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/providers/provider.d.ts

@@ -0,0 +1,19 @@
+import { Task } from '../managers/tasks';
+import Settings from '../settings';
+import { MicromatchOptions, ReaderOptions } from '../types';
+import DeepFilter from './filters/deep';
+import EntryFilter from './filters/entry';
+import ErrorFilter from './filters/error';
+import EntryTransformer from './transformers/entry';
+export default abstract class Provider<T> {
+    protected readonly _settings: Settings;
+    readonly errorFilter: ErrorFilter;
+    readonly entryFilter: EntryFilter;
+    readonly deepFilter: DeepFilter;
+    readonly entryTransformer: EntryTransformer;
+    constructor(_settings: Settings);
+    abstract read(_task: Task): T;
+    protected _getRootDirectory(task: Task): string;
+    protected _getReaderOptions(task: Task): ReaderOptions;
+    protected _getMicromatchOptions(): MicromatchOptions;
+}