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/makeerror/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "makeerror",
+  "description": "A library to make errors.",
+  "version": "1.0.12",
+  "license": "BSD-3-Clause",
+  "author": "Naitik Shah <n@daaku.org>",
+  "main": "lib/makeerror",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/daaku/nodejs-makeerror"
+  },
+  "scripts": {
+    "test": "NODE_PATH=./lib mocha --ui exports"
+  },
+  "dependencies": {
+    "tmpl": "1.0.5"
+  },
+  "devDependencies": {
+    "mocha": "9.1.3"
+  }
+}