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/is-generator-fn/readme.md

@@ -0,0 +1,33 @@
+# is-generator-fn [![Build Status](https://travis-ci.org/sindresorhus/is-generator-fn.svg?branch=master)](https://travis-ci.org/sindresorhus/is-generator-fn)
+
+> Check if something is a [generator function](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/function*)
+
+
+## Install
+
+```
+$ npm install is-generator-fn
+```
+
+
+## Usage
+
+```js
+const isGeneratorFn = require('is-generator-fn');
+
+isGeneratorFn(function * () {});
+//=> true
+
+isGeneratorFn(function () {});
+//=> false
+```
+
+
+## Related
+
+- [is](https://github.com/sindresorhus/is) - Type check values
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)