feat(plans) Plans create and edit API connect, TextController management and redirect

lib/presentation/plans/plan_edit_screen/models/plan_edit_model.dart

@@ -0,0 +1,19 @@
+// ignore_for_file: must_be_immutable
+
+import 'package:equatable/equatable.dart';
+
+/// This class defines the variables used in the [plan_edit_screen],
+/// and is typically used to hold data that is passed between different parts of the application.
+
+class PlanEditModel extends Equatable {
+  final String planID;
+
+  PlanEditModel({required String planID}) : planID = planID;
+
+  PlanEditModel copyWith(String planID) {
+    return PlanEditModel(planID: planID);
+  }
+
+  @override
+  List<Object?> get props => [planID];
+}