Index: frontend/node_modules/proxy-from-env/LICENSE
===================================================================
--- frontend/node_modules/proxy-from-env/LICENSE	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/LICENSE	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,20 @@
+The MIT License
+
+Copyright (C) 2016-2018 Rob Wu <rob@robwu.nl>
+
+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.
Index: frontend/node_modules/proxy-from-env/README.md
===================================================================
--- frontend/node_modules/proxy-from-env/README.md	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/README.md	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,163 @@
+# proxy-from-env
+
+![Build Status](https://github.com/Rob--W/proxy-from-env/actions/workflows/run-tests.yaml/badge.svg?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/Rob--W/proxy-from-env/badge.svg?branch=master)](https://coveralls.io/github/Rob--W/proxy-from-env?branch=master)
+
+`proxy-from-env` is a Node.js package that exports a function (`getProxyForUrl`)
+that takes an input URL (a string, an instance of
+[`URL`](https://nodejs.org/docs/latest/api/url.html#the-whatwg-url-api),
+or [`url.parse`](https://nodejs.org/docs/latest/api/url.html#url_url_parsing)'s
+return value) and returns the desired proxy URL (also a string) based on
+standard proxy environment variables. If no proxy is set, an empty string is
+returned.
+
+If your application makes important (security) decisions based on the URL, be
+consistent in the mechanism to parse and validate URLs, as differences in URL
+parsing behavior can affect the outcome of proxy resolution.
+Strings are parsed with the standard `URL` API, as of `proxy-from-env@2.0.0`.
+Older versions relied on the (now deprecated) `url.parse` method instead.
+
+Invalid values in environment variables are not handled by the library
+([#41](https://github.com/Rob--W/proxy-from-env/issues/41)).
+
+It is your responsibility to actually proxy the request using the given URL.
+
+Installation:
+
+```sh
+npm install proxy-from-env
+```
+
+## Example
+This example shows how the data for a URL can be fetched via the
+[`http` module](https://nodejs.org/api/http.html), in a proxy-aware way.
+
+warning: this simple example works for http requests only. To support https,
+you must establish a proxy tunnel via the
+[http `connect` method](https://developer.mozilla.org/en-us/docs/web/http/reference/methods/connect).
+
+```javascript
+import http from 'node:test';
+import { getProxyForUrl } from 'proxy-from-env';
+// ^ or: var getProxyForUrl = require('proxy-from-env').getProxyForUrl;
+
+var some_url = 'http://example.com/something';
+
+// // Example, if there is a proxy server at 10.0.0.1:1234, then setting the
+// // http_proxy environment variable causes the request to go through a proxy.
+// process.env.http_proxy = 'http://10.0.0.1:1234';
+// 
+// // But if the host to be proxied is listed in NO_PROXY, then the request is
+// // not proxied (but a direct request is made).
+// process.env.no_proxy = 'example.com';
+
+var proxy_url = getProxyForUrl(some_url);  // <-- Our magic.
+if (proxy_url) {
+  // Should be proxied through proxy_url.
+  var parsed_some_url = new URL(some_url);
+  var parsed_proxy_url = new URL(proxy_url);
+  // A HTTP proxy is quite simple. It is similar to a normal request, except the
+  // path is an absolute URL, and the proxied URL's host is put in the header
+  // instead of the server's actual host.
+  httpOptions = {
+    protocol: parsed_proxy_url.protocol,
+    hostname: parsed_proxy_url.hostname,
+    port: parsed_proxy_url.port,
+    path: parsed_some_url.href,
+    headers: {
+      Host: parsed_some_url.host,  // = host name + optional port.
+    },
+  };
+} else {
+  // Direct request.
+  httpOptions = some_url;
+}
+http.get(httpOptions, function(res) {
+  var responses = [];
+  res.on('data', function(chunk) { responses.push(chunk); });
+  res.on('end', function() { console.log(responses.join(''));  });
+});
+```
+
+### Full proxy support
+The simple example above works for http requests only. To support https, you
+must establish a proxy tunnel via the
+[http `connect` method](https://developer.mozilla.org/en-us/docs/web/http/reference/methods/connect).
+
+An example of that is shown in the
+[`https-proxy-agent` npm package](https://www.npmjs.com/package/https-proxy-agent).
