = m.post;
+  var p = pre.split(',');
+
+  p[p.length-1] += '{' + body + '}';
+  var postParts = parseCommaParts(post);
+  if (post.length) {
+    p[p.length-1] += postParts.shift();
+    p.push.apply(p, postParts);
+  }
+
+  parts.push.apply(parts, p);
+
+  return parts;
+}
+
+function expandTop(str) {
+  if (!str)
+    return [];
+
+  // I don't know why Bash 4.3 does this, but it does.
+  // Anything starting with {} will have the first two bytes preserved
+  // but *only* at the top level, so {},a}b will not expand to anything,
+  // but a{},b}c will be expanded to [a}c,abc].
+  // One could argue that this is a bug in Bash, but since the goal of
+  // this module is to match Bash's rules, we escape a leading {}
+  if (str.substr(0, 2) === '{}') {
+    str = '\\{\\}' + str.substr(2);
+  }
+
+  return expand(escapeBraces(str), true).map(unescapeBraces);
+}
+
+function identity(e) {
+  return e;
+}
+
+function embrace(str) {
+  return '{' + str + '}';
+}
+function isPadded(el) {
+  return /^-?0\d/.test(el);
+}
+
+function lte(i, y) {
+  return i <= y;
+}
+function gte(i, y) {
+  return i >= y;
+}
+
+function expand(str, isTop) {
+  var expansions = [];
+
+  var m = balanced('{', '}', str);
+  if (!m || /\$$/.test(m.pre)) return [str];
+
+  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
+  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
+  var isSequence = isNumericSequence || isAlphaSequence;
+  var isOptions = m.body.indexOf(',') >= 0;
+  if (!isSequence && !isOptions) {
+    // {a},b}
+    if (m.post.match(/,(?!,).*\}/)) {
+      str = m.pre + '{' + m.body + escClose + m.post;
+      return expand(str);
+    }
+    return [str];
+  }
+
+  var n;
+  if (isSequence) {
+    n = m.body.split(/\.\./);
+  } else {
+    n = parseCommaParts(m.body);
+    if (n.length === 1) {
+      // x{{a,b}}y ==> x{a}y x{b}y
+      n = expand(n[0], false).map(embrace);
+      if (n.length === 1) {
+        var post = m.post.length
+          ? expand(m.post, false)
+          : [''];
+        return post.map(function(p) {
+          return m.pre + n[0] + p;
+        });
+      }
+    }
+  }
+
+  // at this point, n is the parts, and we know it's not a comma set
+  // with a single entry.
+
+  // no need to expand pre, since it is guaranteed to be free of brace-sets
+  var pre = m.pre;
+  var post = m.post.length
+    ? expand(m.post, false)
+    : [''];
+
+  var N;
+
+  if (isSequence) {
+    var x = numeric(n[0]);
+    var y = numeric(n[1]);
+    var width = Math.max(n[0].length, n[1].length)
+    var incr = n.length == 3
+      ? Math.abs(numeric(n[2]))
+      : 1;
+    var test = lte;
+    var reverse = y < x;
+    if (reverse) {
+      incr *= -1;
+      test = gte;
+    }
+    var pad = n.some(isPadded);
+
+    N = [];
+
+    for (var i = x; test(i, y); i += incr) {
+      var c;
+      if (isAlphaSequence) {
+        c = String.fromCharCode(i);
+        if (c === '\\')
+          c = '';
+      } else {
+        c = String(i);
+        if (pad) {
+          var need = width - c.length;
+          if (need > 0) {
+            var z = new Array(need + 1).join('0');
+            if (i < 0)
+              c = '-' + z + c.slice(1);
+            else
+              c = z + c;
+          }
+        }
+      }
+      N.push(c);
+    }
+  } else {
+    N = concatMap(n, function(el) { return expand(el, false) });
+  }
+
+  for (var j = 0; j < N.length; j++) {
+    for (var k = 0; k < post.length; k++) {
+      var expansion = pre + N[j] + post[k];
+      if (!isTop || isSequence || expansion)
+        expansions.push(expansion);
+    }
+  }
+
+  return expansions;
+}
+

frontend/node_modules/@humanwhocodes/config-array/node_modules/brace-expansion/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "brace-expansion",
+  "description": "Brace expansion as known from sh/bash",
+  "version": "1.1.12",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/brace-expansion.git"
+  },
+  "homepage": "https://github.com/juliangruber/brace-expansion",
+  "main": "index.js",
+  "scripts": {
+    "test": "tape test/*.js",
+    "gentest": "bash test/generate.sh",
+    "bench": "matcha test/perf/bench.js"
+  },
+  "dependencies": {
+    "balanced-match": "^1.0.0",
+    "concat-map": "0.0.1"
+  },
+  "devDependencies": {
+    "matcha": "^0.7.0",
+    "tape": "^4.6.0"
+  },
+  "keywords": [],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT",
+  "testling": {
+    "files": "test/*.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/20..latest",
+      "firefox/nightly",
+      "chrome/25..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "publishConfig": {
+    "tag": "1.x"
+  }
+}

frontend/node_modules/@humanwhocodes/config-array/node_modules/minimatch/LICENSE

@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

frontend/node_modules/@humanwhocodes/config-array/node_modules/minimatch/README.md

@@ -0,0 +1,230 @@
+# minimatch
+
+A minimal matching utility.
+
+[![Build Status](https://travis-ci.org/isaacs/minimatch.svg?branch=master)](http://travis-ci.org/isaacs/minimatch)
+
+
+This is the matching library used internally by npm.
+
+It works by converting glob expressions into JavaScript `RegExp`
+objects.
+
+## Usage
+
+```javascript
+var minimatch = require("minimatch")
+
+minimatch("bar.foo", "*.foo") // true!
+minimatch("bar.foo", "*.bar") // false!
+minimatch("bar.foo", "*.+(bar|foo)", { debug: true }) // true, and noisy!
+```
+
+## Features
+
+Supports these glob features:
+
+* Brace Expansion
+* Extended glob matching
+* "Globstar" `**` matching
+
+See:
+
+* `man sh`
+* `man bash`
+* `man 3 fnmatch`
+* `man 5 gitignore`
+
+## Minimatch Class
+
+Create a minimatch object by instantiating the `minimatch.Minimatch` class.
+
+```javascript
+var Minimatch = require("minimatch").Minimatch
+var mm = new Minimatch(pattern, options)
+```
+
+### Properties
+
+* `pattern` The original pattern the minimatch object represents.
+* `options` The options supplied to the constructor.
+* `set` A 2-dimensional array of regexp or string expressions.
+  Each row in the
+  array corresponds to a brace-expanded pattern.  Each item in the row
+  corresponds to a single path-part.  For example, the pattern
+  `{a,b/c}/d` would expand to a set of patterns like:
+
+        [ [ a, d ]
+        , [ b, c, d ] ]
+
+    If a portion of the pattern doesn't have any "magic" in it
+    (that is, it's something like `"foo"` rather than `fo*o?`), then it
+    will be left as a string rather than converted to a regular
+    expression.
+
+* `regexp` Created by the `makeRe` method.  A single regular expression
+  expressing the entire pattern.  This is useful in cases where you wish
+  to use the pattern somewhat like `fnmatch(3)` with `FNM_PATH` enabled.
+* `negate` True if the pattern is negated.
+* `comment` True if the pattern is a comment.
+* `empty` True if the pattern is `""`.
+
+### Methods
+
+* `makeRe` Generate the `regexp` member if necessary, and return it.
+  Will return `false` if the pattern is invalid.
+* `match(fname)` Return true if the filename matches the pattern, or
+  false otherwise.
+* `matchOne(fileArray, patternArray, partial)` Take a `/`-split
+  filename, and match it against a single row in the `regExpSet`.  This
+  method is mainly for internal use, but is exposed so that it can be
+  used by a glob-walker that needs to avoid excessive filesystem calls.
+
+All other methods are internal, and will be called as necessary.
+
+### minimatch(path, pattern, options)
+
+Main export.  Tests a path against the pattern using the options.
+
+```javascript
+var isJS = minimatch(file, "*.js", { matchBase: true })
+```
+
+### minimatch.filter(pattern, options)
+
+Returns a function that tests its
+supplied argument, suitable for use with `Array.filter`.  Example:
+
+```javascript
+var javascripts = fileList.filter(minimatch.filter("*.js", {matchBase: true}))
+```
+
+### minimatch.match(list, pattern, options)
+
+Match against the list of
+files, in the style of fnmatch or glob.  If nothing is matched, and
+options.nonull is set, then return a list containing the pattern itself.
+
+```javascript
+var javascripts = minimatch.match(fileList, "*.js", {matchBase: true}))
+```
+
+### minimatch.makeRe(pattern, options)
+
+Make a regular expression object from the pattern.
+
+## Options
+
+All options are `false` by default.
+
+### debug
+
+Dump a ton of stuff to stderr.
+
+### nobrace
+
+Do not expand `{a,b}` and `{1..3}` brace sets.
+
+### noglobstar
+
+Disable `**` matching against multiple folder names.
+
+### dot
+
+Allow patterns to match filenames starting with a period, even if
+the pattern does not explicitly have a period in that spot.
+
+Note that by default, `a/**/b` will **not** match `a/.d/b`, unless `dot`
+is set.
+
+### noext
+
+Disable "extglob" style patterns like `+(a|b)`.
+
+### nocase
+
+Perform a case-insensitive match.
+
+### nonull
+
+When a match is not found by `minimatch.match`, return a list containing
+the pattern itself if this option is set.  When not set, an empty list
+is returned if there are no matches.
+
+### matchBase
+
+If set, then patterns without slashes will be matched
+against the basename of the path if it contains slashes.  For example,
+`a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`.
+
+### nocomment
+
+Suppress the behavior of treating `#` at the start of a pattern as a
+comment.
+
+### nonegate
+
+Suppress the behavior of treating a leading `!` character as negation.
+
+### flipNegate
+
+Returns from negate expressions the same as if they were not negated.
+(Ie, true on a hit, false on a miss.)
+
+### partial
+
+Compare a partial path to a pattern.  As long as the parts of the path that
+are present are not contradicted by the pattern, it will be treated as a
+match.  This is useful in applications where you're walking through a
+folder structure, and don't yet have the full path, but want to ensure that
+you do not walk down paths that can never be a match.
+
+For example,
+
+```js
+minimatch('/a/b', '/a/*/c/d', { partial: true })  // true, might be /a/b/c/d
+minimatch('/a/b', '/**/d', { partial: true })     // true, might be /a/b/.../d
+minimatch('/x/y/z', '/a/**/z', { partial: true }) // false, because x !== a
+```
+
+### allowWindowsEscape
+
+Windows path separator `\` is by default converted to `/`, which
+prohibits the usage of `\` as a escape character. This flag skips that
+behavior and allows using the escape character.
+
+## Comparisons to other fnmatch/glob implementations
+
+While strict compliance with the existing standards is a worthwhile
+goal, some discrepancies exist between minimatch and other
+implementations, and are intentional.
+
+If the pattern starts with a `!` character, then it is negated.  Set the
+`nonegate` flag to suppress this behavior, and treat leading `!`
+characters normally.  This is perhaps relevant if you wish to start the
+pattern with a negative extglob pattern like `!(a|B)`.  Multiple `!`
+characters at the start of a pattern will negate the pattern multiple
+times.
+
+If a pattern starts with `#`, then it is treated as a comment, and
+will not match anything.  Use `\#` to match a literal `#` at the
+start of a line, or set the `nocomment` flag to suppress this behavior.
+
+The double-star character `**` is supported by default, unless the
+`noglobstar` flag is set.  This is supported in the manner of bsdglob
+and bash 4.1, where `**` only has special significance if it is the only
+thing in a path part.  That is, `a/**/b` will match `a/x/y/b`, but
+`a/**b` will not.
+
+If an escaped pattern has no matches, and the `nonull` flag is set,
+then minimatch.match returns the pattern as-provided, rather than
+interpreting the character escapes.  For example,
+`minimatch.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
+`"*a?"`.  This is akin to setting the `nullglob` option in bash, except
+that it does not resolve escaped pattern characters.
+
+If brace expansion is not disabled, then it is performed before any
+other interpretation of the glob pattern.  Thus, a pattern like
+`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
+**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
+checked for validity.  Since those two are valid, matching proceeds.

