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-regex-util/build/index.d.ts

@@ -0,0 +1,21 @@
+/**
+ * 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.
+ */
+
+/**
+ * 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.
+ *
+ */
+export declare const escapePathForRegex: (dir: string) => string;
+
+export declare const escapeStrForRegex: (string: string) => string;
+
+export declare const replacePathSepForRegex: (string: string) => string;
+
+export {};

frontend/node_modules/jest-regex-util/build/index.js

@@ -0,0 +1,52 @@
+/*!
+ * /**
+ *  * 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
+}));
+exports.replacePathSepForRegex = exports.escapeStrForRegex = exports.escapePathForRegex = void 0;
+var _path = require("path");
+/**
+ * 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.
+ *
+ */
+
+const escapePathForRegex = dir => {
+  if (_path.sep === '\\') {
+    // Replace "\" with "/" so it's not escaped by escapeStrForRegex.
+    // replacePathSepForRegex will convert it back.
+    dir = dir.replaceAll('\\', '/');
+  }
+  return replacePathSepForRegex(escapeStrForRegex(dir));
+};
+exports.escapePathForRegex = escapePathForRegex;
+const escapeStrForRegex = string => string.replaceAll(/[$()*+.?[\\\]^{|}]/g, '\\$&');
+exports.escapeStrForRegex = escapeStrForRegex;
+const replacePathSepForRegex = string => {
+  if (_path.sep === '\\') {
+    return string.replaceAll(/(\/|(.)?\\(?![$()*+.?[\\\]^{|}]))/g, (_match, _, p2) => p2 && p2 !== '\\' ? `${p2}\\\\` : '\\\\');
+  }
+  return string;
+};
+exports.replacePathSepForRegex = replacePathSepForRegex;
+})();
+
+module.exports = __webpack_exports__;
+/******/ })()
+;

frontend/node_modules/jest-regex-util/build/index.mjs

@@ -0,0 +1,5 @@
+import cjsModule from './index.js';
+
+export const escapePathForRegex = cjsModule.escapePathForRegex;
+export const escapeStrForRegex = cjsModule.escapeStrForRegex;
+export const replacePathSepForRegex = cjsModule.replacePathSepForRegex;