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/require-directory/.jshintrc

@@ -0,0 +1,67 @@
+{
+    "maxerr"        : 50,
+    "bitwise"       : true,
+    "camelcase"     : true,
+    "curly"         : true,
+    "eqeqeq"        : true,
+    "forin"         : true,
+    "immed"         : true,
+    "indent"        : 2,
+    "latedef"       : true,
+    "newcap"        : true,
+    "noarg"         : true,
+    "noempty"       : true,
+    "nonew"         : true,
+    "plusplus"      : true,
+    "quotmark"      : true,
+    "undef"         : true,
+    "unused"        : true,
+    "strict"        : true,
+    "trailing"      : true,
+    "maxparams"     : false,
+    "maxdepth"      : false,
+    "maxstatements" : false,
+    "maxcomplexity" : false,
+    "maxlen"        : false,
+    "asi"           : false,
+    "boss"          : false,
+    "debug"         : false,
+    "eqnull"        : true,
+    "es5"           : false,
+    "esnext"        : false,
+    "moz"           : false,
+    "evil"          : false,
+    "expr"          : true,
+    "funcscope"     : true,
+    "globalstrict"  : true,
+    "iterator"      : true,
+    "lastsemic"     : false,
+    "laxbreak"      : false,
+    "laxcomma"      : false,
+    "loopfunc"      : false,
+    "multistr"      : false,
+    "proto"         : false,
+    "scripturl"     : false,
+    "smarttabs"     : false,
+    "shadow"        : false,
+    "sub"           : false,
+    "supernew"      : false,
+    "validthis"     : false,
+    "browser"       : true,
+    "couch"         : false,
+    "devel"         : true,
+    "dojo"          : false,
+    "jquery"        : false,
+    "mootools"      : false,
+    "node"          : true,
+    "nonstandard"   : false,
+    "prototypejs"   : false,
+    "rhino"         : false,
+    "worker"        : false,
+    "wsh"           : false,
+    "yui"           : false,
+    "nomen"         : true,
+    "onevar"        : true,
+    "passfail"      : false,
+    "white"         : true
+}