frontend/node_modules/@humanwhocodes/config-array/node_modules/minimatch/minimatch.js

@@ -0,0 +1,947 @@
+module.exports = minimatch
+minimatch.Minimatch = Minimatch
+
+var path = (function () { try { return require('path') } catch (e) {}}()) || {
+  sep: '/'
+}
+minimatch.sep = path.sep
+
+var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
+var expand = require('brace-expansion')
+
+var plTypes = {
+  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
+  '?': { open: '(?:', close: ')?' },
+  '+': { open: '(?:', close: ')+' },
+  '*': { open: '(?:', close: ')*' },
+  '@': { open: '(?:', close: ')' }
+}
+
+// any single thing other than /
+// don't need to escape / when using new RegExp()
+var qmark = '[^/]'
+
+// * => any number of characters
+var star = qmark + '*?'
+
+// ** when dots are allowed.  Anything goes, except .. and .
+// not (^ or / followed by one or two dots followed by $ or /),
+// followed by anything, any number of times.
+var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'
+
+// not a ^ or / followed by a dot,
+// followed by anything, any number of times.
+var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'
+
+// characters that need to be escaped in RegExp.
+var reSpecials = charSet('().*{}+?[]^$\\!')
+
+// "abc" -> { a:true, b:true, c:true }
+function charSet (s) {
+  return s.split('').reduce(function (set, c) {
+    set[c] = true
+    return set
+  }, {})
+}
+
+// normalizes slashes.
+var slashSplit = /\/+/
+
+minimatch.filter = filter
+function filter (pattern, options) {
+  options = options || {}
+  return function (p, i, list) {
+    return minimatch(p, pattern, options)
+  }
+}
+
+function ext (a, b) {
+  b = b || {}
+  var t = {}
+  Object.keys(a).forEach(function (k) {
+    t[k] = a[k]
+  })
+  Object.keys(b).forEach(function (k) {
+    t[k] = b[k]
+  })
+  return t
+}
+
+minimatch.defaults = function (def) {
+  if (!def || typeof def !== 'object' || !Object.keys(def).length) {
+    return minimatch
+  }
+
+  var orig = minimatch
+
+  var m = function minimatch (p, pattern, options) {
+    return orig(p, pattern, ext(def, options))
+  }
+
+  m.Minimatch = function Minimatch (pattern, options) {
+    return new orig.Minimatch(pattern, ext(def, options))
+  }
+  m.Minimatch.defaults = function defaults (options) {
+    return orig.defaults(ext(def, options)).Minimatch
+  }
+
+  m.filter = function filter (pattern, options) {
+    return orig.filter(pattern, ext(def, options))
+  }
+
+  m.defaults = function defaults (options) {
+    return orig.defaults(ext(def, options))
+  }
+
+  m.makeRe = function makeRe (pattern, options) {
+    return orig.makeRe(pattern, ext(def, options))
+  }
+
+  m.braceExpand = function braceExpand (pattern, options) {
+    return orig.braceExpand(pattern, ext(def, options))
+  }
+
+  m.match = function (list, pattern, options) {
+    return orig.match(list, pattern, ext(def, options))
+  }
+
+  return m
+}
+
+Minimatch.defaults = function (def) {
+  return minimatch.defaults(def).Minimatch
+}
+
+function minimatch (p, pattern, options) {
+  assertValidPattern(pattern)
+
+  if (!options) options = {}
+
+  // shortcut: comments match nothing.
+  if (!options.nocomment && pattern.charAt(0) === '#') {
+    return false
+  }
+
+  return new Minimatch(pattern, options).match(p)
+}
+
+function Minimatch (pattern, options) {
+  if (!(this instanceof Minimatch)) {
+    return new Minimatch(pattern, options)
+  }
+
+  assertValidPattern(pattern)
+
+  if (!options) options = {}
+
+  pattern = pattern.trim()
+
+  // windows support: need to use /, not \
+  if (!options.allowWindowsEscape && path.sep !== '/') {
+    pattern = pattern.split(path.sep).join('/')
+  }
+
+  this.options = options
+  this.set = []
+  this.pattern = pattern
+  this.regexp = null
+  this.negate = false
+  this.comment = false
+  this.empty = false
+  this.partial = !!options.partial
+
+  // make the set of regexps etc.
+  this.make()
+}
+
+Minimatch.prototype.debug = function () {}
+
+Minimatch.prototype.make = make
+function make () {
+  var pattern = this.pattern
+  var options = this.options
+
+  // empty patterns and comments match nothing.
+  if (!options.nocomment && pattern.charAt(0) === '#') {
+    this.comment = true
+    return
+  }
+  if (!pattern) {
+    this.empty = true
+    return
+  }
+
+  // step 1: figure out negation, etc.
+  this.parseNegate()
+
+  // step 2: expand braces
+  var set = this.globSet = this.braceExpand()
+
+  if (options.debug) this.debug = function debug() { console.error.apply(console, arguments) }
+
+  this.debug(this.pattern, set)
+
+  // step 3: now we have a set, so turn each one into a series of path-portion
+  // matching patterns.
+  // These will be regexps, except in the case of "**", which is
+  // set to the GLOBSTAR object for globstar behavior,
+  // and will not contain any / characters
+  set = this.globParts = set.map(function (s) {
+    return s.split(slashSplit)
+  })
+
+  this.debug(this.pattern, set)
+
+  // glob --> regexps
+  set = set.map(function (s, si, set) {
+    return s.map(this.parse, this)
+  }, this)
+
+  this.debug(this.pattern, set)
+
+  // filter out everything that didn't compile properly.
+  set = set.filter(function (s) {
+    return s.indexOf(false) === -1
+  })
+
+  this.debug(this.pattern, set)
+
+  this.set = set
+}
+
+Minimatch.prototype.parseNegate = parseNegate
+function parseNegate () {
+  var pattern = this.pattern
+  var negate = false
+  var options = this.options
+  var negateOffset = 0
+
+  if (options.nonegate) return
+
+  for (var i = 0, l = pattern.length
+    ; i < l && pattern.charAt(i) === '!'
+    ; i++) {
+    negate = !negate
+    negateOffset++
+  }
+
+  if (negateOffset) this.pattern = pattern.substr(negateOffset)
+  this.negate = negate
+}
+
+// Brace expansion:
+// a{b,c}d -> abd acd
+// a{b,}c -> abc ac
+// a{0..3}d -> a0d a1d a2d a3d
+// a{b,c{d,e}f}g -> abg acdfg acefg
+// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
+//
+// Invalid sets are not expanded.
+// a{2..}b -> a{2..}b
+// a{b}c -> a{b}c
+minimatch.braceExpand = function (pattern, options) {
+  return braceExpand(pattern, options)
+}
+
+Minimatch.prototype.braceExpand = braceExpand
+
+function braceExpand (pattern, options) {
+  if (!options) {
+    if (this instanceof Minimatch) {
+      options = this.options
+    } else {
+      options = {}
+    }
+  }
+
+  pattern = typeof pattern === 'undefined'
+    ? this.pattern : pattern
+
+  assertValidPattern(pattern)
+
+  // Thanks to Yeting Li <https://github.com/yetingli> for
+  // improving this regexp to avoid a ReDOS vulnerability.
+  if (options.nobrace || !/\{(?:(?!\{).)*\}/.test(pattern)) {
+    // shortcut. no need to expand.
+    return [pattern]
+  }
+
+  return expand(pattern)
+}
+
+var MAX_PATTERN_LENGTH = 1024 * 64
+var assertValidPattern = function (pattern) {
+  if (typeof pattern !== 'string') {
+    throw new TypeError('invalid pattern')
+  }
+
+  if (pattern.length > MAX_PATTERN_LENGTH) {
+    throw new TypeError('pattern is too long')
+  }
+}
+
+// parse a component of the expanded set.
+// At this point, no pattern may contain "/" in it
+// so we're going to return a 2d array, where each entry is the full
+// pattern, split on '/', and then turned into a regular expression.
+// A regexp is made at the end which joins each array with an
+// escaped /, and another full one which joins each regexp with |.
+//
+// Following the lead of Bash 4.1, note that "**" only has special meaning
+// when it is the *only* thing in a path portion.  Otherwise, any series
+// of * is equivalent to a single *.  Globstar behavior is enabled by
+// default, and can be disabled by setting options.noglobstar.
+Minimatch.prototype.parse = parse
+var SUBPARSE = {}
+function parse (pattern, isSub) {
+  assertValidPattern(pattern)
+
+  var options = this.options
+
+  // shortcuts
+  if (pattern === '**') {
+    if (!options.noglobstar)
+      return GLOBSTAR
+    else
+      pattern = '*'
+  }
+  if (pattern === '') return ''
+
+  var re = ''
+  var hasMagic = !!options.nocase
+  var escaping = false
+  // ? => one single character
+  var patternListStack = []
+  var negativeLists = []
+  var stateChar
+  var inClass = false
+  var reClassStart = -1
+  var classStart = -1
+  // . and .. never match anything that doesn't start with .,
+  // even when options.dot is set.
+  var patternStart = pattern.charAt(0) === '.' ? '' // anything
+  // not (start or / followed by . or .. followed by / or end)
+  : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
+  : '(?!\\.)'
+  var self = this
+
+  function clearStateChar () {
+    if (stateChar) {
+      // we had some state-tracking character
+      // that wasn't consumed by this pass.
+      switch (stateChar) {
+        case '*':
+          re += star
+          hasMagic = true
+        break
+        case '?':
+          re += qmark
+          hasMagic = true
+        break
+        default:
+          re += '\\' + stateChar
+        break
+      }
+      self.debug('clearStateChar %j %j', stateChar, re)
+      stateChar = false
+    }
+  }
+
