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/dedent/dist/dedent.d.ts

@@ -0,0 +1,14 @@
+interface DedentOptions {
+    escapeSpecialCharacters?: boolean;
+    trimWhitespace?: boolean;
+}
+interface Dedent {
+    (literals: string): string;
+    (strings: TemplateStringsArray, ...values: unknown[]): string;
+    withOptions: CreateDedent;
+}
+type CreateDedent = (options: DedentOptions) => Dedent;
+
+declare const dedent: Dedent;
+
+export { CreateDedent, Dedent, DedentOptions, dedent as default };