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/entities/dist/esm/generated/decode-data-html.d.ts

@@ -0,0 +1,2 @@
+export declare const htmlDecodeTree: Uint16Array;
+//# sourceMappingURL=decode-data-html.d.ts.map

frontend/node_modules/entities/dist/esm/generated/decode-data-html.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"decode-data-html.d.ts","sourceRoot":"","sources":["../../../src/generated/decode-data-html.ts"],"names":[],"mappings":"AAEA,eAAO,MAAM,cAAc,EAAE,WAK5B,CAAC"}

frontend/node_modules/entities/dist/esm/generated/decode-data-html.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"decode-data-html.js","sourceRoot":"","sources":["../../../src/generated/decode-data-html.ts"],"names":[],"mappings":"AAAA,8CAA8C;AAE9C,MAAM,CAAC,MAAM,cAAc,GAAgB,eAAe,CAAC,IAAI,WAAW;AACtE,kBAAkB;AAClB,eAAe,CAAC,268CAA268C;KACt78C,KAAK,CAAC,EAAE,CAAC;KACT,GAAG,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,CACnC,CAAC"}

frontend/node_modules/entities/dist/esm/generated/decode-data-xml.d.ts

@@ -0,0 +1,2 @@
+export declare const xmlDecodeTree: Uint16Array;
+//# sourceMappingURL=decode-data-xml.d.ts.map

frontend/node_modules/entities/dist/esm/generated/decode-data-xml.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"decode-data-xml.d.ts","sourceRoot":"","sources":["../../../src/generated/decode-data-xml.ts"],"names":[],"mappings":"AAEA,eAAO,MAAM,aAAa,EAAE,WAK3B,CAAC"}

frontend/node_modules/entities/dist/esm/generated/decode-data-xml.js

@@ -0,0 +1,7 @@
+// Generated using scripts/write-decode-map.ts
+export const xmlDecodeTree = /* #__PURE__ */ new Uint16Array(
+// prettier-ignore
+/* #__PURE__ */ "\u0200aglq\t\x15\x18\x1b\u026d\x0f\0\0\x12p;\u4026os;\u4027t;\u403et;\u403cuot;\u4022"
+    .split("")
+    .map((c) => c.charCodeAt(0)));
+//# sourceMappingURL=decode-data-xml.js.map

frontend/node_modules/entities/dist/esm/generated/decode-data-xml.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"decode-data-xml.js","sourceRoot":"","sources":["../../../src/generated/decode-data-xml.ts"],"names":[],"mappings":"AAAA,8CAA8C;AAE9C,MAAM,CAAC,MAAM,aAAa,GAAgB,eAAe,CAAC,IAAI,WAAW;AACrE,kBAAkB;AAClB,eAAe,CAAC,uFAAuF;KAClG,KAAK,CAAC,EAAE,CAAC;KACT,GAAG,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,CACnC,CAAC"}

frontend/node_modules/entities/dist/esm/generated/encode-html.d.ts

@@ -0,0 +1,8 @@
+type EncodeTrieNode = string | {
+    v?: string;
+    n: number | Map<number, EncodeTrieNode>;
+    o?: string;
+};
+export declare const htmlTrie: Map<number, EncodeTrieNode>;
+export {};
+//# sourceMappingURL=encode-html.d.ts.map

frontend/node_modules/entities/dist/esm/generated/encode-html.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"encode-html.d.ts","sourceRoot":"","sources":["../../../src/generated/encode-html.ts"],"names":[],"mappings":"AAEA,KAAK,cAAc,GACb,MAAM,GACN;IAAE,CAAC,CAAC,EAAE,MAAM,CAAC;IAAC,CAAC,EAAE,MAAM,GAAG,GAAG,CAAC,MAAM,EAAE,cAAc,CAAC,CAAC;IAAC,CAAC,CAAC,EAAE,MAAM,CAAA;CAAE,CAAC;AAY1E,eAAO,MAAM,QAAQ,EAAE,GAAG,CAAC,MAAM,EAAC,cAAc,CAAwhuB,CAAC"}