+  for (var i = 0, len = pattern.length, c
+    ; (i < len) && (c = pattern.charAt(i))
+    ; i++) {
+    this.debug('%s\t%s %s %j', pattern, i, re, c)
+
+    // skip over any that are escaped.
+    if (escaping && reSpecials[c]) {
+      re += '\\' + c
+      escaping = false
+      continue
+    }
+
+    switch (c) {
+      /* istanbul ignore next */
+      case '/': {
+        // completely not allowed, even escaped.
+        // Should already be path-split by now.
+        return false
+      }
+
+      case '\\':
+        clearStateChar()
+        escaping = true
+      continue
+
+      // the various stateChar values
+      // for the "extglob" stuff.
+      case '?':
+      case '*':
+      case '+':
+      case '@':
+      case '!':
+        this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)
+
+        // all of those are literals inside a class, except that
+        // the glob [!a] means [^a] in regexp
+        if (inClass) {
+          this.debug('  in class')
+          if (c === '!' && i === classStart + 1) c = '^'
+          re += c
+          continue
+        }
+
+        // if we already have a stateChar, then it means
+        // that there was something like ** or +? in there.
+        // Handle the stateChar, then proceed with this one.
+        self.debug('call clearStateChar %j', stateChar)
+        clearStateChar()
+        stateChar = c
+        // if extglob is disabled, then +(asdf|foo) isn't a thing.
+        // just clear the statechar *now*, rather than even diving into
+        // the patternList stuff.
+        if (options.noext) clearStateChar()
+      continue
+
+      case '(':
+        if (inClass) {
+          re += '('
+          continue
+        }
+
+        if (!stateChar) {
+          re += '\\('
+          continue
+        }
+
+        patternListStack.push({
+          type: stateChar,
+          start: i - 1,
+          reStart: re.length,
+          open: plTypes[stateChar].open,
+          close: plTypes[stateChar].close
+        })
+        // negation is (?:(?!js)[^/]*)
+        re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
+        this.debug('plType %j %j', stateChar, re)
+        stateChar = false
+      continue
+
+      case ')':
+        if (inClass || !patternListStack.length) {
+          re += '\\)'
+          continue
+        }
+
+        clearStateChar()
+        hasMagic = true
+        var pl = patternListStack.pop()
+        // negation is (?:(?!js)[^/]*)
+        // The others are (?:<pattern>)<type>
+        re += pl.close
+        if (pl.type === '!') {
+          negativeLists.push(pl)
+        }
+        pl.reEnd = re.length
+      continue
+
+      case '|':
+        if (inClass || !patternListStack.length || escaping) {
+          re += '\\|'
+          escaping = false
+          continue
+        }
+
+        clearStateChar()
+        re += '|'
+      continue
+
+      // these are mostly the same in regexp and glob
+      case '[':
+        // swallow any state-tracking char before the [
+        clearStateChar()
+
+        if (inClass) {
+          re += '\\' + c
+          continue
+        }
+
+        inClass = true
+        classStart = i
+        reClassStart = re.length
+        re += c
+      continue
+
+      case ']':
+        //  a right bracket shall lose its special
+        //  meaning and represent itself in
+        //  a bracket expression if it occurs
+        //  first in the list.  -- POSIX.2 2.8.3.2
+        if (i === classStart + 1 || !inClass) {
+          re += '\\' + c
+          escaping = false
+          continue
+        }
+
+        // handle the case where we left a class open.
+        // "[z-a]" is valid, equivalent to "\[z-a\]"
+        // split where the last [ was, make sure we don't have
+        // an invalid re. if so, re-walk the contents of the
+        // would-be class to re-translate any characters that
+        // were passed through as-is
+        // TODO: It would probably be faster to determine this
+        // without a try/catch and a new RegExp, but it's tricky
+        // to do safely.  For now, this is safe and works.
+        var cs = pattern.substring(classStart + 1, i)
+        try {
+          RegExp('[' + cs + ']')
+        } catch (er) {
+          // not a valid class!
+          var sp = this.parse(cs, SUBPARSE)
+          re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
+          hasMagic = hasMagic || sp[1]
+          inClass = false
+          continue
+        }
+
+        // finish up the class.
+        hasMagic = true
+        inClass = false
+        re += c
+      continue
+
+      default:
+        // swallow any state char that wasn't consumed
+        clearStateChar()
+
+        if (escaping) {
+          // no need
+          escaping = false
+        } else if (reSpecials[c]
+          && !(c === '^' && inClass)) {
+          re += '\\'
+        }
+
+        re += c
+
+    } // switch
+  } // for
+
+  // handle the case where we left a class open.
+  // "[abc" is valid, equivalent to "\[abc"
+  if (inClass) {
+    // split where the last [ was, and escape it
+    // this is a huge pita.  We now have to re-walk
+    // the contents of the would-be class to re-translate
+    // any characters that were passed through as-is
+    cs = pattern.substr(classStart + 1)
+    sp = this.parse(cs, SUBPARSE)
+    re = re.substr(0, reClassStart) + '\\[' + sp[0]
+    hasMagic = hasMagic || sp[1]
+  }
+
+  // handle the case where we had a +( thing at the *end*
+  // of the pattern.
+  // each pattern list stack adds 3 chars, and we need to go through
+  // and escape any | chars that were passed through as-is for the regexp.
+  // Go through and escape them, taking care not to double-escape any
+  // | chars that were already escaped.
+  for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
+    var tail = re.slice(pl.reStart + pl.open.length)
+    this.debug('setting tail', re, pl)
+    // maybe some even number of \, then maybe 1 \, followed by a |
+    tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
+      if (!$2) {
+        // the | isn't already escaped, so escape it.
+        $2 = '\\'
+      }
+
+      // need to escape all those slashes *again*, without escaping the
+      // one that we need for escaping the | character.  As it works out,
+      // escaping an even number of slashes can be done by simply repeating
+      // it exactly after itself.  That's why this trick works.
+      //
+      // I am sorry that you have to see this.
+      return $1 + $1 + $2 + '|'
+    })
+
+    this.debug('tail=%j\n   %s', tail, tail, pl, re)
+    var t = pl.type === '*' ? star
+      : pl.type === '?' ? qmark
+      : '\\' + pl.type
+
+    hasMagic = true
+    re = re.slice(0, pl.reStart) + t + '\\(' + tail
+  }
+
+  // handle trailing things that only matter at the very end.
+  clearStateChar()
+  if (escaping) {
+    // trailing \\
+    re += '\\\\'
+  }
+
+  // only need to apply the nodot start if the re starts with
+  // something that could conceivably capture a dot
+  var addPatternStart = false
+  switch (re.charAt(0)) {
+    case '[': case '.': case '(': addPatternStart = true
+  }
+
+  // Hack to work around lack of negative lookbehind in JS
+  // A pattern like: *.!(x).!(y|z) needs to ensure that a name
+  // like 'a.xyz.yz' doesn't match.  So, the first negative
+  // lookahead, has to look ALL the way ahead, to the end of
+  // the pattern.
+  for (var n = negativeLists.length - 1; n > -1; n--) {
+    var nl = negativeLists[n]
+
+    var nlBefore = re.slice(0, nl.reStart)
+    var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
+    var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
+    var nlAfter = re.slice(nl.reEnd)
+
+    nlLast += nlAfter
+
+    // Handle nested stuff like *(*.js|!(*.json)), where open parens
+    // mean that we should *not* include the ) in the bit that is considered
+    // "after" the negated section.
+    var openParensBefore = nlBefore.split('(').length - 1
+    var cleanAfter = nlAfter
+    for (i = 0; i < openParensBefore; i++) {
+      cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
+    }
+    nlAfter = cleanAfter
+
+    var dollar = ''
+    if (nlAfter === '' && isSub !== SUBPARSE) {
+      dollar = '$'
+    }
+    var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
+    re = newRe
+  }
+
+  // if the re is not "" at this point, then we need to make sure
+  // it doesn't match against an empty path part.
+  // Otherwise a/* will match a/, which it should not.
+  if (re !== '' && hasMagic) {
+    re = '(?=.)' + re
+  }
+
+  if (addPatternStart) {
+    re = patternStart + re
+  }
+
+  // parsing just a piece of a larger pattern.
+  if (isSub === SUBPARSE) {
+    return [re, hasMagic]
+  }
+
+  // skip the regexp for non-magical patterns
+  // unescape anything in it, though, so that it'll be
+  // an exact match against a file etc.
+  if (!hasMagic) {
+    return globUnescape(pattern)
+  }
+
+  var flags = options.nocase ? 'i' : ''
+  try {
+    var regExp = new RegExp('^' + re + '$', flags)
