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/jest/build/index.js

@@ -0,0 +1,74 @@
+/*!
+ * /**
+ *  * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *  *
+ *  * This source code is licensed under the MIT license found in the
+ *  * LICENSE file in the root directory of this source tree.
+ *  * /
+ */
+/******/ (() => { // webpackBootstrap
+/******/ 	"use strict";
+var __webpack_exports__ = {};
+// This entry needs to be wrapped in an IIFE because it uses a non-standard name for the exports (exports).
+(() => {
+var exports = __webpack_exports__;
+
+
+Object.defineProperty(exports, "__esModule", ({
+  value: true
+}));
+Object.defineProperty(exports, "SearchSource", ({
+  enumerable: true,
+  get: function () {
+    return _core().SearchSource;
+  }
+}));
+Object.defineProperty(exports, "buildArgv", ({
+  enumerable: true,
+  get: function () {
+    return _jestCli().buildArgv;
+  }
+}));
+Object.defineProperty(exports, "createTestScheduler", ({
+  enumerable: true,
+  get: function () {
+    return _core().createTestScheduler;
+  }
+}));
+Object.defineProperty(exports, "getVersion", ({
+  enumerable: true,
+  get: function () {
+    return _core().getVersion;
+  }
+}));
+Object.defineProperty(exports, "run", ({
+  enumerable: true,
+  get: function () {
+    return _jestCli().run;
+  }
+}));
+Object.defineProperty(exports, "runCLI", ({
+  enumerable: true,
+  get: function () {
+    return _core().runCLI;
+  }
+}));
+function _core() {
+  const data = require("@jest/core");
+  _core = function () {
+    return data;
+  };
+  return data;
+}
+function _jestCli() {
+  const data = require("jest-cli");
+  _jestCli = function () {
+    return data;
+  };
+  return data;
+}
+})();
+
+module.exports = __webpack_exports__;
+/******/ })()
+;