feat: starting of manager API work.

lib/backend/api/manager_api.dart

@@ -1 +1,10 @@
+import 'dart:io';
+import 'package:permission_handler/permission_handler.dart';
+import 'package:path_provider/path_provider.dart' as p;
 
+// use path_provider to get the path of the storage directory
+
+void getPath() async {
+  final path = await p.getExternalStorageDirectory();
+  print(path);
+}