+  } catch (er) /* istanbul ignore next - should be impossible */ {
+    // If it was an invalid regular expression, then it can't match
+    // anything.  This trick looks for a character after the end of
+    // the string, which is of course impossible, except in multi-line
+    // mode, but it's not a /m regex.
+    return new RegExp('$.')
+  }
+
+  regExp._glob = pattern
+  regExp._src = re
+
+  return regExp
+}
+
+minimatch.makeRe = function (pattern, options) {
+  return new Minimatch(pattern, options || {}).makeRe()
+}
+
+Minimatch.prototype.makeRe = makeRe
+function makeRe () {
+  if (this.regexp || this.regexp === false) return this.regexp
+
+  // at this point, this.set is a 2d array of partial
+  // pattern strings, or "**".
+  //
+  // It's better to use .match().  This function shouldn't
+  // be used, really, but it's pretty convenient sometimes,
+  // when you just want to work with a regex.
+  var set = this.set
+
+  if (!set.length) {
+    this.regexp = false
+    return this.regexp
+  }
+  var options = this.options
+
+  var twoStar = options.noglobstar ? star
+    : options.dot ? twoStarDot
+    : twoStarNoDot
+  var flags = options.nocase ? 'i' : ''
+
+  var re = set.map(function (pattern) {
+    return pattern.map(function (p) {
+      return (p === GLOBSTAR) ? twoStar
+      : (typeof p === 'string') ? regExpEscape(p)
+      : p._src
+    }).join('\\\/')
+  }).join('|')
+
+  // must match entire pattern
+  // ending in a * or ** will make it less strict.
+  re = '^(?:' + re + ')$'
+
+  // can match anything, as long as it's not this.
+  if (this.negate) re = '^(?!' + re + ').*$'
+
+  try {
+    this.regexp = new RegExp(re, flags)
+  } catch (ex) /* istanbul ignore next - should be impossible */ {
+    this.regexp = false
+  }
+  return this.regexp
+}
+
+minimatch.match = function (list, pattern, options) {
+  options = options || {}
+  var mm = new Minimatch(pattern, options)
+  list = list.filter(function (f) {
+    return mm.match(f)
+  })
+  if (mm.options.nonull && !list.length) {
+    list.push(pattern)
+  }
+  return list
+}
+
+Minimatch.prototype.match = function match (f, partial) {
+  if (typeof partial === 'undefined') partial = this.partial
+  this.debug('match', f, this.pattern)
+  // short-circuit in the case of busted things.
+  // comments, etc.
+  if (this.comment) return false
+  if (this.empty) return f === ''
+
+  if (f === '/' && partial) return true
+
+  var options = this.options
+
+  // windows: need to use /, not \
+  if (path.sep !== '/') {
+    f = f.split(path.sep).join('/')
+  }
+
+  // treat the test path as a set of pathparts.
+  f = f.split(slashSplit)
+  this.debug(this.pattern, 'split', f)
+
+  // just ONE of the pattern sets in this.set needs to match
+  // in order for it to be valid.  If negating, then just one
+  // match means that we have failed.
+  // Either way, return on the first hit.
+
+  var set = this.set
+  this.debug(this.pattern, 'set', set)
+
+  // Find the basename of the path by looking for the last non-empty segment
+  var filename
+  var i
+  for (i = f.length - 1; i >= 0; i--) {
+    filename = f[i]
+    if (filename) break
+  }
+
+  for (i = 0; i < set.length; i++) {
+    var pattern = set[i]
+    var file = f
+    if (options.matchBase && pattern.length === 1) {
+      file = [filename]
+    }
+    var hit = this.matchOne(file, pattern, partial)
+    if (hit) {
+      if (options.flipNegate) return true
+      return !this.negate
+    }
+  }
+
+  // didn't get any hits.  this is success if it's a negative
+  // pattern, failure otherwise.
+  if (options.flipNegate) return false
+  return this.negate
+}
+
+// set partial to true to test if, for example,
+// "/a/b" matches the start of "/*/b/*/d"
+// Partial means, if you run out of file before you run
+// out of pattern, then that's fine, as long as all
+// the parts match.
+Minimatch.prototype.matchOne = function (file, pattern, partial) {
+  var options = this.options
+
+  this.debug('matchOne',
+    { 'this': this, file: file, pattern: pattern })
+
+  this.debug('matchOne', file.length, pattern.length)
+
+  for (var fi = 0,
+      pi = 0,
+      fl = file.length,
+      pl = pattern.length
+      ; (fi < fl) && (pi < pl)
+      ; fi++, pi++) {
+    this.debug('matchOne loop')
+    var p = pattern[pi]
+    var f = file[fi]
+
+    this.debug(pattern, p, f)
+
+    // should be impossible.
+    // some invalid regexp stuff in the set.
+    /* istanbul ignore if */
+    if (p === false) return false
+
+    if (p === GLOBSTAR) {
+      this.debug('GLOBSTAR', [pattern, p, f])
+
+      // "**"
+      // a/**/b/**/c would match the following:
+      // a/b/x/y/z/c
+      // a/x/y/z/b/c
+      // a/b/x/b/x/c
+      // a/b/c
+      // To do this, take the rest of the pattern after
+      // the **, and see if it would match the file remainder.
+      // If so, return success.
+      // If not, the ** "swallows" a segment, and try again.
+      // This is recursively awful.
+      //
+      // a/**/b/**/c matching a/b/x/y/z/c
+      // - a matches a
+      // - doublestar
+      //   - matchOne(b/x/y/z/c, b/**/c)
+      //     - b matches b
+      //     - doublestar
+      //       - matchOne(x/y/z/c, c) -> no
+      //       - matchOne(y/z/c, c) -> no
+      //       - matchOne(z/c, c) -> no
+      //       - matchOne(c, c) yes, hit
+      var fr = fi
+      var pr = pi + 1
+      if (pr === pl) {
+        this.debug('** at the end')
+        // a ** at the end will just swallow the rest.
+        // We have found a match.
+        // however, it will not swallow /.x, unless
+        // options.dot is set.
+        // . and .. are *never* matched by **, for explosively
+        // exponential reasons.
+        for (; fi < fl; fi++) {
+          if (file[fi] === '.' || file[fi] === '..' ||
+            (!options.dot && file[fi].charAt(0) === '.')) return false
+        }
+        return true
+      }
+
+      // ok, let's see if we can swallow whatever we can.
+      while (fr < fl) {
+        var swallowee = file[fr]
+
+        this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)
+
+        // XXX remove this slice.  Just pass the start index.
+        if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
+          this.debug('globstar found match!', fr, fl, swallowee)
+          // found a match.
+          return true
+        } else {
+          // can't swallow "." or ".." ever.
+          // can only swallow ".foo" when explicitly asked.
+          if (swallowee === '.' || swallowee === '..' ||
+            (!options.dot && swallowee.charAt(0) === '.')) {
+            this.debug('dot detected!', file, fr, pattern, pr)
+            break
+          }
+
+          // ** swallows a segment, and continue.
+          this.debug('globstar swallow a segment, and continue')
+          fr++
+        }
+      }
+
+      // no match was found.
+      // However, in partial mode, we can't say this is necessarily over.
+      // If there's more *pattern* left, then
+      /* istanbul ignore if */
+      if (partial) {
+        // ran out of file
+        this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
+        if (fr === fl) return true
+      }
+      return false
+    }
+
+    // something other than **
+    // non-magic patterns just have to match exactly
+    // patterns with magic have been turned into regexps.
+    var hit
+    if (typeof p === 'string') {
+      hit = f === p
+      this.debug('string match', p, f, hit)
+    } else {
+      hit = f.match(p)
+      this.debug('pattern match', p, f, hit)
+    }
+
+    if (!hit) return false
+  }
+
+  // Note: ending in / means that we'll get a final ""
+  // at the end of the pattern.  This can only match a
+  // corresponding "" at the end of the file.
+  // If the file ends in /, then it can only match a
+  // a pattern that ends in /, unless the pattern just
+  // doesn't have any more for it. But, a/b/ should *not*
+  // match "a/b/*", even though "" matches against the
+  // [^/]*? pattern, except in partial mode, where it might
+  // simply not be reached yet.
+  // However, a/b/ should still satisfy a/*
+
+  // now either we fell off the end of the pattern, or we're done.
+  if (fi === fl && pi === pl) {
+    // ran out of pattern and filename at the same time.
+    // an exact hit!
+    return true
+  } else if (fi === fl) {
+    // ran out of file, but still had pattern left.
+    // this is ok if we're doing the match as part of
+    // a glob fs traversal.
+    return partial
+  } else /* istanbul ignore else */ if (pi === pl) {
+    // ran out of pattern, still have file left.
+    // this is only acceptable if we're on the very last
+    // empty segment of a file with a trailing slash.
+    // a/* should match a/b/
+    return (fi === fl - 1) && (file[fi] === '')
+  }
+
+  // should be unreachable.
+  /* istanbul ignore next */
+  throw new Error('wtf?')
+}
+
+// replace stuff like \* with *
+function globUnescape (s) {
+  return s.replace(/\\(.)/g, '$1')
+}
+
+function regExpEscape (s) {
+  return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
+}

