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/istanbul-lib-coverage/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "istanbul-lib-coverage",
+  "version": "3.2.2",
+  "description": "Data library for istanbul coverage objects",
+  "author": "Krishnan Anantheswaran <kananthmail-github@yahoo.com>",
+  "main": "index.js",
+  "files": [
+    "lib",
+    "index.js"
+  ],
+  "scripts": {
+    "test": "nyc mocha"
+  },
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "mocha": "^6.2.2",
+    "nyc": "^15.0.0-beta.2"
+  },
+  "karmaDeps": {
+    "browserify-istanbul": "^0.2.1",
+    "karma": "^0.13.10",
+    "karma-browserify": "^4.2.1",
+    "karma-chrome-launcher": "^0.2.0",
+    "karma-coverage": "^0.4.2",
+    "karma-mocha": "^0.2.0",
+    "karma-phantomjs-launcher": "^0.2.0",
+    "phantomjs": "^1.9.17"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/istanbuljs/istanbuljs.git",
+    "directory": "packages/istanbul-lib-coverage"
+  },
+  "keywords": [
+    "istanbul",
+    "coverage",
+    "data"
+  ],
+  "license": "BSD-3-Clause",
+  "bugs": {
+    "url": "https://github.com/istanbuljs/istanbuljs/issues"
+  },
+  "homepage": "https://istanbul.js.org/",
+  "engines": {
+    "node": ">=8"
+  }
+}