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/deepmerge/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "deepmerge",
+  "description": "A library for deep (recursive) merging of Javascript objects",
+  "keywords": [
+    "merge",
+    "deep",
+    "extend",
+    "copy",
+    "clone",
+    "recursive"
+  ],
+  "version": "4.3.1",
+  "homepage": "https://github.com/TehShrike/deepmerge",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/TehShrike/deepmerge.git"
+  },
+  "main": "dist/cjs.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "build": "rollup -c",
+    "test": "npm run build && tape test/*.js && jsmd readme.md && npm run test:typescript",
+    "test:typescript": "tsc --noEmit test/typescript.ts && ts-node test/typescript.ts",
+    "size": "npm run build && uglifyjs --compress --mangle -- ./dist/umd.js | gzip -c | wc -c"
+  },
+  "devDependencies": {
+    "@types/node": "^8.10.54",
+    "is-mergeable-object": "1.1.0",
+    "is-plain-object": "^5.0.0",
+    "jsmd": "^1.0.2",
+    "rollup": "^1.23.1",
+    "rollup-plugin-commonjs": "^10.1.0",
+    "rollup-plugin-node-resolve": "^5.2.0",
+    "tape": "^4.11.0",
+    "ts-node": "7.0.1",
+    "typescript": "=2.2.2",
+    "uglify-js": "^3.6.1"
+  },
+  "license": "MIT"
+}