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/co/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "co",
+  "version": "4.6.0",
+  "description": "generator async control flow goodness",
+  "keywords": [
+    "async",
+    "flow",
+    "generator",
+    "coro",
+    "coroutine"
+  ],
+  "devDependencies": {
+    "browserify": "^10.0.0",
+    "istanbul-harmony": "0",
+    "mocha": "^2.0.0",
+    "mz": "^1.0.2"
+  },
+  "scripts": {
+    "test": "mocha --harmony",
+    "test-cov": "node --harmony node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- --reporter dot",
+    "test-travis": "node --harmony node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha --report lcovonly -- --reporter dot",
+    "prepublish": "npm run browserify",
+    "browserify": "browserify index.js -o ./co-browser.js -s co"
+  },
+  "files": [
+    "index.js"
+  ],
+  "license": "MIT",
+  "repository": "tj/co",
+  "engines": {
+    "iojs": ">= 1.0.0",
+    "node": ">= 0.12.0"
+  }
+}