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/dom-accessibility-api/dist/util.js

@@ -0,0 +1,103 @@
+"use strict";
+
+function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
+exports.__esModule = true;
+exports.hasAnyConcreteRoles = hasAnyConcreteRoles;
+exports.isElement = isElement;
+exports.isHTMLFieldSetElement = isHTMLFieldSetElement;
+exports.isHTMLInputElement = isHTMLInputElement;
+exports.isHTMLLegendElement = isHTMLLegendElement;
+exports.isHTMLOptGroupElement = isHTMLOptGroupElement;
+exports.isHTMLSelectElement = isHTMLSelectElement;
+exports.isHTMLSlotElement = isHTMLSlotElement;
+exports.isHTMLTableCaptionElement = isHTMLTableCaptionElement;
+exports.isHTMLTableElement = isHTMLTableElement;
+exports.isHTMLTextAreaElement = isHTMLTextAreaElement;
+exports.isSVGElement = isSVGElement;
+exports.isSVGSVGElement = isSVGSVGElement;
+exports.isSVGTitleElement = isSVGTitleElement;
+exports.queryIdRefs = queryIdRefs;
+exports.safeWindow = safeWindow;
+var _getRole = _interopRequireWildcard(require("./getRole"));
+exports.getLocalName = _getRole.getLocalName;
+function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
+function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+function isElement(node) {
+  return node !== null && node.nodeType === node.ELEMENT_NODE;
+}
+function isHTMLTableCaptionElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "caption";
+}
+function isHTMLInputElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "input";
+}
+function isHTMLOptGroupElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "optgroup";
+}
+function isHTMLSelectElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "select";
+}
+function isHTMLTableElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "table";
+}
+function isHTMLTextAreaElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "textarea";
+}
+function safeWindow(node) {
+  var _ref = node.ownerDocument === null ? node : node.ownerDocument,
+    defaultView = _ref.defaultView;
+  if (defaultView === null) {
+    throw new TypeError("no window available");
+  }
+  return defaultView;
+}
+function isHTMLFieldSetElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "fieldset";
+}
+function isHTMLLegendElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "legend";
+}
+function isHTMLSlotElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "slot";
+}
+function isSVGElement(node) {
+  return isElement(node) && node.ownerSVGElement !== undefined;
+}
+function isSVGSVGElement(node) {
+  return isElement(node) && (0, _getRole.getLocalName)(node) === "svg";
+}
+function isSVGTitleElement(node) {
+  return isSVGElement(node) && (0, _getRole.getLocalName)(node) === "title";
+}
+
+/**
+ *
+ * @param {Node} node -
+ * @param {string} attributeName -
+ * @returns {Element[]} -
+ */
+function queryIdRefs(node, attributeName) {
+  if (isElement(node) && node.hasAttribute(attributeName)) {
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion -- safe due to hasAttribute check
+    var ids = node.getAttribute(attributeName).split(" ");
+
+    // Browsers that don't support shadow DOM won't have getRootNode
+    var root = node.getRootNode ? node.getRootNode() : node.ownerDocument;
+    return ids.map(function (id) {
+      return root.getElementById(id);
+    }).filter(function (element) {
+      return element !== null;
+    }
+    // TODO: why does this not narrow?
+    );
+  }
+
+  return [];
+}
+function hasAnyConcreteRoles(node, roles) {
+  if (isElement(node)) {
+    return roles.indexOf((0, _getRole.default)(node)) !== -1;
+  }
+  return false;
+}
+//# sourceMappingURL=util.js.map