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/playwright/lib/reporters/markdown.js

@@ -0,0 +1,144 @@
+"use strict";
+var __create = Object.create;
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __getProtoOf = Object.getPrototypeOf;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
+  // If the importer is in node compatibility mode or this is not an ESM
+  // file that has been converted to a CommonJS file using a Babel-
+  // compatible transform (i.e. "__esModule" has not been set), then set
+  // "default" to the CommonJS "module.exports" for node compatibility.
+  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
+  mod
+));
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+var markdown_exports = {};
+__export(markdown_exports, {
+  default: () => markdown_default
+});
+module.exports = __toCommonJS(markdown_exports);
+var import_fs = __toESM(require("fs"));
+var import_path = __toESM(require("path"));
+class MarkdownReporter {
+  constructor(options) {
+    this._fatalErrors = [];
+    this._options = options;
+  }
+  printsToStdio() {
+    return false;
+  }
+  onBegin(config, suite) {
+    this._config = config;
+    this._suite = suite;
+  }
+  onError(error) {
+    this._fatalErrors.push(error);
+  }
+  async onEnd(result) {
+    const summary = this._generateSummary();
+    const lines = [];
+    if (this._fatalErrors.length)
+      lines.push(`**${this._fatalErrors.length} fatal errors, not part of any test**`);
+    if (summary.unexpected.length) {
+      lines.push(`**${summary.unexpected.length} failed**`);
+      this._printTestList(":x:", summary.unexpected, lines);
+    }
+    if (summary.flaky.length) {
+      lines.push(`<details>`);
+      lines.push(`<summary><b>${summary.flaky.length} flaky</b></summary>`);
+      this._printTestList(":warning:", summary.flaky, lines, " <br/>");
+      lines.push(`</details>`);
+      lines.push(``);
+    }
+    if (summary.interrupted.length) {
+      lines.push(`<details>`);
+      lines.push(`<summary><b>${summary.interrupted.length} interrupted</b></summary>`);
+      this._printTestList(":warning:", summary.interrupted, lines, " <br/>");
+      lines.push(`</details>`);
+      lines.push(``);
+    }
+    const skipped = summary.skipped ? `, ${summary.skipped} skipped` : "";
+    const didNotRun = summary.didNotRun ? `, ${summary.didNotRun} did not run` : "";
+    lines.push(`**${summary.expected} passed${skipped}${didNotRun}**`);
+    lines.push(`:heavy_check_mark::heavy_check_mark::heavy_check_mark:`);
+    lines.push(``);
+    await this.publishReport(lines.join("\n"));
+  }
+  async publishReport(report) {
+    const maybeRelativeFile = this._options.outputFile || "report.md";
+    const reportFile = import_path.default.resolve(this._options.configDir, maybeRelativeFile);
+    await import_fs.default.promises.mkdir(import_path.default.dirname(reportFile), { recursive: true });
+    await import_fs.default.promises.writeFile(reportFile, report);
+  }
+  _generateSummary() {
+    let didNotRun = 0;
+    let skipped = 0;
+    let expected = 0;
+    const interrupted = [];
+    const interruptedToPrint = [];
+    const unexpected = [];
+    const flaky = [];
+    this._suite.allTests().forEach((test) => {
+      switch (test.outcome()) {
+        case "skipped": {
+          if (test.results.some((result) => result.status === "interrupted")) {
+            if (test.results.some((result) => !!result.error))
+              interruptedToPrint.push(test);
+            interrupted.push(test);
+          } else if (!test.results.length || test.expectedStatus !== "skipped") {
+            ++didNotRun;
+          } else {
+            ++skipped;
+          }
+          break;
+        }
+        case "expected":
+          ++expected;
+          break;
+        case "unexpected":
+          unexpected.push(test);
+          break;
+        case "flaky":
+          flaky.push(test);
+          break;
+      }
+    });
+    return {
+      didNotRun,
+      skipped,
+      expected,
+      interrupted,
+      unexpected,
+      flaky
+    };
+  }
+  _printTestList(prefix, tests, lines, suffix) {
+    for (const test of tests)
+      lines.push(`${prefix} ${formatTestTitle(this._config.rootDir, test)}${suffix || ""}`);
+    lines.push(``);
+  }
+}
+function formatTestTitle(rootDir, test) {
+  const [, projectName, , ...titles] = test.titlePath();
+  const relativeTestPath = import_path.default.relative(rootDir, test.location.file);
+  const location = `${relativeTestPath}:${test.location.line}:${test.location.column}`;
+  const projectTitle = projectName ? `[${projectName}] \u203A ` : "";
+  const testTitle = `${projectTitle}${location} \u203A ${titles.join(" \u203A ")}`;
+  const extraTags = test.tags.filter((t) => !testTitle.includes(t));
+  return `${testTitle}${extraTags.length ? " " + extraTags.join(" ") : ""}`;
+}
+var markdown_default = MarkdownReporter;