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/@testing-library/jest-dom/dist/index.js

@@ -0,0 +1,12 @@
+'use strict';
+
+var matchers = require('./matchers-7fb38cd4.js');
+require('redent');
+require('@adobe/css-tools');
+require('dom-accessibility-api');
+require('aria-query');
+require('chalk');
+require('lodash/isEqualWith.js');
+require('css.escape');
+
+expect.extend(matchers.extensions);

frontend/node_modules/@testing-library/jest-dom/dist/index.mjs

@@ -0,0 +1,10 @@
+import { e as extensions } from './matchers-c85aadf8.mjs';
+import 'redent';
+import '@adobe/css-tools';
+import 'dom-accessibility-api';
+import 'aria-query';
+import 'chalk';
+import 'lodash/isEqualWith.js';
+import 'css.escape';
+
+expect.extend(extensions);

frontend/node_modules/@testing-library/jest-dom/dist/jest-globals.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var globals = require('@jest/globals');
+var matchers = require('./matchers-7fb38cd4.js');
+require('redent');
+require('@adobe/css-tools');
+require('dom-accessibility-api');
+require('aria-query');
+require('chalk');
+require('lodash/isEqualWith.js');
+require('css.escape');
+
+/* istanbul ignore file */
+
+
+globals.expect.extend(matchers.extensions);

frontend/node_modules/@testing-library/jest-dom/dist/jest-globals.mjs

@@ -0,0 +1,14 @@
+import { expect } from '@jest/globals';
+import { e as extensions } from './matchers-c85aadf8.mjs';
+import 'redent';
+import '@adobe/css-tools';
+import 'dom-accessibility-api';
+import 'aria-query';
+import 'chalk';
+import 'lodash/isEqualWith.js';
+import 'css.escape';
+
+/* istanbul ignore file */
+
+
+expect.extend(extensions);

frontend/node_modules/@testing-library/jest-dom/dist/matchers.js

@@ -0,0 +1,42 @@
+'use strict';
+
+var matchers = require('./matchers-7fb38cd4.js');
+require('redent');
+require('@adobe/css-tools');
+require('dom-accessibility-api');
+require('aria-query');
+require('chalk');
+require('lodash/isEqualWith.js');
+require('css.escape');
+
+
+
+exports.toBeChecked = matchers.toBeChecked;
+exports.toBeDisabled = matchers.toBeDisabled;
+exports.toBeEmpty = matchers.toBeEmpty;
+exports.toBeEmptyDOMElement = matchers.toBeEmptyDOMElement;
+exports.toBeEnabled = matchers.toBeEnabled;
+exports.toBeInTheDOM = matchers.toBeInTheDOM;
+exports.toBeInTheDocument = matchers.toBeInTheDocument;
+exports.toBeInvalid = matchers.toBeInvalid;
+exports.toBePartiallyChecked = matchers.toBePartiallyChecked;
+exports.toBeRequired = matchers.toBeRequired;
+exports.toBeValid = matchers.toBeValid;
+exports.toBeVisible = matchers.toBeVisible;
+exports.toContainElement = matchers.toContainElement;
+exports.toContainHTML = matchers.toContainHTML;
+exports.toHaveAccessibleDescription = matchers.toHaveAccessibleDescription;
+exports.toHaveAccessibleErrorMessage = matchers.toHaveAccessibleErrorMessage;
+exports.toHaveAccessibleName = matchers.toHaveAccessibleName;
+exports.toHaveAttribute = matchers.toHaveAttribute;
+exports.toHaveClass = matchers.toHaveClass;
+exports.toHaveDescription = matchers.toHaveDescription;
+exports.toHaveDisplayValue = matchers.toHaveDisplayValue;
+exports.toHaveErrorMessage = matchers.toHaveErrorMessage;
+exports.toHaveFocus = matchers.toHaveFocus;
+exports.toHaveFormValues = matchers.toHaveFormValues;
+exports.toHaveRole = matchers.toHaveRole;
+exports.toHaveSelection = matchers.toHaveSelection;
+exports.toHaveStyle = matchers.toHaveStyle;
+exports.toHaveTextContent = matchers.toHaveTextContent;
+exports.toHaveValue = matchers.toHaveValue;

frontend/node_modules/@testing-library/jest-dom/dist/matchers.mjs

@@ -0,0 +1,8 @@
+export { z as toBeChecked, r as toBeDisabled, b as toBeEmpty, c as toBeEmptyDOMElement, s as toBeEnabled, t as toBeInTheDOM, a as toBeInTheDocument, v as toBeInvalid, A as toBePartiallyChecked, u as toBeRequired, w as toBeValid, q as toBeVisible, d as toContainElement, f as toContainHTML, h as toHaveAccessibleDescription, i as toHaveAccessibleErrorMessage, k as toHaveAccessibleName, l as toHaveAttribute, m as toHaveClass, B as toHaveDescription, y as toHaveDisplayValue, C as toHaveErrorMessage, o as toHaveFocus, p as toHaveFormValues, j as toHaveRole, D as toHaveSelection, n as toHaveStyle, g as toHaveTextContent, x as toHaveValue } from './matchers-c85aadf8.mjs';
+import 'redent';
+import '@adobe/css-tools';
+import 'dom-accessibility-api';
+import 'aria-query';
+import 'chalk';
+import 'lodash/isEqualWith.js';
+import 'css.escape';

frontend/node_modules/@testing-library/jest-dom/dist/vitest.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var vitest = require('vitest');
+var matchers = require('./matchers-7fb38cd4.js');
+require('redent');
+require('@adobe/css-tools');
+require('dom-accessibility-api');
+require('aria-query');
+require('chalk');
+require('lodash/isEqualWith.js');
+require('css.escape');
+
+/* istanbul ignore file */
+
+
+vitest.expect.extend(matchers.extensions);

frontend/node_modules/@testing-library/jest-dom/dist/vitest.mjs

@@ -0,0 +1,14 @@
+import { expect } from 'vitest';
+import { e as extensions } from './matchers-c85aadf8.mjs';
+import 'redent';
+import '@adobe/css-tools';
+import 'dom-accessibility-api';
+import 'aria-query';
+import 'chalk';
+import 'lodash/isEqualWith.js';
+import 'css.escape';
+
+/* istanbul ignore file */
+
+
+expect.extend(extensions);