frontend/node_modules/@humanwhocodes/config-array/node_modules/minimatch/package.json

@@ -0,0 +1,33 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me)",
+  "name": "minimatch",
+  "description": "a glob matcher in javascript",
+  "version": "3.1.2",
+  "publishConfig": {
+    "tag": "v3-legacy"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/isaacs/minimatch.git"
+  },
+  "main": "minimatch.js",
+  "scripts": {
+    "test": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "postpublish": "git push origin --all; git push origin --tags"
+  },
+  "engines": {
+    "node": "*"
+  },
+  "dependencies": {
+    "brace-expansion": "^1.1.7"
+  },
+  "devDependencies": {
+    "tap": "^15.1.6"
+  },
+  "license": "ISC",
+  "files": [
+    "minimatch.js"
+  ]
+}

frontend/node_modules/@humanwhocodes/config-array/package.json

@@ -0,0 +1,63 @@
+{
+  "name": "@humanwhocodes/config-array",
+  "version": "0.13.0",
+  "description": "Glob-based configuration matching.",
+  "author": "Nicholas C. Zakas",
+  "main": "api.js",
+  "files": [
+    "api.js",
+    "LICENSE",
+    "README.md"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/humanwhocodes/config-array.git"
+  },
+  "bugs": {
+    "url": "https://github.com/humanwhocodes/config-array/issues"
+  },
+  "homepage": "https://github.com/humanwhocodes/config-array#readme",
+  "scripts": {
+    "build": "rollup -c",
+    "format": "nitpik",
+    "lint": "eslint *.config.js src/*.js tests/*.js",
+    "lint:fix": "eslint --fix *.config.js src/*.js tests/*.js",
+    "prepublish": "npm run build",
+    "test:coverage": "nyc --include src/*.js npm run test",
+    "test": "mocha -r esm tests/ --recursive"
+  },
+  "gitHooks": {
+    "pre-commit": "lint-staged"
+  },
+  "lint-staged": {
+    "*.js": [
+      "eslint --fix --ignore-pattern '!.eslintrc.js'"
+    ]
+  },
+  "keywords": [
+    "configuration",
+    "configarray",
+    "config file"
+  ],
+  "license": "Apache-2.0",
+  "engines": {
+    "node": ">=10.10.0"
+  },
+  "dependencies": {
+    "@humanwhocodes/object-schema": "^2.0.3",
+    "debug": "^4.3.1",
+    "minimatch": "^3.0.5"
+  },
+  "devDependencies": {
+    "@nitpik/javascript": "0.4.0",
+    "@nitpik/node": "0.0.5",
+    "chai": "4.3.10",
+    "eslint": "8.52.0",
+    "esm": "3.2.25",
+    "lint-staged": "15.0.2",
+    "mocha": "6.2.3",
+    "nyc": "15.1.0",
+    "rollup": "3.28.1",
+    "yorkie": "2.0.0"
+  }
+}

frontend/node_modules/@humanwhocodes/module-importer/CHANGELOG.md

@@ -0,0 +1,15 @@
+# Changelog
+
+## [1.0.1](https://github.com/humanwhocodes/module-importer/compare/v1.0.0...v1.0.1) (2022-08-18)
+
+
+### Bug Fixes
+
+* Ensure CommonJS mode works correctly. ([cf54a0b](https://github.com/humanwhocodes/module-importer/commit/cf54a0b998085066fbe1776dd0b4cacd808cc192)), closes [#6](https://github.com/humanwhocodes/module-importer/issues/6)
+
+## 1.0.0 (2022-08-17)
+
+
+### Features
+
+* Implement ModuleImporter ([3ce4e82](https://www.github.com/humanwhocodes/module-importer/commit/3ce4e820c30c114e787bfed00a0966ac4772f563))

frontend/node_modules/@humanwhocodes/module-importer/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+
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frontend/node_modules/@humanwhocodes/module-importer/README.md

@@ -0,0 +1,80 @@
+# ModuleImporter
+
+by [Nicholas C. Zakas](https://humanwhocodes.com)
+
+If you find this useful, please consider supporting my work with a [donation](https://humanwhocodes.com/donate).
+
+## Description
+
+A utility for seamlessly importing modules in Node.js regardless if they are CommonJS or ESM format. Under the hood, this uses `import()` and relies on Node.js's CommonJS compatibility to work correctly. This ensures that the correct locations and formats are used for CommonJS so you can call one method and not worry about any compatibility issues.
+
+The problem with the default `import()` is that it always resolves relative to the file location in which it is called. If you want to resolve from a different location, you need to jump through a few hoops to achieve that. This package makes it easy to both resolve and import modules from any directory.
+
+## Usage
+
+### Node.js
+
+Install using [npm][npm] or [yarn][yarn]:
+
+```
+npm install @humanwhocodes/module-importer
+
+# or
+
+yarn add @humanwhocodes/module-importer
+```
+
+Import into your Node.js project:
+
+```js
+// CommonJS
+const { ModuleImporter } = require("@humanwhocodes/module-importer");
+
+// ESM
+import { ModuleImporter } from "@humanwhocodes/module-importer";
+```
+
+### Bun
+
+Install using this command:
+
+```
+bun add @humanwhocodes/module-importer
+```
+
+Import into your Bun project:
+
+```js
+import { ModuleImporter } from "@humanwhocodes/module-importer";
+```
+
+## API
+
+After importing, create a new instance of `ModuleImporter` to start emitting events:
+
+```js
+// cwd can be omitted to use process.cwd()
+const importer = new ModuleImporter(cwd);
+
+// you can resolve the location of any package
+const location = importer.resolve("./some-file.cjs");
+
+// you can also import directly
+const module = importer.import("./some-file.cjs");
+```
+
+For both `resolve()` and `import()`, you can pass in package names and filenames.
+
+## Developer Setup
+
+1. Fork the repository
+2. Clone your fork
+3. Run `npm install` to setup dependencies
+4. Run `npm test` to run tests
+
+## License
+
+Apache 2.0
+
+[npm]: https://npmjs.com/
+[yarn]: https://yarnpkg.com/