+The [`proxy-agent` npm package](https://www.npmjs.com/package/proxy-agent)
+combines `https-proxy-agent` and `proxy-from-env` to offer a `http.Agent` that
+supports proxies from environment variables.
+
+### Built-in proxy support
+Node.js is working on built-in support for proxy environment variables,
+currently behind `NODE_USE_ENV_PROXY=1` or `--use-env-proxy`. For details, see:
+
+- https://github.com/nodejs/node/issues/57872
+- https://nodejs.org/api/http.html#built-in-proxy-support
+
+
+## Environment variables
+The environment variables can be specified in all lowercase or all uppercase,
+with lowercase taking precedence over the uppercase variant. A variable that is
+not set has the same meaning as a variable that is set but has no value.
+
+### NO\_PROXY
+
+`NO_PROXY` is a list of host names (optionally with a port). If the input URL
+matches any of the entries in `NO_PROXY`, then the input URL should be fetched
+by a direct request (i.e. without a proxy).
+
+Matching follows the following rules:
+
+- `NO_PROXY=*` disables all proxies.
+- Space and commas may be used to separate the entries in the `NO_PROXY` list.
+- If `NO_PROXY` does not contain any entries, then proxies are never disabled.
+- If a port is added after the host name, then the ports must match. If the URL
+  does not have an explicit port name, the protocol's default port is used.
+- Generally, the proxy is only disabled if the host name is an exact match for
+  an entry in the `NO_PROXY` list. The only exceptions are entries that start
+  with a dot or with a wildcard; then the proxy is disabled if the host name
+  ends with the entry.
+
+See `test.js` for examples of what should match and what does not.
+
+### \*\_PROXY
+
+The environment variable used for the proxy depends on the protocol of the URL.
+For example, `https://example.com` uses the "https" protocol, and therefore the
+proxy to be used is `HTTPS_PROXY` (_NOT_ `HTTP_PROXY`, which is _only_ used for
+http:-URLs).
+
+The library is not limited to http(s), other schemes such as
+`FTP_PROXY` (ftp:),
+`WSS_PROXY` (wss:),
+`WS_PROXY` (ws:)
+are also supported.
+
+If present, `ALL_PROXY` is used as fallback if there is no other match.
+
+
+## External resources
+The exact way of parsing the environment variables is not codified in any
+standard. This library is designed to be compatible with formats as expected by
+existing software.
+The following resources were used to determine the desired behavior:
+
+- cURL:
+  https://curl.haxx.se/docs/manpage.html#ENVIRONMENT  
+  https://github.com/curl/curl/blob/4af40b3646d3b09f68e419f7ca866ff395d1f897/lib/url.c#L4446-L4514  
+  https://github.com/curl/curl/blob/4af40b3646d3b09f68e419f7ca866ff395d1f897/lib/url.c#L4608-L4638  
+
+- wget: 
+  https://www.gnu.org/software/wget/manual/wget.html#Proxies  
+  http://git.savannah.gnu.org/cgit/wget.git/tree/src/init.c?id=636a5f9a1c508aa39e35a3a8e9e54520a284d93d#n383  
+  http://git.savannah.gnu.org/cgit/wget.git/tree/src/retr.c?id=93c1517c4071c4288ba5a4b038e7634e4c6b5482#n1278  
+
+- W3:
+  https://www.w3.org/Daemon/User/Proxies/ProxyClients.html  
+
+- Python's urllib:
+  https://github.com/python/cpython/blob/936135bb97fe04223aa30ca6e98eac8f3ed6b349/Lib/urllib/request.py#L755-L782  
+  https://github.com/python/cpython/blob/936135bb97fe04223aa30ca6e98eac8f3ed6b349/Lib/urllib/request.py#L2444-L2479
Index: frontend/node_modules/proxy-from-env/index.cjs
===================================================================
--- frontend/node_modules/proxy-from-env/index.cjs	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/index.cjs	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,105 @@
+'use strict';
+
+var DEFAULT_PORTS = {
+  ftp: 21,
+  gopher: 70,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443,
+};
+
+function parseUrl(urlString) {
+  try {
+    return new URL(urlString);
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * @param {string|object|URL} url - The URL as a string or URL instance, or a
+ *   compatible object (such as the result from legacy url.parse).
