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/agent-base/dist/helpers.d.ts

@@ -0,0 +1,15 @@
+/// <reference types="node" />
+/// <reference types="node" />
+/// <reference types="node" />
+/// <reference types="node" />
+/// <reference types="node" />
+import * as http from 'http';
+import * as https from 'https';
+import type { Readable } from 'stream';
+export type ThenableRequest = http.ClientRequest & {
+    then: Promise<http.IncomingMessage>['then'];
+};
+export declare function toBuffer(stream: Readable): Promise<Buffer>;
+export declare function json(stream: Readable): Promise<any>;
+export declare function req(url: string | URL, opts?: https.RequestOptions): ThenableRequest;
+//# sourceMappingURL=helpers.d.ts.map