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.cjs

@@ -0,0 +1,22 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var module$1 = require('module');
+var url = require('url');
+var path = require('path');
+
+/**
+ * @fileoverview Universal module importer
+ */
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const __filename$1 = url.fileURLToPath((typeof document === 'undefined' ? new (require('u' + 'rl').URL)('file:' + __filename).href : (document.currentScript && document.currentScript.src || new URL('module-importer.cjs', document.baseURI).href)));
+const __dirname$1 = path.dirname(__filename$1);
+const require$1 = module$1.createRequire(__dirname$1 + "/");
+const { ModuleImporter } = require$1("./module-importer.cjs");
+
+exports.ModuleImporter = ModuleImporter;

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.d.cts

@@ -0,0 +1,27 @@
+export class ModuleImporter {
+    /**
+     * Creates a new instance.
+     * @param {string} [cwd] The current working directory to resolve from.
+     */
+    constructor(cwd?: string);
+    /**
+     * The base directory from which paths should be resolved.
+     * @type {string}
+     */
+    cwd: string;
+    /**
+     * Resolves a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {string|undefined} The location of the import.
+     * @throws {Error} If specifier cannot be located.
+     */
+    resolve(specifier: string): string | undefined;
+    /**
+     * Imports a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {Promise<object>} The module's object.
+     */
+    import(specifier: string): Promise<object>;
+}

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.d.ts

@@ -0,0 +1,2 @@
+export { ModuleImporter };
+import { ModuleImporter } from "./module-importer.cjs";

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.js

@@ -0,0 +1,18 @@
+import { createRequire } from 'module';
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+
+/**
+ * @fileoverview Universal module importer
+ */
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const require = createRequire(__dirname + "/");
+const { ModuleImporter } = require("./module-importer.cjs");
+
+export { ModuleImporter };

frontend/node_modules/@humanwhocodes/module-importer/package.json

@@ -0,0 +1,65 @@
+{
+  "name": "@humanwhocodes/module-importer",
+  "version": "1.0.1",
+  "description": "Universal module importer for Node.js",
+  "main": "src/module-importer.cjs",
+  "module": "src/module-importer.js",
+  "type": "module",
+  "types": "dist/module-importer.d.ts",
+  "exports": {
+    "require": "./src/module-importer.cjs",
+    "import": "./src/module-importer.js"
+  },
+  "files": [
+    "dist",
+    "src"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "gitHooks": {
+    "pre-commit": "lint-staged"
+  },
+  "lint-staged": {
+    "*.js": [
+      "eslint --fix"
+    ]
+  },
+  "funding": {
+    "type": "github",
+    "url": "https://github.com/sponsors/nzakas"
+  },
+  "scripts": {
+    "build": "rollup -c && tsc",
+    "prepare": "npm run build",
+    "lint": "eslint src/ tests/",
+    "test:unit": "c8 mocha tests/module-importer.test.js",
+    "test:build": "node tests/pkg.test.cjs && node tests/pkg.test.mjs",
+    "test": "npm run test:unit && npm run test:build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/humanwhocodes/module-importer.git"
+  },
+  "keywords": [
+    "modules",
+    "esm",
+    "commonjs"
+  ],
+  "engines": {
+    "node": ">=12.22"
+  },
+  "author": "Nicholas C. Zaks",
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/node": "^18.7.6",
+    "c8": "7.12.0",
+    "chai": "4.3.6",
+    "eslint": "8.22.0",
+    "lint-staged": "13.0.3",
+    "mocha": "9.2.2",
+    "rollup": "2.78.0",
+    "typescript": "4.7.4",
+    "yorkie": "2.0.0"
+  }
+}

frontend/node_modules/@humanwhocodes/module-importer/src/module-importer.cjs

@@ -0,0 +1,81 @@
+/**
+ * @fileoverview Universal module importer
+ */
+
+//-----------------------------------------------------------------------------
+// Imports
+//-----------------------------------------------------------------------------
+
+const { createRequire } = require("module");
+const { pathToFileURL }  = require("url");
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const SLASHES = new Set(["/", "\\"]);
+
+/**
+ * Normalizes directories to have a trailing slash.
+ * Resolve is pretty finicky -- if the directory name doesn't have
+ * a trailing slash then it tries to look in the parent directory.
+ * i.e., if the directory is "/usr/nzakas/foo" it will start the 
+ * search in /usr/nzakas. However, if the directory is "/user/nzakas/foo/",
+ * then it will start the search in /user/nzakas/foo.
+ * @param {string} directory The directory to check. 
+ * @returns {string} The normalized directory.
+ */
+function normalizeDirectory(directory) {
+    if (!SLASHES.has(directory[directory.length-1])) {
+        return directory + "/";
+    }
+
+    return directory;
+}
+
+//-----------------------------------------------------------------------------
+// Exports
+//-----------------------------------------------------------------------------
+
+/**
+ * Class for importing both CommonJS and ESM modules in Node.js.
+ */
+exports.ModuleImporter = class ModuleImporter {
+
+    /**
+     * Creates a new instance.
+     * @param {string} [cwd] The current working directory to resolve from. 
+     */
+    constructor(cwd = process.cwd()) {
+
+        /**
+         * The base directory from which paths should be resolved.
+         * @type {string}
+         */
+        this.cwd = normalizeDirectory(cwd);
+    }
+
+    /**
+     * Resolves a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {string|undefined} The location of the import.
+     * @throws {Error} If specifier cannot be located.
+     */
+    resolve(specifier) {
+        const require = createRequire(this.cwd);
+        return require.resolve(specifier);
+    }
+
+    /**
+     * Imports a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {Promise<object>} The module's object.
+     */
+    import(specifier) {
+        const location = this.resolve(specifier);
+        return import(pathToFileURL(location).href);
+    }
+
+}

frontend/node_modules/@humanwhocodes/module-importer/src/module-importer.js

@@ -0,0 +1,22 @@
+/**
+ * @fileoverview Universal module importer
+ */
+
+//-----------------------------------------------------------------------------
+// Imports
+//-----------------------------------------------------------------------------
+
+import { createRequire } from "module";
+import { fileURLToPath } from "url";
+import { dirname } from "path";
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const require = createRequire(__dirname + "/");
+const { ModuleImporter } = require("./module-importer.cjs");
+
+export { ModuleImporter };

frontend/node_modules/@humanwhocodes/object-schema/CHANGELOG.md

@@ -0,0 +1,40 @@
+# Changelog
+
+## [2.0.3](https://github.com/humanwhocodes/object-schema/compare/v2.0.2...v2.0.3) (2024-04-01)
+
+
+### Bug Fixes
+
+* Ensure test files are not including in package ([6eeb32c](https://github.com/humanwhocodes/object-schema/commit/6eeb32cc76a3e37d76b2990bd603d72061c816e0)), closes [#19](https://github.com/humanwhocodes/object-schema/issues/19)
+
+## [2.0.2](https://github.com/humanwhocodes/object-schema/compare/v2.0.1...v2.0.2) (2024-01-10)
+
+
+### Bug Fixes
+
+* WrapperError should be an actual error ([2523f01](https://github.com/humanwhocodes/object-schema/commit/2523f014168167e5a40bb63e0cc03231b2c0f1bf))
+
+## [2.0.1](https://github.com/humanwhocodes/object-schema/compare/v2.0.0...v2.0.1) (2023-10-20)
+
+
+### Bug Fixes
+
+* Custom properties should be available on thrown errors ([6ca80b0](https://github.com/humanwhocodes/object-schema/commit/6ca80b001a4ffb678b9b5544fc53322117374376))
+
+## [2.0.0](https://github.com/humanwhocodes/object-schema/compare/v1.2.1...v2.0.0) (2023-10-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* Throw custom errors instead of generics.
+
+### Features
+
+* Throw custom errors instead of generics. ([c6c01d7](https://github.com/humanwhocodes/object-schema/commit/c6c01d71eb354bf7b1fb3e883c40f7bd9b61647c))
+
+### [1.2.1](https://www.github.com/humanwhocodes/object-schema/compare/v1.2.0...v1.2.1) (2021-11-02)
+
+
+### Bug Fixes
+
+* Never return original object from individual config ([5463c5c](https://www.github.com/humanwhocodes/object-schema/commit/5463c5c6d2cb35a7b7948dffc37c899a41d1775f))

frontend/node_modules/@humanwhocodes/object-schema/LICENSE

@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2019, Human Who Codes
+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 copyright holder 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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/@humanwhocodes/object-schema/README.md