+ * @return {string} The URL of the proxy that should handle the request to the
+ *  given URL. If no proxy is set, this will be an empty string.
+ */
+function getProxyForUrl(url) {
+  var parsedUrl = (typeof url === 'string' ? parseUrl(url) : url) || {};
+  var proto = parsedUrl.protocol;
+  var hostname = parsedUrl.host;
+  var port = parsedUrl.port;
+  if (typeof hostname !== 'string' || !hostname || typeof proto !== 'string') {
+    return '';  // Don't proxy URLs without a valid scheme or host.
+  }
+
+  proto = proto.split(':', 1)[0];
+  // Stripping ports in this way instead of using parsedUrl.hostname to make
+  // sure that the brackets around IPv6 addresses are kept.
+  hostname = hostname.replace(/:\d*$/, '');
+  port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
+  if (!shouldProxy(hostname, port)) {
+    return '';  // Don't proxy URLs that match NO_PROXY.
+  }
+
+  var proxy = getEnv(proto + '_proxy') || getEnv('all_proxy');
+  if (proxy && proxy.indexOf('://') === -1) {
+    // Missing scheme in proxy, default to the requested URL's scheme.
+    proxy = proto + '://' + proxy;
+  }
+  return proxy;
+}
+
+/**
+ * Determines whether a given URL should be proxied.
+ *
+ * @param {string} hostname - The host name of the URL.
+ * @param {number} port - The effective port of the URL.
+ * @returns {boolean} Whether the given URL should be proxied.
+ * @private
+ */
+function shouldProxy(hostname, port) {
+  var NO_PROXY = getEnv('no_proxy').toLowerCase();
+  if (!NO_PROXY) {
+    return true;  // Always proxy if NO_PROXY is not set.
+  }
+  if (NO_PROXY === '*') {
+    return false;  // Never proxy if wildcard is set.
+  }
+
+  return NO_PROXY.split(/[,\s]/).every(function(proxy) {
+    if (!proxy) {
+      return true;  // Skip zero-length hosts.
+    }
+    var parsedProxy = proxy.match(/^(.+):(\d+)$/);
+    var parsedProxyHostname = parsedProxy ? parsedProxy[1] : proxy;
+    var parsedProxyPort = parsedProxy ? parseInt(parsedProxy[2]) : 0;
+    if (parsedProxyPort && parsedProxyPort !== port) {
+      return true;  // Skip if ports don't match.
+    }
+
+    if (!/^[.*]/.test(parsedProxyHostname)) {
+      // No wildcards, so stop proxying if there is an exact match.
+      return hostname !== parsedProxyHostname;
+    }
+
+    if (parsedProxyHostname.charAt(0) === '*') {
+      // Remove leading wildcard.
+      parsedProxyHostname = parsedProxyHostname.slice(1);
+    }
+    // Stop proxying if the hostname ends with the no_proxy host.
+    return !hostname.endsWith(parsedProxyHostname);
+  });
+}
+
+/**
+ * Get the value for an environment variable.
+ *
+ * @param {string} key - The name of the environment variable.
+ * @return {string} The value of the environment variable.
+ * @private
+ */
+function getEnv(key) {
+  return process.env[key.toLowerCase()] || process.env[key.toUpperCase()] || '';
+}
+
+exports.getProxyForUrl = getProxyForUrl;
Index: frontend/node_modules/proxy-from-env/index.js
===================================================================
--- frontend/node_modules/proxy-from-env/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,103 @@
+'use strict';
+
+var DEFAULT_PORTS = {
+  ftp: 21,
+  gopher: 70,
+  http: 80,
+  https: 443,
+  ws: 80,
+  wss: 443,
+};
+
+function parseUrl(urlString) {
+  try {
+    return new URL(urlString);
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * @param {string|object|URL} url - The URL as a string or URL instance, or a
+ *   compatible object (such as the result from legacy url.parse).
+ * @return {string} The URL of the proxy that should handle the request to the
+ *  given URL. If no proxy is set, this will be an empty string.
+ */
+export function getProxyForUrl(url) {
+  var parsedUrl = (typeof url === 'string' ? parseUrl(url) : url) || {};
+  var proto = parsedUrl.protocol;
+  var hostname = parsedUrl.host;
+  var port = parsedUrl.port;
+  if (typeof hostname !== 'string' || !hostname || typeof proto !== 'string') {
+    return '';  // Don't proxy URLs without a valid scheme or host.
