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/strip-indent/readme.md

@@ -0,0 +1,44 @@
+# strip-indent [![Build Status](https://travis-ci.org/sindresorhus/strip-indent.svg?branch=master)](https://travis-ci.org/sindresorhus/strip-indent)
+
+> Strip leading whitespace from each line in a string
+
+The line with the least number of leading whitespace, ignoring empty lines, determines the number to remove.
+
+Useful for removing redundant indentation.
+
+
+## Install
+
+```
+$ npm install strip-indent
+```
+
+
+## Usage
+
+```js
+const stripIndent = require('strip-indent');
+
+const string = '\tunicorn\n\t\tcake';
+/*
+	unicorn
+		cake
+*/
+
+stripIndent(string);
+/*
+unicorn
+	cake
+*/
+```
+
+
+## Related
+
+- [strip-indent-cli](https://github.com/sindresorhus/strip-indent-cli) - CLI for this module
+- [indent-string](https://github.com/sindresorhus/indent-string) - Indent each line in a string
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)