@@ -0,0 +1,234 @@
+# JavaScript ObjectSchema Package
+
+by [Nicholas C. Zakas](https://humanwhocodes.com)
+
+If you find this useful, please consider supporting my work with a [donation](https://humanwhocodes.com/donate).
+
+## Overview
+
+A JavaScript object merge/validation utility where you can define a different merge and validation strategy for each key. This is helpful when you need to validate complex data structures and then merge them in a way that is more complex than `Object.assign()`.
+
+## Installation
+
+You can install using either npm:
+
+```
+npm install @humanwhocodes/object-schema
+```
+
+Or Yarn:
+
+```
+yarn add @humanwhocodes/object-schema
+```
+
+## Usage
+
+Use CommonJS to get access to the `ObjectSchema` constructor:
+
+```js
+const { ObjectSchema } = require("@humanwhocodes/object-schema");
+
+const schema = new ObjectSchema({
+
+    // define a definition for the "downloads" key
+    downloads: {
+        required: true,
+        merge(value1, value2) {
+            return value1 + value2;
+        },
+        validate(value) {
+            if (typeof value !== "number") {
+                throw new Error("Expected downloads to be a number.");
+            }
+        }
+    },
+
+    // define a strategy for the "versions" key
+    version: {
+        required: true,
+        merge(value1, value2) {
+            return value1.concat(value2);
+        },
+        validate(value) {
+            if (!Array.isArray(value)) {
+                throw new Error("Expected versions to be an array.");
+            }
+        }
+    }
+});
+
+const record1 = {
+    downloads: 25,
+    versions: [
+        "v1.0.0",
+        "v1.1.0",
+        "v1.2.0"
+    ]
+};
+
+const record2 = {
+    downloads: 125,
+    versions: [
+        "v2.0.0",
+        "v2.1.0",
+        "v3.0.0"
+    ]
+};
+
+// make sure the records are valid
+schema.validate(record1);
+schema.validate(record2);
+
+// merge together (schema.merge() accepts any number of objects)
+const result = schema.merge(record1, record2);
+
+// result looks like this:
+
+const result = {
+    downloads: 75,
+    versions: [
+        "v1.0.0",
+        "v1.1.0",
+        "v1.2.0",
+        "v2.0.0",
+        "v2.1.0",
+        "v3.0.0"
+    ]
+};
+```
+
+## Tips and Tricks
+
+### Named merge strategies
+
+Instead of specifying a `merge()` method, you can specify one of the following strings to use a default merge strategy:
+
+* `"assign"` - use `Object.assign()` to merge the two values into one object.
+* `"overwrite"` - the second value always replaces the first.
+* `"replace"` - the second value replaces the first if the second is not `undefined`.
+
+For example:
+
+```js
+const schema = new ObjectSchema({
+    name: {
+        merge: "replace",
+        validate() {}
+    }
+});
+```
+
+### Named validation strategies
+
+Instead of specifying a `validate()` method, you can specify one of the following strings to use a default validation strategy:
+
+* `"array"` - value must be an array.
+* `"boolean"` - value must be a boolean.
+* `"number"` - value must be a number.
+* `"object"` - value must be an object.
+* `"object?"` - value must be an object or null.
+* `"string"` - value must be a string.
+* `"string!"` - value must be a non-empty string.
+
+For example:
+
+```js
+const schema = new ObjectSchema({
+    name: {
+        merge: "replace",
+        validate: "string"
+    }
+});
+```
+
+### Subschemas
+
+If you are defining a key that is, itself, an object, you can simplify the process by using a subschema. Instead of defining `merge()` and `validate()`, assign a `schema` key that contains a schema definition, like this:
+
+```js
+const schema = new ObjectSchema({
+    name: {
+        schema: {
+            first: {
+                merge: "replace",
+                validate: "string"
+            },
+            last: {
+                merge: "replace",
+                validate: "string"
+            }
+        }
+    }
+});
+
+schema.validate({
+    name: {
+        first: "n",
+        last: "z"
+    }
+});
+```
+
+### Remove Keys During Merge
+
+If the merge strategy for a key returns `undefined`, then the key will not appear in the final object. For example:
+
+```js
+const schema = new ObjectSchema({
+    date: {
+        merge() {
+            return undefined;
+        },
+        validate(value) {
+            Date.parse(value);  // throws an error when invalid
+        }
+    }
+});
+
+const object1 = { date: "5/5/2005" };
+const object2 = { date: "6/6/2006" };
+
+const result = schema.merge(object1, object2);
+
+console.log("date" in result);  // false
+```
+
+### Requiring Another Key Be Present
+
+If you'd like the presence of one key to require the presence of another key, you can use the `requires` property to specify an array of other properties that any key requires. For example:
+
+```js
+const schema = new ObjectSchema();
+
+const schema = new ObjectSchema({
+    date: {
+        merge() {
+            return undefined;
+        },
+        validate(value) {
+            Date.parse(value);  // throws an error when invalid
+        }
+    },
+    time: {
+        requires: ["date"],
+        merge(first, second) {
+            return second;
+        },
+        validate(value) {
+            // ...
+        }
+    }
+});
+
+// throws error: Key "time" requires keys "date"
+schema.validate({
+    time: "13:45"
+});
+```
+
+In this example, even though `date` is an optional key, it is required to be present whenever `time` is present.
+
+## License
+
+BSD 3-Clause

frontend/node_modules/@humanwhocodes/object-schema/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "@humanwhocodes/object-schema",
+  "version": "2.0.3",
+  "description": "An object schema merger/validator",
+  "main": "src/index.js",
+  "files": [
+    "src",
+    "LICENSE",
+    "README.md"
+  ],
+  "directories": {
+    "test": "tests"
+  },
+  "scripts": {
+    "test": "mocha tests/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/humanwhocodes/object-schema.git"
+  },
+  "keywords": [
+    "object",
+    "validation",
+    "schema",
+    "merge"
+  ],
+  "author": "Nicholas C. Zakas",
+  "license": "BSD-3-Clause",
+  "bugs": {
+    "url": "https://github.com/humanwhocodes/object-schema/issues"
+  },
+  "homepage": "https://github.com/humanwhocodes/object-schema#readme",
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "eslint": "^5.13.0",
+    "mocha": "^5.2.0"
+  }
+}

frontend/node_modules/@humanwhocodes/object-schema/src/index.js

@@ -0,0 +1,7 @@
+/**
+ * @filedescription Object Schema Package
+ */
+
+exports.ObjectSchema = require("./object-schema").ObjectSchema;
+exports.MergeStrategy = require("./merge-strategy").MergeStrategy;
+exports.ValidationStrategy = require("./validation-strategy").ValidationStrategy;

frontend/node_modules/@humanwhocodes/object-schema/src/merge-strategy.js

@@ -0,0 +1,53 @@
+/**
+ * @filedescription Merge Strategy
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Class
+//-----------------------------------------------------------------------------
+
+/**
+ * Container class for several different merge strategies.
+ */
+class MergeStrategy {
+
+    /**
+     * Merges two keys by overwriting the first with the second.
+     * @param {*} value1 The value from the first object key. 
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} The second value.
+     */
+    static overwrite(value1, value2) {
+        return value2;
+    }
+
+    /**
+     * Merges two keys by replacing the first with the second only if the
+     * second is defined.
+     * @param {*} value1 The value from the first object key. 
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} The second value if it is defined.
+     */
+    static replace(value1, value2) {
+        if (typeof value2 !== "undefined") {
+            return value2;
+        }
+
+        return value1;
+    }
+
+    /**
+     * Merges two properties by assigning properties from the second to the first.
+     * @param {*} value1 The value from the first object key.
+     * @param {*} value2 The value from the second object key.
+     * @returns {*} A new object containing properties from both value1 and
+     *      value2.
+     */
+    static assign(value1, value2) {
+        return Object.assign({}, value1, value2);
+    }
+}
+
+exports.MergeStrategy = MergeStrategy;

