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/globe-2.js

@@ -0,0 +1,27 @@
+/**
+ * @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 Globe2 = createLucideIcon("Globe2", [
+  ["path", { d: "M21.54 15H17a2 2 0 0 0-2 2v4.54", key: "1djwo0" }],
+  [
+    "path",
+    {
+      d: "M7 3.34V5a3 3 0 0 0 3 3v0a2 2 0 0 1 2 2v0c0 1.1.9 2 2 2v0a2 2 0 0 0 2-2v0c0-1.1.9-2 2-2h3.17",
+      key: "1fi5u6"
+    }
+  ],
+  [
+    "path",
+    { d: "M11 21.95V18a2 2 0 0 0-2-2v0a2 2 0 0 1-2-2v-1a2 2 0 0 0-2-2H2.05", key: "xsiumc" }
+  ],
+  ["circle", { cx: "12", cy: "12", r: "10", key: "1mglay" }]
+]);
+
+export { Globe2 as default };
+//# sourceMappingURL=globe-2.js.map