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/user-event/dist/cjs/setup/api.js

@@ -0,0 +1,35 @@
+'use strict';
+
+var click = require('../convenience/click.js');
+var hover = require('../convenience/hover.js');
+var tab = require('../convenience/tab.js');
+var index = require('../keyboard/index.js');
+var copy = require('../clipboard/copy.js');
+var cut = require('../clipboard/cut.js');
+var paste = require('../clipboard/paste.js');
+var index$1 = require('../pointer/index.js');
+var clear = require('../utility/clear.js');
+var selectOptions = require('../utility/selectOptions.js');
+var type = require('../utility/type.js');
+var upload = require('../utility/upload.js');
+
+const userEventApi = {
+    click: click.click,
+    dblClick: click.dblClick,
+    tripleClick: click.tripleClick,
+    hover: hover.hover,
+    unhover: hover.unhover,
+    tab: tab.tab,
+    keyboard: index.keyboard,
+    copy: copy.copy,
+    cut: cut.cut,
+    paste: paste.paste,
+    pointer: index$1.pointer,
+    clear: clear.clear,
+    deselectOptions: selectOptions.deselectOptions,
+    selectOptions: selectOptions.selectOptions,
+    type: type.type,
+    upload: upload.upload
+};
+
+exports.userEventApi = userEventApi;