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/jest.config.js

@@ -0,0 +1,40 @@
+/** @type {import('jest').Config} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'jsdom',
+  roots: ['<rootDir>/src'],
+  testMatch: [
+    '**/__tests__/**/*.(ts|tsx|js)',
+    '**/*.(test|spec).(ts|tsx|js)'
+  ],
+  transform: {
+    '^.+\\.(ts|tsx)$': 'ts-jest',
+  },
+  collectCoverageFrom: [
+    'src/**/*.(ts|tsx)',
+    '!src/**/*.d.ts',
+    '!src/main.tsx',
+    '!src/vite-env.d.ts'
+  ],
+  moduleNameMapping: {
+    '^@/(.*)$': '<rootDir>/src/$1',
+    '\\.(css|less|scss|sass)$': 'identity-obj-proxy',
+    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': 'jest-transform-stub'
+  },
+  setupFilesAfterEnv: ['<rootDir>/src/test/setup.ts'],
+  testPathIgnorePatterns: [
+    '<rootDir>/node_modules/',
+    '<rootDir>/dist/',
+    '<rootDir>/e2e/'
+  ],
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
+  coverageThreshold: {
+    global: {
+      branches: 70,
+      functions: 70,
+      lines: 70,
+      statements: 70
+    }
+  },
+  testTimeout: 10000
+};