Set up comprehensive frontend testing infrastructure

- Install Jest for unit testing with React Testing Library
- Install Playwright for end-to-end testing
- Configure Jest with proper TypeScript support and module mapping
- Create test setup files and utilities for both unit and e2e tests

Components:
* Jest configuration with coverage thresholds
* Playwright configuration with browser automation
* Unit tests for LoginForm, AuthContext, and useSocketIO hook
* E2E tests for authentication, dashboard, and agents workflows
* GitHub Actions workflow for automated testing
* Mock data and API utilities for consistent testing
* Test documentation with best practices

Testing features:
- Unit tests with 70% coverage threshold
- E2E tests with API mocking and user journey testing
- CI/CD integration for automated test runs
- Cross-browser testing support with Playwright
- Authentication system testing end-to-end

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

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

frontend/node_modules/async/README.md

@@ -0,0 +1,59 @@
+![Async Logo](https://raw.githubusercontent.com/caolan/async/master/logo/async-logo_readme.jpg)
+
+![Github Actions CI status](https://github.com/caolan/async/actions/workflows/ci.yml/badge.svg)
+[![NPM version](https://img.shields.io/npm/v/async.svg)](https://www.npmjs.com/package/async)
+[![Coverage Status](https://coveralls.io/repos/caolan/async/badge.svg?branch=master)](https://coveralls.io/r/caolan/async?branch=master)
+[![Join the chat at https://gitter.im/caolan/async](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/caolan/async?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/async/badge?style=rounded)](https://www.jsdelivr.com/package/npm/async)
+
+<!--
+|Linux|Windows|MacOS|
+|-|-|-|
+|[![Linux Build Status](https://dev.azure.com/caolanmcmahon/async/_apis/build/status/caolan.async?branchName=master&jobName=Linux&configuration=Linux%20node_10_x)](https://dev.azure.com/caolanmcmahon/async/_build/latest?definitionId=1&branchName=master) | [![Windows Build Status](https://dev.azure.com/caolanmcmahon/async/_apis/build/status/caolan.async?branchName=master&jobName=Windows&configuration=Windows%20node_10_x)](https://dev.azure.com/caolanmcmahon/async/_build/latest?definitionId=1&branchName=master) | [![MacOS Build Status](https://dev.azure.com/caolanmcmahon/async/_apis/build/status/caolan.async?branchName=master&jobName=OSX&configuration=OSX%20node_10_x)](https://dev.azure.com/caolanmcmahon/async/_build/latest?definitionId=1&branchName=master)| -->
+
+Async is a utility module which provides straight-forward, powerful functions for working with [asynchronous JavaScript](http://caolan.github.io/async/v3/global.html). Although originally designed for use with [Node.js](https://nodejs.org/) and installable via `npm i async`, it can also be used directly in the browser.  An ESM/MJS version is included in the main `async` package that should automatically be used with compatible bundlers such as Webpack and Rollup.
+
+A pure ESM version of Async is available as [`async-es`](https://www.npmjs.com/package/async-es).
+
+For Documentation, visit <https://caolan.github.io/async/>
+
+*For Async v1.5.x documentation, go [HERE](https://github.com/caolan/async/blob/v1.5.2/README.md)*
+
+
+```javascript
+// for use with Node-style callbacks...
+var async = require("async");
+
+var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"};
+var configs = {};
+
+async.forEachOf(obj, (value, key, callback) => {
+    fs.readFile(__dirname + value, "utf8", (err, data) => {
+        if (err) return callback(err);
+        try {
+            configs[key] = JSON.parse(data);
+        } catch (e) {
+            return callback(e);
+        }
+        callback();
+    });
+}, err => {
+    if (err) console.error(err.message);
+    // configs is now a map of JSON data
+    doSomethingWith(configs);
+});
+```
+
+```javascript
+var async = require("async");
+
+// ...or ES2017 async functions
+async.mapLimit(urls, 5, async function(url) {
+    const response = await fetch(url)
+    return response.body
+}, (err, results) => {
+    if (err) throw err
+    // results is now an array of the response bodies
+    console.log(results)
+})
+```