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/readers/stream.d.ts

@@ -0,0 +1,14 @@
+/// <reference types="node" />
+import { Readable } from 'stream';
+import * as fsStat from '@nodelib/fs.stat';
+import * as fsWalk from '@nodelib/fs.walk';
+import { Pattern, ReaderOptions } from '../types';
+import Reader from './reader';
+export default class ReaderStream extends Reader<Readable> {
+    protected _walkStream: typeof fsWalk.walkStream;
+    protected _stat: typeof fsStat.stat;
+    dynamic(root: string, options: ReaderOptions): Readable;
+    static(patterns: Pattern[], options: ReaderOptions): Readable;
+    private _getEntry;
+    private _getStat;
+}