refined responsive ui for dashboard and start customer work

lib/features/customers/blocs/customer_state.dart

@@ -0,0 +1,40 @@
+part of 'customer_bloc.dart';
+
+enum CustomerStatus { initial, loading, success, failure }
+
+class CustomerState extends Equatable {
+  final CustomerStatus status;
+  final List<CustomerModel> customers; // Per la lista generale
+  final CustomerModel?
+  lastCreatedCustomer; // <--- Fondamentale per la Dialog "al volo"
+  final String? errorMessage;
+
+  const CustomerState({
+    this.status = CustomerStatus.initial,
+    this.customers = const [],
+    this.lastCreatedCustomer,
+    this.errorMessage,
+  });
+
+  CustomerState copyWith({
+    CustomerStatus? status,
+    List<CustomerModel>? customers,
+    CustomerModel? lastCreatedCustomer,
+    String? errorMessage,
+  }) {
+    return CustomerState(
+      status: status ?? this.status,
+      customers: customers ?? this.customers,
+      lastCreatedCustomer: lastCreatedCustomer ?? this.lastCreatedCustomer,
+      errorMessage: errorMessage ?? this.errorMessage,
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+    status,
+    customers,
+    lastCreatedCustomer,
+    errorMessage,
+  ];
+}