feat(frontend): add API client, layout, and routing

- Create Axios-based API client with sources, jobs, and dashboard endpoints
- Add responsive Layout component with navigation sidebar
- Set up React Router with Dashboard, Backups, and Settings routes
- Configure TanStack Query provider with default options
- Use lucide-react for navigation icons

frontend/node_modules/ws/index.js

@@ -0,0 +1,22 @@
+'use strict';
+
+const createWebSocketStream = require('./lib/stream');
+const extension = require('./lib/extension');
+const PerMessageDeflate = require('./lib/permessage-deflate');
+const Receiver = require('./lib/receiver');
+const Sender = require('./lib/sender');
+const subprotocol = require('./lib/subprotocol');
+const WebSocket = require('./lib/websocket');
+const WebSocketServer = require('./lib/websocket-server');
+
+WebSocket.createWebSocketStream = createWebSocketStream;
+WebSocket.extension = extension;
+WebSocket.PerMessageDeflate = PerMessageDeflate;
+WebSocket.Receiver = Receiver;
+WebSocket.Sender = Sender;
+WebSocket.Server = WebSocketServer;
+WebSocket.subprotocol = subprotocol;
+WebSocket.WebSocket = WebSocket;
+WebSocket.WebSocketServer = WebSocketServer;
+
+module.exports = WebSocket;