feat: implement folder list view with navigation and playback

- Add folder browsing functionality with breadcrumb navigation
- Implement folder playback with recursive song scanning and progress notifications
- Add browser history support for back/forward button navigation
- Include empty folder detection and loading states

src/renderer/features/folders/routes/folder-list-route.tsx

@@ -0,0 +1,32 @@
+import type { AgGridReact as AgGridReactType } from '@ag-grid-community/react/lib/agGridReact';
+
+import { useMemo, useRef } from 'react';
+
+import { VirtualInfiniteGridRef } from '/@/renderer/components/virtual-grid/virtual-infinite-grid';
+import { ListContext } from '/@/renderer/context/list-context';
+import { FolderListContent } from '/@/renderer/features/folders/components/folder-list-content';
+import { FolderListHeader } from '/@/renderer/features/folders/components/folder-list-header';
+import { AnimatedPage } from '/@/renderer/features/shared/components/animated-page';
+
+const FolderListRoute = () => {
+    const gridRef = useRef<null | VirtualInfiniteGridRef>(null);
+    const tableRef = useRef<AgGridReactType | null>(null);
+    const pageKey = 'folder';
+
+    const providerValue = useMemo(() => {
+        return {
+            pageKey,
+        };
+    }, []);
+
+    return (
+        <AnimatedPage>
+            <ListContext.Provider value={providerValue}>
+                <FolderListHeader />
+                <FolderListContent gridRef={gridRef} itemCount={undefined} tableRef={tableRef} />
+            </ListContext.Provider>
+        </AnimatedPage>
+    );
+};
+
+export default FolderListRoute;