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/napi-postinstall/lib/fallback.js

@@ -0,0 +1,74 @@
+"use strict";
+const node_child_process_1 = require("node:child_process");
+const fs = require("node:fs");
+const os = require("node:os");
+const path = require("node:path");
+const constants_js_1 = require("./constants.js");
+const helpers_js_1 = require("./helpers.js");
+const EXECUTORS = {
+    npm: 'npx',
+    pnpm: 'pnpm',
+    yarn: 'yarn',
+    bun: 'bun',
+    deno: (args) => ['deno', 'run', `npm:${args[0]}`, ...args.slice(1)],
+};
+function constructCommand(value, args) {
+    const list = typeof value === 'function'
+        ? value(args)
+        :
+            [].concat(value, args);
+    return {
+        command: list[0],
+        args: list.slice(1),
+    };
+}
+function fallback(packageJsonPath, checkVersion) {
+    const packageJson = require(packageJsonPath);
+    const { name, version: pkgVersion, optionalDependencies } = packageJson;
+    const { napi, version = pkgVersion } = (0, helpers_js_1.getNapiInfoFromPackageJson)(packageJson, checkVersion);
+    if (checkVersion && pkgVersion !== version) {
+        throw new Error((0, helpers_js_1.errorMessage)(`Inconsistent package versions found for \`${name}\` v${pkgVersion} vs \`${napi.packageName}\` v${version}.`));
+    }
+    if (process.versions.webcontainer) {
+        const bindingPkgName = `${napi.packageName}-${constants_js_1.WASM32_WASI}`;
+        if (!optionalDependencies?.[bindingPkgName]) {
+            throw new Error((0, helpers_js_1.errorMessage)(`\`${constants_js_1.WASM32_WASI}\` target is unavailable for \`${name}\` v${version}`));
+        }
+        const baseDir = path.resolve(os.tmpdir(), `${name}-${version}`);
+        const bindingEntry = path.resolve(baseDir, `node_modules/${bindingPkgName}/${napi.binaryName}.wasi.cjs`);
+        if (!fs.existsSync(bindingEntry)) {
+            fs.rmSync(baseDir, { recursive: true, force: true });
+            fs.mkdirSync(baseDir, { recursive: true });
+            const bindingPkg = `${bindingPkgName}@${version}`;
+            console.log((0, helpers_js_1.errorMessage)(`Downloading \`${bindingPkg}\` on WebContainer...`));
+            (0, node_child_process_1.execFileSync)('pnpm', ['i', bindingPkg], {
+                cwd: baseDir,
+                stdio: 'inherit',
+            });
+        }
+        return require(bindingEntry);
+    }
+    const userAgent = ((process.env.npm_config_user_agent || '').split('/')[0] ||
+        'npm');
+    const executor = EXECUTORS[userAgent];
+    if (!executor) {
+        throw new Error((0, helpers_js_1.errorMessage)(`Unsupported package manager: ${userAgent}. Supported managers are: ${Object.keys(EXECUTORS).join(', ')}.`));
+    }
+    const { command, args } = constructCommand(executor, [
+        'napi-postinstall',
+        name,
+        version,
+        checkVersion ? '1' : '0',
+    ]);
+    const pkgDir = path.dirname(packageJsonPath);
+    (0, node_child_process_1.execFileSync)(command, args, {
+        cwd: pkgDir,
+        stdio: 'inherit',
+    });
+    process.env[`SKIP_${name.replace(/-/g, '_').toUpperCase()}_FALLBACK`] = '1';
+    const PKG_RESOLVED_PATH = require.resolve(pkgDir);
+    delete require.cache[PKG_RESOLVED_PATH];
+    return require(pkgDir);
+}
+module.exports = fallback;
+//# sourceMappingURL=fallback.js.map