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/pure-rand/lib/generator/XoroShiro.js

@@ -0,0 +1,72 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.xoroshiro128plus = void 0;
+var XoroShiro128Plus = (function () {
+    function XoroShiro128Plus(s01, s00, s11, s10) {
+        this.s01 = s01;
+        this.s00 = s00;
+        this.s11 = s11;
+        this.s10 = s10;
+    }
+    XoroShiro128Plus.prototype.clone = function () {
+        return new XoroShiro128Plus(this.s01, this.s00, this.s11, this.s10);
+    };
+    XoroShiro128Plus.prototype.next = function () {
+        var nextRng = new XoroShiro128Plus(this.s01, this.s00, this.s11, this.s10);
+        var out = nextRng.unsafeNext();
+        return [out, nextRng];
+    };
+    XoroShiro128Plus.prototype.unsafeNext = function () {
+        var out = (this.s00 + this.s10) | 0;
+        var a0 = this.s10 ^ this.s00;
+        var a1 = this.s11 ^ this.s01;
+        var s00 = this.s00;
+        var s01 = this.s01;
+        this.s00 = (s00 << 24) ^ (s01 >>> 8) ^ a0 ^ (a0 << 16);
+        this.s01 = (s01 << 24) ^ (s00 >>> 8) ^ a1 ^ ((a1 << 16) | (a0 >>> 16));
+        this.s10 = (a1 << 5) ^ (a0 >>> 27);
+        this.s11 = (a0 << 5) ^ (a1 >>> 27);
+        return out;
+    };
+    XoroShiro128Plus.prototype.jump = function () {
+        var nextRng = new XoroShiro128Plus(this.s01, this.s00, this.s11, this.s10);
+        nextRng.unsafeJump();
+        return nextRng;
+    };
+    XoroShiro128Plus.prototype.unsafeJump = function () {
+        var ns01 = 0;
+        var ns00 = 0;
+        var ns11 = 0;
+        var ns10 = 0;
+        var jump = [0xd8f554a5, 0xdf900294, 0x4b3201fc, 0x170865df];
+        for (var i = 0; i !== 4; ++i) {
+            for (var mask = 1; mask; mask <<= 1) {
+                if (jump[i] & mask) {
+                    ns01 ^= this.s01;
+                    ns00 ^= this.s00;
+                    ns11 ^= this.s11;
+                    ns10 ^= this.s10;
+                }
+                this.unsafeNext();
+            }
+        }
+        this.s01 = ns01;
+        this.s00 = ns00;
+        this.s11 = ns11;
+        this.s10 = ns10;
+    };
+    XoroShiro128Plus.prototype.getState = function () {
+        return [this.s01, this.s00, this.s11, this.s10];
+    };
+    return XoroShiro128Plus;
+}());
+function fromState(state) {
+    var valid = state.length === 4;
+    if (!valid) {
+        throw new Error('The state must have been produced by a xoroshiro128plus RandomGenerator');
+    }
+    return new XoroShiro128Plus(state[0], state[1], state[2], state[3]);
+}
+exports.xoroshiro128plus = Object.assign(function (seed) {
+    return new XoroShiro128Plus(-1, ~seed, seed | 0, 0);
+}, { fromState: fromState });