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/jest-circus/build/runner.mjs

@@ -0,0 +1,81 @@
+import { createRequire } from "node:module";
+import { deepCyclicCopy } from "jest-util";
+
+//#region rolldown:runtime
+var __require = /* @__PURE__ */ createRequire(import.meta.url);
+
+//#endregion
+//#region src/legacy-code-todo-rewrite/jestAdapter.ts
+const FRAMEWORK_INITIALIZER = __require.resolve("./jestAdapterInit");
+const jestAdapter = async (globalConfig, config, environment, runtime, testPath, sendMessageToJest) => {
+	const { initialize, runAndTransformResultsToJestFormat } = runtime.requireInternalModule(FRAMEWORK_INITIALIZER);
+	const { globals, snapshotState } = await initialize({
+		config,
+		environment,
+		globalConfig,
+		localRequire: runtime.requireModule.bind(runtime),
+		parentProcess: process,
+		runtime,
+		sendMessageToJest,
+		setGlobalsForRuntime: runtime.setGlobalsForRuntime.bind(runtime),
+		testPath
+	});
+	if (config.fakeTimers.enableGlobally) if (config.fakeTimers.legacyFakeTimers) environment.fakeTimers.useFakeTimers();
+	else environment.fakeTimersModern.useFakeTimers();
+	globals.beforeEach(() => {
+		if (config.resetModules) runtime.resetModules();
+		if (config.clearMocks) runtime.clearAllMocks();
+		if (config.resetMocks) {
+			runtime.resetAllMocks();
+			if (config.fakeTimers.enableGlobally && config.fakeTimers.legacyFakeTimers) environment.fakeTimers.useFakeTimers();
+		}
+		if (config.restoreMocks) runtime.restoreAllMocks();
+	});
+	const setupAfterEnvStart = Date.now();
+	for (const path of config.setupFilesAfterEnv) {
+		const esm$1 = runtime.unstable_shouldLoadAsEsm(path);
+		if (esm$1) await runtime.unstable_importModule(path);
+		else {
+			const setupFile = runtime.requireModule(path);
+			if (typeof setupFile === "function") await setupFile();
+		}
+	}
+	const setupAfterEnvEnd = Date.now();
+	const esm = runtime.unstable_shouldLoadAsEsm(testPath);
+	if (esm) await runtime.unstable_importModule(testPath);
+	else runtime.requireModule(testPath);
+	const setupAfterEnvPerfStats = {
+		setupAfterEnvEnd,
+		setupAfterEnvStart
+	};
+	const results = await runAndTransformResultsToJestFormat({
+		config,
+		globalConfig,
+		setupAfterEnvPerfStats,
+		testPath
+	});
+	_addSnapshotData(results, snapshotState);
+	return deepCyclicCopy(results, { keepPrototype: false });
+};
+const _addSnapshotData = (results, snapshotState) => {
+	for (const { fullName, status: status$1, failing } of results.testResults) if (status$1 === "pending" || status$1 === "failed" || failing && status$1 === "passed") snapshotState.markSnapshotsAsCheckedForTest(fullName);
+	const uncheckedCount = snapshotState.getUncheckedCount();
+	const uncheckedKeys = snapshotState.getUncheckedKeys();
+	if (uncheckedCount) snapshotState.removeUncheckedKeys();
+	const status = snapshotState.save();
+	results.snapshot.fileDeleted = status.deleted;
+	results.snapshot.added = snapshotState.added;
+	results.snapshot.matched = snapshotState.matched;
+	results.snapshot.unmatched = snapshotState.unmatched;
+	results.snapshot.updated = snapshotState.updated;
+	results.snapshot.unchecked = status.deleted ? 0 : uncheckedCount;
+	results.snapshot.uncheckedKeys = [...uncheckedKeys];
+};
+var jestAdapter_default = jestAdapter;
+
+//#endregion
+//#region src/runner.ts
+var runner_default = jestAdapter_default;
+
+//#endregion
+export { runner_default as default };