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/fast-glob/out/utils/index.d.ts

@@ -0,0 +1,8 @@
+import * as array from './array';
+import * as errno from './errno';
+import * as fs from './fs';
+import * as path from './path';
+import * as pattern from './pattern';
+import * as stream from './stream';
+import * as string from './string';
+export { array, errno, fs, path, pattern, stream, string };