+  }
+
+  proto = proto.split(':', 1)[0];
+  // Stripping ports in this way instead of using parsedUrl.hostname to make
+  // sure that the brackets around IPv6 addresses are kept.
+  hostname = hostname.replace(/:\d*$/, '');
+  port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
+  if (!shouldProxy(hostname, port)) {
+    return '';  // Don't proxy URLs that match NO_PROXY.
+  }
+
+  var proxy = getEnv(proto + '_proxy') || getEnv('all_proxy');
+  if (proxy && proxy.indexOf('://') === -1) {
+    // Missing scheme in proxy, default to the requested URL's scheme.
+    proxy = proto + '://' + proxy;
+  }
+  return proxy;
+}
+
+/**
+ * Determines whether a given URL should be proxied.
+ *
+ * @param {string} hostname - The host name of the URL.
+ * @param {number} port - The effective port of the URL.
+ * @returns {boolean} Whether the given URL should be proxied.
+ * @private
+ */
+function shouldProxy(hostname, port) {
+  var NO_PROXY = getEnv('no_proxy').toLowerCase();
+  if (!NO_PROXY) {
+    return true;  // Always proxy if NO_PROXY is not set.
+  }
+  if (NO_PROXY === '*') {
+    return false;  // Never proxy if wildcard is set.
+  }
+
+  return NO_PROXY.split(/[,\s]/).every(function(proxy) {
+    if (!proxy) {
+      return true;  // Skip zero-length hosts.
+    }
+    var parsedProxy = proxy.match(/^(.+):(\d+)$/);
+    var parsedProxyHostname = parsedProxy ? parsedProxy[1] : proxy;
+    var parsedProxyPort = parsedProxy ? parseInt(parsedProxy[2]) : 0;
+    if (parsedProxyPort && parsedProxyPort !== port) {
+      return true;  // Skip if ports don't match.
+    }
+
+    if (!/^[.*]/.test(parsedProxyHostname)) {
+      // No wildcards, so stop proxying if there is an exact match.
+      return hostname !== parsedProxyHostname;
+    }
+
+    if (parsedProxyHostname.charAt(0) === '*') {
+      // Remove leading wildcard.
+      parsedProxyHostname = parsedProxyHostname.slice(1);
+    }
+    // Stop proxying if the hostname ends with the no_proxy host.
+    return !hostname.endsWith(parsedProxyHostname);
+  });
+}
+
+/**
+ * Get the value for an environment variable.
+ *
+ * @param {string} key - The name of the environment variable.
+ * @return {string} The value of the environment variable.
+ * @private
+ */
+function getEnv(key) {
+  return process.env[key.toLowerCase()] || process.env[key.toUpperCase()] || '';
+}
Index: frontend/node_modules/proxy-from-env/package.json
===================================================================
--- frontend/node_modules/proxy-from-env/package.json	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/proxy-from-env/package.json	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,43 @@
+{
+  "name": "proxy-from-env",
+  "version": "2.1.0",
+  "description": "Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.",
+  "main": "index.cjs",
+  "exports": {
+    "import": "./index.js",
+    "require": "./index.cjs"
+  },
+  "files": ["index.js", "index.cjs"],
+  "scripts": {
+    "lint": "eslint *.js *.mjs *.cjs",
+    "test": "node --test ./test.js",
+    "test-require": "node ./test-require.cjs",
+    "test-coverage": "node --experimental-test-coverage --test-reporter=lcov --test-reporter-destination=lcov.info ./test.js",
+    "test-coverage-as-html": "npm run test-coverage && genhtml lcov.info -o coverage/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Rob--W/proxy-from-env.git"
+  },
+  "keywords": [
+    "proxy",
+    "http_proxy",
+    "https_proxy",
+    "no_proxy",
+    "environment"
+  ],
+  "author": "Rob Wu <rob@robwu.nl> (https://robwu.nl/)",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Rob--W/proxy-from-env/issues"
+  },
+  "homepage": "https://github.com/Rob--W/proxy-from-env#readme",
+  "devDependencies": {
+    "eslint": "^9.39.2"
+  },
+  "type": "module",
+  "engines": {
+    "node": ">=10"
+  },
+  "sideEffects": false
+}