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/@testing-library/user-event/dist/esm/keyboard/parseKeyDef.js

@@ -0,0 +1,43 @@
+import '../utils/dataTransfer/Clipboard.js';
+import { readNextDescriptor } from '../utils/keyDef/readNextDescriptor.js';
+
+/**
+ * Parse key definitions per `keyboardMap`
+ *
+ * Keys can be referenced by `{key}` or `{special}` as well as physical locations per `[code]`.
+ * Everything else will be interpreted as a typed character - e.g. `a`.
+ * Brackets `{` and `[` can be escaped by doubling - e.g. `foo[[bar` translates to `foo[bar`.
+ * Keeping the key pressed can be written as `{key>}`.
+ * When keeping the key pressed you can choose how long (how many keydown and keypress) the key is pressed `{key>3}`.
+ * You can then release the key per `{key>3/}` or keep it pressed and continue with the next key.
+ */ function parseKeyDef(keyboardMap, text) {
+    const defs = [];
+    do {
+        const { type, descriptor, consumedLength, releasePrevious, releaseSelf = true, repeat } = readNextDescriptor(text, 'keyboard');
+        var _keyboardMap_find;
+        const keyDef = (_keyboardMap_find = keyboardMap.find((def)=>{
+            if (type === '[') {
+                var _def_code;
+                return ((_def_code = def.code) === null || _def_code === undefined ? undefined : _def_code.toLowerCase()) === descriptor.toLowerCase();
+            } else if (type === '{') {
+                var _def_key;
+                return ((_def_key = def.key) === null || _def_key === undefined ? undefined : _def_key.toLowerCase()) === descriptor.toLowerCase();
+            }
+            return def.key === descriptor;
+        })) !== null && _keyboardMap_find !== undefined ? _keyboardMap_find : {
+            key: 'Unknown',
+            code: 'Unknown',
+            [type === '[' ? 'code' : 'key']: descriptor
+        };
+        defs.push({
+            keyDef,
+            releasePrevious,
+            releaseSelf,
+            repeat
+        });
+        text = text.slice(consumedLength);
+    }while (text)
+    return defs;
+}
+
+export { parseKeyDef };