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/node-int64/package.json

@@ -0,0 +1,27 @@
+{
+  "name": "node-int64",
+  "description": "Support for representing 64-bit integers in JavaScript",
+  "url": "http://github.com/broofa/node-int64",
+  "keywords": [
+    "math",
+    "integer",
+    "int64"
+  ],
+  "author": "Robert Kieffer <robert@broofa.com>",
+  "contributors": [],
+  "dependencies": {},
+  "license": "MIT",
+  "lib": ".",
+  "main": "./Int64.js",
+  "version": "0.4.0",
+  "scripts": {
+    "test": "nodeunit test.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/broofa/node-int64"
+  },
+  "devDependencies": {
+    "nodeunit": "^0.9.0"
+  }
+}