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/source-map-support/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "source-map-support",
+  "description": "Fixes stack traces for files with source maps",
+  "version": "0.5.13",
+  "main": "./source-map-support.js",
+  "scripts": {
+    "build": "node build.js",
+    "serve-tests": "http-server -p 1336",
+    "prepublish": "npm run build",
+    "test": "mocha"
+  },
+  "dependencies": {
+    "buffer-from": "^1.0.0",
+    "source-map": "^0.6.0"
+  },
+  "devDependencies": {
+    "browserify": "^4.2.3",
+    "coffeescript": "^1.12.7",
+    "http-server": "^0.11.1",
+    "mocha": "^3.5.3",
+    "webpack": "^1.15.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/evanw/node-source-map-support"
+  },
+  "bugs": {
+    "url": "https://github.com/evanw/node-source-map-support/issues"
+  },
+  "license": "MIT"
+}