connected all apis , create functionality is working

lib/features/scene/widgets/alert_dialogs/alert_dialog_countdown.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:syncrow_app/features/scene/bloc/create_scene/create_scene_bloc.dart';
+
+class AlertDialogCountdown extends StatefulWidget {
+  const AlertDialogCountdown({super.key, required this.durationValue});
+
+  final int durationValue;
+
+  @override
+  State<AlertDialogCountdown> createState() => _AlertDialogCountdownState();
+}
+
+class _AlertDialogCountdownState extends State<AlertDialogCountdown> {
+  int durationInSeconds = 0;
+  // Convert seconds to Duration.
+  Duration get duration =>
+      Duration(seconds: widget.durationValue) ;
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 120,
+      color: Colors.white,
+      child: CupertinoTimerPicker(
+        itemExtent: 120,
+        mode: CupertinoTimerPickerMode.hm,
+        initialTimerDuration: duration,
+        onTimerDurationChanged: (newDuration) {
+          setState(() {
+            durationInSeconds = newDuration.inSeconds;
+          });
+          context
+              .read<CreateSceneBloc>()
+              .add(SelectedValueEvent(value: newDuration.inSeconds));
+        },
+      ),
+    );
+  }
+}