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/core/build/index.d.mts

@@ -0,0 +1,82 @@
+import { BaseReporter, Reporter, ReporterContext } from "@jest/reporters";
+import { AggregatedResult, Test, TestContext } from "@jest/test-result";
+import { TestWatcher } from "jest-watcher";
+import { ChangedFiles } from "jest-changed-files";
+import { TestPathPatternsExecutor } from "@jest/pattern";
+import { Config } from "@jest/types";
+import { TestRunnerContext } from "jest-runner";
+
+//#region src/types.d.ts
+type Stats = {
+  roots: number;
+  testMatch: number;
+  testPathIgnorePatterns: number;
+  testRegex: number;
+  testPathPatterns?: number;
+};
+type Filter = (testPaths: Array<string>) => Promise<{
+  filtered: Array<string>;
+}>;
+//#endregion
+//#region src/SearchSource.d.ts
+type SearchResult = {
+  noSCM?: boolean;
+  stats?: Stats;
+  collectCoverageFrom?: Set<string>;
+  tests: Array<Test>;
+  total?: number;
+};
+declare class SearchSource {
+  private readonly _context;
+  private _dependencyResolver;
+  private readonly _testPathCases;
+  constructor(context: TestContext);
+  private _getOrBuildDependencyResolver;
+  private _filterTestPathsWithStats;
+  private _getAllTestPaths;
+  isTestFilePath(path: string): boolean;
+  findMatchingTests(testPathPatternsExecutor: TestPathPatternsExecutor): SearchResult;
+  findRelatedTests(allPaths: Set<string>, collectCoverage: boolean): Promise<SearchResult>;
+  findTestsByPaths(paths: Array<string>): SearchResult;
+  findRelatedTestsFromPattern(paths: Array<string>, collectCoverage: boolean): Promise<SearchResult>;
+  findTestRelatedToChangedFiles(changedFilesInfo: ChangedFiles, collectCoverage: boolean): Promise<SearchResult>;
+  private _getTestPaths;
+  filterPathsWin32(paths: Array<string>): Array<string>;
+  getTestPaths(globalConfig: Config.GlobalConfig, projectConfig: Config.ProjectConfig, changedFiles?: ChangedFiles, filter?: Filter): Promise<SearchResult>;
+  findRelatedSourcesFromTestsInChangedFiles(changedFilesInfo: ChangedFiles): Promise<Array<string>>;
+}
+//#endregion
+//#region src/TestScheduler.d.ts
+type ReporterConstructor = new (globalConfig: Config.GlobalConfig, reporterConfig: Record<string, unknown>, reporterContext: ReporterContext) => BaseReporter;
+type TestSchedulerContext = ReporterContext & TestRunnerContext;
+declare function createTestScheduler(globalConfig: Config.GlobalConfig, context: TestSchedulerContext): Promise<TestScheduler>;
+declare class TestScheduler {
+  private readonly _context;
+  private readonly _dispatcher;
+  private readonly _globalConfig;
+  constructor(globalConfig: Config.GlobalConfig, context: TestSchedulerContext);
+  addReporter(reporter: Reporter): void;
+  removeReporter(reporterConstructor: ReporterConstructor): void;
+  scheduleTests(tests: Array<Test>, watcher: TestWatcher): Promise<AggregatedResult>;
+  private _partitionTests;
+  _setupReporters(): Promise<void>;
+  private _addCustomReporter;
+  private _bailIfNeeded;
+}
+//#endregion
+//#region src/cli/index.d.ts
+declare function runCLI(argv: Config.Argv, projects: Array<string>): Promise<{
+  results: AggregatedResult;
+  globalConfig: Config.GlobalConfig;
+}>;
+//#endregion
+//#region src/version.d.ts
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+declare function getVersion(): string;
+//#endregion
+export { SearchSource, createTestScheduler, getVersion, runCLI };

