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/collect-v8-coverage/CHANGELOG.md

@@ -0,0 +1,18 @@
+## [1.0.2](https://github.com/SimenB/collect-v8-coverage/compare/v1.0.1...v1.0.2) (2023-07-05)
+
+
+### Bug Fixes
+
+* workaround for networked filesystems on Windows ([#174](https://github.com/SimenB/collect-v8-coverage/issues/174)) ([4de72ea](https://github.com/SimenB/collect-v8-coverage/commit/4de72ea976228d6d8b7fb78207c1187aa58ddf50))
+
+## [1.0.1](https://github.com/SimenB/collect-v8-coverage/compare/v1.0.0...v1.0.1) (2020-04-02)
+
+### Bug Fixes
+
+- link to repo from package.json ([cf54d65](https://github.com/SimenB/collect-v8-coverage/commit/cf54d659f23afd411cd0ff752e69fa97d2ab1707))
+
+# 1.0.0 (2019-12-16)
+
+### Features
+
+- initial commit ([57e2041](https://github.com/SimenB/collect-v8-coverage/commit/57e20413f385d7730c5684b1852c14777583807e))

frontend/node_modules/collect-v8-coverage/LICENSE

@@ -0,0 +1,22 @@
+MIT License
+
+Copyright (c) 2019 Simen Bekkhus
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/collect-v8-coverage/README.md

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+# collect-v8-coverage
+
+Use this module to start and stop the V8 inspector manually and collect precise coverage.
+
+```js
+const {CoverageInstrumenter} = require('collect-v8-coverage');
+
+const instrumenter = new CoverageInstrumenter();
+
+await instrumenter.startInstrumenting();
+
+// require some modules, run some code
+
+const coverage = await instrumenter.stopInstrumenting();
+```

frontend/node_modules/collect-v8-coverage/index.d.ts

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+/// <reference types="node" />
+import { Profiler } from 'inspector';
+export declare type V8Coverage = ReadonlyArray<Profiler.ScriptCoverage>;
+export declare class CoverageInstrumenter {
+  startInstrumenting(): Promise<void>;
+  stopInstrumenting(): Promise<V8Coverage>;
+}

frontend/node_modules/collect-v8-coverage/index.js

@@ -0,0 +1,52 @@
+'use strict';
+
+const { Session } = require('inspector');
+const { promisify } = require('util');
+
+class CoverageInstrumenter {
+  constructor() {
+    this.session = new Session();
+
+    this.postSession = promisify(this.session.post.bind(this.session));
+  }
+
+  async startInstrumenting() {
+    this.session.connect();
+
+    await this.postSession('Profiler.enable');
+
+    await this.postSession('Profiler.startPreciseCoverage', {
+      callCount: true,
+      detailed: true,
+    });
+  }
+
+  async stopInstrumenting() {
+    const {result} = await this.postSession(
+      'Profiler.takePreciseCoverage',
+    );
+
+    await this.postSession('Profiler.stopPreciseCoverage');
+
+    await this.postSession('Profiler.disable');
+
+    // When using networked filesystems on Windows, v8 sometimes returns URLs
+    // of the form file:////<host>/path. These URLs are not well understood
+    // by NodeJS (see https://github.com/nodejs/node/issues/48530).
+    // We circumvent this issue here by fixing these URLs.
+    // FWIW, Python has special code to deal with URLs like this
+    // https://github.com/python/cpython/blob/bef1c8761e3b0dfc5708747bb646ad8b669cbd67/Lib/nturl2path.py#L22C1-L22C1
+    if (process.platform === 'win32') {
+      const prefix = 'file:////';
+      result.forEach(res => {
+        if (res.url.startsWith(prefix)) {
+          res.url = 'file://' + res.url.slice(prefix.length);
+        }
+      })
+    }
+
+    return result;
+  }
+}
+
+module.exports.CoverageInstrumenter = CoverageInstrumenter;

frontend/node_modules/collect-v8-coverage/package.json

@@ -0,0 +1,52 @@
+{
+  "name": "collect-v8-coverage",
+  "version": "1.0.2",
+  "main": "index.js",
+  "types": "index.d.ts",
+  "repository": "SimenB/collect-v8-coverage",
+  "files": [
+    "CHANGELOG.md",
+    "index.js",
+    "index.d.ts"
+  ],
+  "license": "MIT",
+  "devDependencies": {
+    "@commitlint/cli": "^17.0.0",
+    "@commitlint/config-conventional": "^17.0.0",
+    "@semantic-release/changelog": "^6.0.0",
+    "@semantic-release/git": "^10.0.0",
+    "husky": "^8.0.0",
+    "lint-staged": "^13.0.0",
+    "prettier": "^2.2.1",
+    "semantic-release": "^21.0.0"
+  },
+  "prettier": {
+    "singleQuote": true,
+    "trailingComma": "all"
+  },
+  "lint-staged": {
+    "*.{js,ts,md,json}": "prettier --write"
+  },
+  "commitlint": {
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
+  },
+  "release": {
+    "branches": [
+      "main"
+    ],
+    "plugins": [
+      "@semantic-release/commit-analyzer",
+      "@semantic-release/release-notes-generator",
+      "@semantic-release/changelog",
+      "@semantic-release/npm",
+      "@semantic-release/git",
+      "@semantic-release/github"
+    ]
+  },
+  "scripts": {
+    "prepare": "husky install"
+  },
+  "packageManager": "yarn@3.6.0"
+}