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/fingerprint.js

@@ -0,0 +1,23 @@
+/**
+ * @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 Fingerprint = createLucideIcon("Fingerprint", [
+  ["path", { d: "M2 12C2 6.5 6.5 2 12 2a10 10 0 0 1 8 4", key: "1jc9o5" }],
+  ["path", { d: "M5 19.5C5.5 18 6 15 6 12c0-.7.12-1.37.34-2", key: "1mxgy1" }],
+  ["path", { d: "M17.29 21.02c.12-.6.43-2.3.5-3.02", key: "ptglia" }],
+  ["path", { d: "M12 10a2 2 0 0 0-2 2c0 1.02-.1 2.51-.26 4", key: "1nerag" }],
+  ["path", { d: "M8.65 22c.21-.66.45-1.32.57-2", key: "13wd9y" }],
+  ["path", { d: "M14 13.12c0 2.38 0 6.38-1 8.88", key: "o46ks0" }],
+  ["path", { d: "M2 16h.01", key: "1gqxmh" }],
+  ["path", { d: "M21.8 16c.2-2 .131-5.354 0-6", key: "drycrb" }],
+  ["path", { d: "M9 6.8a6 6 0 0 1 9 5.2c0 .47 0 1.17-.02 2", key: "1fgabc" }]
+]);
+
+export { Fingerprint as default };
+//# sourceMappingURL=fingerprint.js.map