frontend/node_modules/@jest/core/build/index.d.ts

@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import {TestPathPatternsExecutor} from '@jest/pattern';
+import {BaseReporter, Reporter, ReporterContext} from '@jest/reporters';
+import {AggregatedResult, Test, TestContext} from '@jest/test-result';
+import {Config} from '@jest/types';
+import {ChangedFiles} from 'jest-changed-files';
+import {TestRunnerContext} from 'jest-runner';
+import {TestWatcher} from 'jest-watcher';
+
+export declare function createTestScheduler(
+  globalConfig: Config.GlobalConfig,
+  context: TestSchedulerContext,
+): Promise<TestScheduler>;
+
+declare type Filter = (testPaths: Array<string>) => Promise<{
+  filtered: Array<string>;
+}>;
+
+export declare function getVersion(): string;
+
+declare type ReporterConstructor = new (
+  globalConfig: Config.GlobalConfig,
+  reporterConfig: Record<string, unknown>,
+  reporterContext: ReporterContext,
+) => BaseReporter;
+
+export declare function runCLI(
+  argv: Config.Argv,
+  projects: Array<string>,
+): Promise<{
+  results: AggregatedResult;
+  globalConfig: Config.GlobalConfig;
+}>;
+
+declare type SearchResult = {
+  noSCM?: boolean;
+  stats?: Stats;
+  collectCoverageFrom?: Set<string>;
+  tests: Array<Test>;
+  total?: number;
+};
+
+export declare class SearchSource {
+  private readonly _context;
+  private _dependencyResolver;
+  private readonly _testPathCases;
+  constructor(context: TestContext);
+  private _getOrBuildDependencyResolver;
+  private _filterTestPathsWithStats;
+  private _getAllTestPaths;
+  isTestFilePath(path: string): boolean;
+  findMatchingTests(
+    testPathPatternsExecutor: TestPathPatternsExecutor,
+  ): SearchResult;
+  findRelatedTests(
+    allPaths: Set<string>,
+    collectCoverage: boolean,
+  ): Promise<SearchResult>;
+  findTestsByPaths(paths: Array<string>): SearchResult;
+  findRelatedTestsFromPattern(
+    paths: Array<string>,
+    collectCoverage: boolean,
+  ): Promise<SearchResult>;
+  findTestRelatedToChangedFiles(
+    changedFilesInfo: ChangedFiles,
+    collectCoverage: boolean,
+  ): Promise<SearchResult>;
+  private _getTestPaths;
+  filterPathsWin32(paths: Array<string>): Array<string>;
+  getTestPaths(
+    globalConfig: Config.GlobalConfig,
+    projectConfig: Config.ProjectConfig,
+    changedFiles?: ChangedFiles,
+    filter?: Filter,
+  ): Promise<SearchResult>;
+  findRelatedSourcesFromTestsInChangedFiles(
+    changedFilesInfo: ChangedFiles,
+  ): Promise<Array<string>>;
+}
+
+declare type Stats = {
+  roots: number;
+  testMatch: number;
+  testPathIgnorePatterns: number;
+  testRegex: number;
+  testPathPatterns?: number;
+};
+
+declare class TestScheduler {
+  private readonly _context;
+  private readonly _dispatcher;
+  private readonly _globalConfig;
+  constructor(globalConfig: Config.GlobalConfig, context: TestSchedulerContext);
+  addReporter(reporter: Reporter): void;
+  removeReporter(reporterConstructor: ReporterConstructor): void;
+  scheduleTests(
+    tests: Array<Test>,
+    watcher: TestWatcher,
+  ): Promise<AggregatedResult>;
+  private _partitionTests;
+  _setupReporters(): Promise<void>;
+  private _addCustomReporter;
+  private _bailIfNeeded;
+}
+
+declare type TestSchedulerContext = ReporterContext & TestRunnerContext;
+
+export {};

frontend/node_modules/@jest/core/build/index.mjs

@@ -0,0 +1,6 @@
+import cjsModule from './index.js';
+
+export const SearchSource = cjsModule.SearchSource;
+export const createTestScheduler = cjsModule.createTestScheduler;
+export const getVersion = cjsModule.getVersion;
+export const runCLI = cjsModule.runCLI;