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-resolve-dependencies/build/index.d.mts

@@ -0,0 +1,25 @@
+import { SnapshotResolver } from "jest-snapshot";
+import { IHasteFS } from "jest-haste-map";
+import Resolver, { ResolveModuleConfig } from "jest-resolve";
+
+//#region src/index.d.ts
+
+type ResolvedModule = {
+  file: string;
+  dependencies: Array<string>;
+};
+/**
+ * DependencyResolver is used to resolve the direct dependencies of a module or
+ * to retrieve a list of all transitive inverse dependencies.
+ */
+declare class DependencyResolver {
+  private readonly _hasteFS;
+  private readonly _resolver;
+  private readonly _snapshotResolver;
+  constructor(resolver: Resolver, hasteFS: IHasteFS, snapshotResolver: SnapshotResolver);
+  resolve(file: string, options?: ResolveModuleConfig): Array<string>;
+  resolveInverseModuleMap(paths: Set<string>, filter: (file: string) => boolean, options?: ResolveModuleConfig): Array<ResolvedModule>;
+  resolveInverse(paths: Set<string>, filter: (file: string) => boolean, options?: ResolveModuleConfig): Array<string>;
+}
+//#endregion
+export { DependencyResolver, ResolvedModule };