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-stream/readme.md

@@ -0,0 +1,60 @@
+# is-stream
+
+> Check if something is a [Node.js stream](https://nodejs.org/api/stream.html)
+
+## Install
+
+```
+$ npm install is-stream
+```
+
+## Usage
+
+```js
+const fs = require('fs');
+const isStream = require('is-stream');
+
+isStream(fs.createReadStream('unicorn.png'));
+//=> true
+
+isStream({});
+//=> false
+```
+
+## API
+
+### isStream(stream)
+
+Returns a `boolean` for whether it's a [`Stream`](https://nodejs.org/api/stream.html#stream_stream).
+
+#### isStream.writable(stream)
+
+Returns a `boolean` for whether it's a [`stream.Writable`](https://nodejs.org/api/stream.html#stream_class_stream_writable).
+
+#### isStream.readable(stream)
+
+Returns a `boolean` for whether it's a [`stream.Readable`](https://nodejs.org/api/stream.html#stream_class_stream_readable).
+
+#### isStream.duplex(stream)
+
+Returns a `boolean` for whether it's a [`stream.Duplex`](https://nodejs.org/api/stream.html#stream_class_stream_duplex).
+
+#### isStream.transform(stream)
+
+Returns a `boolean` for whether it's a [`stream.Transform`](https://nodejs.org/api/stream.html#stream_class_stream_transform).
+
+## Related
+
+- [is-file-stream](https://github.com/jamestalmage/is-file-stream) - Detect if a stream is a file stream
+
+---
+
+<div align="center">
+	<b>
+		<a href="https://tidelift.com/subscription/pkg/npm-is-stream?utm_source=npm-is-stream&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
+	</b>
+	<br>
+	<sub>
+		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
+	</sub>
+</div>