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/whatwg-url/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "whatwg-url",
+  "version": "14.2.0",
+  "description": "An implementation of the WHATWG URL Standard's URL API and parsing machinery",
+  "main": "index.js",
+  "files": [
+    "index.js",
+    "webidl2js-wrapper.js",
+    "lib/*.js"
+  ],
+  "author": "Sebastian Mayr <github@smayr.name>",
+  "license": "MIT",
+  "repository": "jsdom/whatwg-url",
+  "dependencies": {
+    "tr46": "^5.1.0",
+    "webidl-conversions": "^7.0.0"
+  },
+  "devDependencies": {
+    "@domenic/eslint-config": "^4.0.1",
+    "benchmark": "^2.1.4",
+    "c8": "^10.1.3",
+    "esbuild": "^0.25.1",
+    "eslint": "^9.22.0",
+    "globals": "^16.0.0",
+    "webidl2js": "^18.0.0"
+  },
+  "engines": {
+    "node": ">=18"
+  },
+  "scripts": {
+    "coverage": "c8 node --test --experimental-test-coverage test/*.js",
+    "lint": "eslint",
+    "prepare": "node scripts/transform.js",
+    "pretest": "node scripts/get-latest-platform-tests.js && node scripts/transform.js",
+    "build-live-viewer": "esbuild --bundle --format=esm --sourcemap --outfile=live-viewer/whatwg-url.mjs index.js",
+    "test": "node --test test/*.js",
+    "bench": "node scripts/benchmark.js"
+  },
+  "c8": {
+    "reporter": [
+      "text",
+      "html"
+    ],
+    "exclude": [
+      "lib/Function.js",
+      "lib/URL.js",
+      "lib/URLSearchParams.js",
+      "lib/utils.js",
+      "scripts/",
+      "test/"
+    ]
+  }
+}