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/dom-accessibility-api/dist/accessible-name-and-description.d.ts

@@ -0,0 +1,29 @@
+/**
+ * interface for an options-bag where `window.getComputedStyle` can be mocked
+ */
+export interface ComputeTextAlternativeOptions {
+    compute?: "description" | "name";
+    /**
+     * Set to true if window.computedStyle supports the second argument.
+     * This should be false in JSDOM. Otherwise JSDOM will log console errors.
+     */
+    computedStyleSupportsPseudoElements?: boolean;
+    /**
+     * mock window.getComputedStyle. Needs `content`, `display` and `visibility`
+     */
+    getComputedStyle?: typeof window.getComputedStyle;
+    /**
+     * Set to `true` if you want to include hidden elements in the accessible name and description computation.
+     * Skips 2A in https://w3c.github.io/accname/#computation-steps.
+     * @default false
+     */
+    hidden?: boolean;
+}
+/**
+ * implements https://w3c.github.io/accname/#mapping_additional_nd_te
+ * @param root
+ * @param options
+ * @returns
+ */
+export declare function computeTextAlternative(root: Element, options?: ComputeTextAlternativeOptions): string;
+//# sourceMappingURL=accessible-name-and-description.d.ts.map