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/playwright-core/lib/utilsBundle.js

@@ -0,0 +1,106 @@
+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+var utilsBundle_exports = {};
+__export(utilsBundle_exports, {
+  HttpsProxyAgent: () => HttpsProxyAgent,
+  PNG: () => PNG,
+  SocksProxyAgent: () => SocksProxyAgent,
+  colors: () => colors,
+  debug: () => debug,
+  diff: () => diff,
+  dotenv: () => dotenv,
+  getProxyForUrl: () => getProxyForUrl,
+  jpegjs: () => jpegjs,
+  lockfile: () => lockfile,
+  mime: () => mime,
+  minimatch: () => minimatch,
+  ms: () => ms,
+  open: () => open,
+  program: () => program,
+  progress: () => progress,
+  ws: () => ws,
+  wsReceiver: () => wsReceiver,
+  wsSender: () => wsSender,
+  wsServer: () => wsServer,
+  yaml: () => yaml
+});
+module.exports = __toCommonJS(utilsBundle_exports);
+const colors = require("./utilsBundleImpl").colors;
+const debug = require("./utilsBundleImpl").debug;
+const diff = require("./utilsBundleImpl").diff;
+const dotenv = require("./utilsBundleImpl").dotenv;
+const getProxyForUrl = require("./utilsBundleImpl").getProxyForUrl;
+const HttpsProxyAgent = require("./utilsBundleImpl").HttpsProxyAgent;
+const jpegjs = require("./utilsBundleImpl").jpegjs;
+const lockfile = require("./utilsBundleImpl").lockfile;
+const mime = require("./utilsBundleImpl").mime;
+const minimatch = require("./utilsBundleImpl").minimatch;
+const open = require("./utilsBundleImpl").open;
+const PNG = require("./utilsBundleImpl").PNG;
+const program = require("./utilsBundleImpl").program;
+const progress = require("./utilsBundleImpl").progress;
+const SocksProxyAgent = require("./utilsBundleImpl").SocksProxyAgent;
+const yaml = require("./utilsBundleImpl").yaml;
+const ws = require("./utilsBundleImpl").ws;
+const wsServer = require("./utilsBundleImpl").wsServer;
+const wsReceiver = require("./utilsBundleImpl").wsReceiver;
+const wsSender = require("./utilsBundleImpl").wsSender;
+function ms(ms2) {
+  if (!isFinite(ms2))
+    return "-";
+  if (ms2 === 0)
+    return "0ms";
+  if (ms2 < 1e3)
+    return ms2.toFixed(0) + "ms";
+  const seconds = ms2 / 1e3;
+  if (seconds < 60)
+    return seconds.toFixed(1) + "s";
+  const minutes = seconds / 60;
+  if (minutes < 60)
+    return minutes.toFixed(1) + "m";
+  const hours = minutes / 60;
+  if (hours < 24)
+    return hours.toFixed(1) + "h";
+  const days = hours / 24;
+  return days.toFixed(1) + "d";
+}
+// Annotate the CommonJS export names for ESM import in node:
+0 && (module.exports = {
+  HttpsProxyAgent,
+  PNG,
+  SocksProxyAgent,
+  colors,
+  debug,
+  diff,
+  dotenv,
+  getProxyForUrl,
+  jpegjs,
+  lockfile,
+  mime,
+  minimatch,
+  ms,
+  open,
+  program,
+  progress,
+  ws,
+  wsReceiver,
+  wsSender,
+  wsServer,
+  yaml
+});