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/@pkgr/core/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "@pkgr/core",
+  "version": "0.2.7",
+  "type": "module",
+  "description": "Shared core module for `@pkgr` packages or any package else",
+  "repository": "git+https://github.com/un-ts/pkgr.git",
+  "homepage": "https://github.com/un-ts/pkgr/blob/master/packages/core",
+  "author": "JounQin <admin@1stg.me> (https://www.1stG.me)",
+  "funding": "https://opencollective.com/pkgr",
+  "license": "MIT",
+  "engines": {
+    "node": "^12.20.0 || ^14.18.0 || >=16.0.0"
+  },
+  "main": "./lib/index.cjs",
+  "types": "./index.d.cts",
+  "module": "./lib/index.js",
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./lib/index.d.ts",
+        "default": "./lib/index.js"
+      },
+      "require": {
+        "types": "./index.d.cts",
+        "default": "./lib/index.cjs"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "files": [
+    "index.d.cts",
+    "lib"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "sideEffects": false
+}