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/@testing-library/user-event/dist/esm/pointer/parseKeyDef.js

@@ -0,0 +1,21 @@
+import '../utils/dataTransfer/Clipboard.js';
+import { readNextDescriptor } from '../utils/keyDef/readNextDescriptor.js';
+
+function parseKeyDef(pointerMap, keys) {
+    const defs = [];
+    do {
+        const { descriptor, consumedLength, releasePrevious, releaseSelf = true } = readNextDescriptor(keys, 'pointer');
+        const keyDef = pointerMap.find((p)=>p.name === descriptor);
+        if (keyDef) {
+            defs.push({
+                keyDef,
+                releasePrevious,
+                releaseSelf
+            });
+        }
+        keys = keys.slice(consumedLength);
+    }while (keys)
+    return defs;
+}
+
+export { parseKeyDef };