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/ts-jest/dist/legacy/config/config-set.d.ts

@@ -0,0 +1,36 @@
+import { Logger } from 'bs-logger';
+import type * as ts from 'typescript';
+import type { TsConfigCompilerOptionsJson } from '../../config/types';
+import type { RawCompilerOptions } from '../../raw-compiler-options';
+import type { TsJestAstTransformer, TsJestTransformOptions, TTypeScript } from '../../types';
+export declare class ConfigSet {
+    readonly parentLogger?: Logger | undefined;
+    /**
+     * Use by e2e, don't mark as internal
+     */
+    readonly tsJestDigest: string;
+    readonly logger: Logger;
+    readonly compilerModule: TTypeScript;
+    readonly isolatedModules: boolean;
+    readonly cwd: string;
+    readonly rootDir: string;
+    cacheSuffix: string;
+    tsCacheDir: string | undefined;
+    parsedTsConfig: ts.ParsedCommandLine | Record<string, any>;
+    resolvedTransformers: TsJestAstTransformer;
+    useESM: boolean;
+    constructor(jestConfig: TsJestTransformOptions['config'] | undefined, parentLogger?: Logger | undefined);
+    /**
+     * Load TypeScript configuration. Returns the parsed TypeScript config and any `tsconfig` options specified in ts-jest
+     * Subclasses which extend `ConfigSet` can override the default behavior
+     */
+    protected _resolveTsConfig(compilerOptions?: RawCompilerOptions | TsConfigCompilerOptionsJson, resolvedConfigFile?: string): Record<string, any>;
+    isTestFile(fileName: string): boolean;
+    shouldStringifyContent(filePath: string): boolean;
+    raiseDiagnostics(diagnostics: ts.Diagnostic[], filePath?: string, logger?: Logger): void;
+    shouldReportDiagnostics(filePath: string): boolean;
+    resolvePath(inputPath: string, { throwIfMissing, nodeResolve }?: {
+        throwIfMissing?: boolean;
+        nodeResolve?: boolean;
+    }): string;
+}