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/lucide-react/dist/esm/icons/cctv.js

@@ -0,0 +1,25 @@
+/**
+ * @license lucide-react v0.303.0 - ISC
+ *
+ * This source code is licensed under the ISC license.
+ * See the LICENSE file in the root directory of this source tree.
+ */
+
+import createLucideIcon from '../createLucideIcon.js';
+
+const Cctv = createLucideIcon("Cctv", [
+  ["path", { d: "M7 9h.01", key: "19b3jx" }],
+  ["path", { d: "M16.75 12H22l-3.5 7-3.09-4.32", key: "1h9vqe" }],
+  [
+    "path",
+    {
+      d: "M18 9.5l-4 8-10.39-5.2a2.92 2.92 0 0 1-1.3-3.91L3.69 5.6a2.92 2.92 0 0 1 3.92-1.3Z",
+      key: "q5d122"
+    }
+  ],
+  ["path", { d: "M2 19h3.76a2 2 0 0 0 1.8-1.1L9 15", key: "19bib8" }],
+  ["path", { d: "M2 21v-4", key: "l40lih" }]
+]);
+
+export { Cctv as default };
+//# sourceMappingURL=cctv.js.map