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/get-caller-file/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "get-caller-file",
+  "version": "2.0.5",
+  "description": "",
+  "main": "index.js",
+  "directories": {
+    "test": "tests"
+  },
+  "files": [
+    "index.js",
+    "index.js.map",
+    "index.d.ts"
+  ],
+  "scripts": {
+    "prepare": "tsc",
+    "test": "mocha test",
+    "test:debug": "mocha test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/stefanpenner/get-caller-file.git"
+  },
+  "author": "Stefan Penner",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/stefanpenner/get-caller-file/issues"
+  },
+  "homepage": "https://github.com/stefanpenner/get-caller-file#readme",
+  "devDependencies": {
+    "@types/chai": "^4.1.7",
+    "@types/ensure-posix-path": "^1.0.0",
+    "@types/mocha": "^5.2.6",
+    "@types/node": "^11.10.5",
+    "chai": "^4.1.2",
+    "ensure-posix-path": "^1.0.1",
+    "mocha": "^5.2.0",
+    "typescript": "^3.3.3333"
+  },
+  "engines": {
+    "node": "6.* || 8.* || >= 10.*"
+  }
+}