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/exit-x/README.md

@@ -0,0 +1,81 @@
+# exit-x
+
+Fork of unmaintained https://github.com/cowboy/node-exit
+
+A replacement for process.exit that ensures stdio are fully drained before exiting.
+
+To make a long story short, if `process.exit` is called on Windows, script output is often truncated when pipe-redirecting `stdout` or `stderr`. This module attempts to work around this issue by waiting until those streams have been completely drained before actually calling `process.exit`.
+
+See [Node.js issue #3584](https://github.com/joyent/node/issues/3584) for further reference.
+
+Tested in OS X 10.8, Windows 7 on Node.js 0.8.25 and 0.10.18.
+
+Based on some code by [@vladikoff](https://github.com/vladikoff).
+
+## Getting Started
+
+Install the module with: `npm install exit`
+
+```javascript
+var exit = require("exit");
+
+// These lines should appear in the output, EVEN ON WINDOWS.
+console.log("omg");
+console.error("yay");
+
+// process.exit(5);
+exit(5);
+
+// These lines shouldn't appear in the output.
+console.log("wtf");
+console.error("bro");
+```
+
+## Don't believe me? Try it for yourself.
+
+In Windows, clone the repo and cd to the `test\fixtures` directory. The only difference between [log.js](test/fixtures/log.js) and [log-broken.js](test/fixtures/log-broken.js) is that the former uses `exit` while the latter calls `process.exit` directly.
+
+This test was done using cmd.exe, but you can see the same results using `| grep "std"` in either PowerShell or git-bash.
+
+```
+C:\node-exit\test\fixtures>node log.js 0 10 stdout stderr 2>&1 | find "std"
+stdout 0
+stderr 0
+stdout 1
+stderr 1
+stdout 2
+stderr 2
+stdout 3
+stderr 3
+stdout 4
+stderr 4
+stdout 5
+stderr 5
+stdout 6
+stderr 6
+stdout 7
+stderr 7
+stdout 8
+stderr 8
+stdout 9
+stderr 9
+
+C:\node-exit\test\fixtures>node log-broken.js 0 10 stdout stderr 2>&1 | find "std"
+
+C:\node-exit\test\fixtures>
+```
+
+## Contributing
+
+In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [Grunt](http://gruntjs.com/).
+
+## Release History
+
+2013-11-26 - v0.1.2 - Fixed a bug with hanging processes.  
+2013-09-26 - v0.1.1 - Fixed some bugs. It seems to actually work now!  
+2013-09-20 - v0.1.0 - Initial release.
+
+## License
+
+Copyright (c) 2013 "Cowboy" Ben Alman  
+Licensed under the MIT license.