frontend/node_modules/@humanwhocodes/object-schema/src/object-schema.js

@@ -0,0 +1,301 @@
+/**
+ * @filedescription Object Schema
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Requirements
+//-----------------------------------------------------------------------------
+
+const { MergeStrategy } = require("./merge-strategy");
+const { ValidationStrategy } = require("./validation-strategy");
+
+//-----------------------------------------------------------------------------
+// Private
+//-----------------------------------------------------------------------------
+
+const strategies = Symbol("strategies");
+const requiredKeys = Symbol("requiredKeys");
+
+/**
+ * Validates a schema strategy.
+ * @param {string} name The name of the key this strategy is for.
+ * @param {Object} strategy The strategy for the object key.
+ * @param {boolean} [strategy.required=true] Whether the key is required.
+ * @param {string[]} [strategy.requires] Other keys that are required when
+ *      this key is present.
+ * @param {Function} strategy.merge A method to call when merging two objects
+ *      with the same key.
+ * @param {Function} strategy.validate A method to call when validating an
+ *      object with the key.
+ * @returns {void}
+ * @throws {Error} When the strategy is missing a name.
+ * @throws {Error} When the strategy is missing a merge() method.
+ * @throws {Error} When the strategy is missing a validate() method.
+ */
+function validateDefinition(name, strategy) {
+
+    let hasSchema = false;
+    if (strategy.schema) {
+        if (typeof strategy.schema === "object") {
+            hasSchema = true;
+        } else {
+            throw new TypeError("Schema must be an object.");
+        }
+    }
+
+    if (typeof strategy.merge === "string") {
+        if (!(strategy.merge in MergeStrategy)) {
+            throw new TypeError(`Definition for key "${name}" missing valid merge strategy.`);
+        }
+    } else if (!hasSchema && typeof strategy.merge !== "function") {
+        throw new TypeError(`Definition for key "${name}" must have a merge property.`);
+    }
+
+    if (typeof strategy.validate === "string") {
+        if (!(strategy.validate in ValidationStrategy)) {
+            throw new TypeError(`Definition for key "${name}" missing valid validation strategy.`);
+        }
+    } else if (!hasSchema && typeof strategy.validate !== "function") {
+        throw new TypeError(`Definition for key "${name}" must have a validate() method.`);
+    }
+}
+
+//-----------------------------------------------------------------------------
+// Errors
+//-----------------------------------------------------------------------------
+
+/**
+ * Error when an unexpected key is found.
+ */
+class UnexpectedKeyError extends Error {
+
+    /**
+     * Creates a new instance.
+     * @param {string} key The key that was unexpected. 
+     */
+    constructor(key) {
+        super(`Unexpected key "${key}" found.`);
+    }
+}
+
+/**
+ * Error when a required key is missing.
+ */
+class MissingKeyError extends Error {
+
+    /**
+     * Creates a new instance.
+     * @param {string} key The key that was missing. 
+     */
+    constructor(key) {
+        super(`Missing required key "${key}".`);
+    }
+}
+
+/**
+ * Error when a key requires other keys that are missing.
+ */
+class MissingDependentKeysError extends Error {
+
+    /**
+     * Creates a new instance.
+     * @param {string} key The key that was unexpected.
+     * @param {Array<string>} requiredKeys The keys that are required.
+     */
+    constructor(key, requiredKeys) {
+        super(`Key "${key}" requires keys "${requiredKeys.join("\", \"")}".`);
+    }
+}
+
+/**
+ * Wrapper error for errors occuring during a merge or validate operation.
+ */
+class WrapperError extends Error {
+
+    /**
+     * Creates a new instance.
+     * @param {string} key The object key causing the error. 
+     * @param {Error} source The source error. 
+     */
+    constructor(key, source) {
+        super(`Key "${key}": ${source.message}`, { cause: source });
+
+        // copy over custom properties that aren't represented
+        for (const key of Object.keys(source)) {
+            if (!(key in this)) {
+                this[key] = source[key];
+            }
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+// Main
+//-----------------------------------------------------------------------------
+
+/**
+ * Represents an object validation/merging schema.
+ */
+class ObjectSchema {
+
+    /**
+     * Creates a new instance.
+     */
+    constructor(definitions) {
+
+        if (!definitions) {
+            throw new Error("Schema definitions missing.");
+        }
+
+        /**
+         * Track all strategies in the schema by key.
+         * @type {Map}
+         * @property strategies
+         */
+        this[strategies] = new Map();
+
+        /**
+         * Separately track any keys that are required for faster validation.
+         * @type {Map}
+         * @property requiredKeys
+         */
+        this[requiredKeys] = new Map();
+
+        // add in all strategies
+        for (const key of Object.keys(definitions)) {
+            validateDefinition(key, definitions[key]);
+
+            // normalize merge and validate methods if subschema is present
+            if (typeof definitions[key].schema === "object") {
+                const schema = new ObjectSchema(definitions[key].schema);
+                definitions[key] = {
+                    ...definitions[key],
+                    merge(first = {}, second = {}) {
+                        return schema.merge(first, second);
+                    },
+                    validate(value) {
+                        ValidationStrategy.object(value);
+                        schema.validate(value);
+                    }
+                };
+            }
+
+            // normalize the merge method in case there's a string
+            if (typeof definitions[key].merge === "string") {
+                definitions[key] = {
+                    ...definitions[key],
+                    merge: MergeStrategy[definitions[key].merge]
+                };
+            };
+
+            // normalize the validate method in case there's a string
+            if (typeof definitions[key].validate === "string") {
+                definitions[key] = {
+                    ...definitions[key],
+                    validate: ValidationStrategy[definitions[key].validate]
+                };
+            };
+
+            this[strategies].set(key, definitions[key]);
+
+            if (definitions[key].required) {
+                this[requiredKeys].set(key, definitions[key]);
+            }
+        }
+    }
+
+    /**
+     * Determines if a strategy has been registered for the given object key.
+     * @param {string} key The object key to find a strategy for.
+     * @returns {boolean} True if the key has a strategy registered, false if not. 
+     */
+    hasKey(key) {
+        return this[strategies].has(key);
+    }
+
+    /**
+     * Merges objects together to create a new object comprised of the keys
+     * of the all objects. Keys are merged based on the each key's merge
+     * strategy.
+     * @param {...Object} objects The objects to merge.
+     * @returns {Object} A new object with a mix of all objects' keys.
+     * @throws {Error} If any object is invalid.
+     */
+    merge(...objects) {
+
+        // double check arguments
+        if (objects.length < 2) {
+            throw new TypeError("merge() requires at least two arguments.");
+        }
+
+        if (objects.some(object => (object == null || typeof object !== "object"))) {
+            throw new TypeError("All arguments must be objects.");
+        }
+
+        return objects.reduce((result, object) => {
+            
+            this.validate(object);
+            
+            for (const [key, strategy] of this[strategies]) {
+                try {
+                    if (key in result || key in object) {
+                        const value = strategy.merge.call(this, result[key], object[key]);
+                        if (value !== undefined) {
+                            result[key] = value;
+                        }
+                    }
+                } catch (ex) {
+                    throw new WrapperError(key, ex);
+                }
+            }
+            return result;
+        }, {});
+    }
+
+    /**
+     * Validates an object's keys based on the validate strategy for each key.
+     * @param {Object} object The object to validate.
+     * @returns {void}
+     * @throws {Error} When the object is invalid. 
+     */
+    validate(object) {
+
+        // check existing keys first
+        for (const key of Object.keys(object)) {
+
+            // check to see if the key is defined
+            if (!this.hasKey(key)) {
+                throw new UnexpectedKeyError(key);
+            }
+
+            // validate existing keys
+            const strategy = this[strategies].get(key);
+
+            // first check to see if any other keys are required
+            if (Array.isArray(strategy.requires)) {
+                if (!strategy.requires.every(otherKey => otherKey in object)) {
+                    throw new MissingDependentKeysError(key, strategy.requires);
+                }
+            }
+
+            // now apply remaining validation strategy
+            try {
+                strategy.validate.call(strategy, object[key]);
+            } catch (ex) {
+                throw new WrapperError(key, ex);
+            }
+        }
+
+        // ensure required keys aren't missing
+        for (const [key] of this[requiredKeys]) {
+            if (!(key in object)) {
+                throw new MissingKeyError(key);
+            }
+        }
+
+    }
+}
+
+exports.ObjectSchema = ObjectSchema;

frontend/node_modules/@humanwhocodes/object-schema/src/validation-strategy.js

@@ -0,0 +1,102 @@
+/**
+ * @filedescription Validation Strategy
+ */
+
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Class
+//-----------------------------------------------------------------------------
+
+/**
+ * Container class for several different validation strategies.
+ */
+class ValidationStrategy {
+
+    /**
+     * Validates that a value is an array.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static array(value) {
+        if (!Array.isArray(value)) {
+            throw new TypeError("Expected an array.");
+        }
+    }
+
+    /**
+     * Validates that a value is a boolean.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static boolean(value) {
+        if (typeof value !== "boolean") {
+            throw new TypeError("Expected a Boolean.");
+        }
+    }
+
+    /**
+     * Validates that a value is a number.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static number(value) {
+        if (typeof value !== "number") {
+            throw new TypeError("Expected a number.");
+        }
+    }
+
+    /**
+     * Validates that a value is a object.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static object(value) {
+        if (!value || typeof value !== "object") {
+            throw new TypeError("Expected an object.");
+        }
+    }
+
+    /**
+     * Validates that a value is a object or null.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static "object?"(value) {
+        if (typeof value !== "object") {
+            throw new TypeError("Expected an object or null.");
+        }
+    }
+
+    /**
+     * Validates that a value is a string.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static string(value) {
+        if (typeof value !== "string") {
+            throw new TypeError("Expected a string.");
+        }
+    }
+
+    /**
+     * Validates that a value is a non-empty string.
+     * @param {*} value The value to validate.
+     * @returns {void}
+     * @throws {TypeError} If the value is invalid. 
+     */
+    static "string!"(value) {
+        if (typeof value !== "string" || value.length === 0) {
+            throw new TypeError("Expected a non-empty string.");
+        }
+    }
+
+}
+
+exports.ValidationStrategy = ValidationStrategy;