refined responsive ui for dashboard and start customer work

lib/features/customers/models/customer_model.dart

@@ -0,0 +1,101 @@
+import 'package:equatable/equatable.dart';
+
+class CustomerModel extends Equatable {
+  final BigInt? id; // Bigint in SQL
+  final DateTime? createdAt;
+  final String nome;
+  final String telefono;
+  final String email;
+  final String note;
+  final DateTime? dataUltimoContatto;
+  final bool nonDisturbare;
+  final String companyId; // UUID
+  final bool isActive;
+
+  const CustomerModel({
+    this.id,
+    this.createdAt,
+    required this.nome,
+    required this.telefono,
+    required this.email,
+    required this.note,
+    this.dataUltimoContatto,
+    this.nonDisturbare = false,
+    required this.companyId,
+    this.isActive = true,
+  });
+
+  @override
+  List<Object?> get props => [
+    id,
+    createdAt,
+    nome,
+    telefono,
+    email,
+    note,
+    dataUltimoContatto,
+    nonDisturbare,
+    companyId,
+    isActive,
+  ];
+
+  CustomerModel copyWith({
+    BigInt? id,
+    DateTime? createdAt,
+    String? nome,
+    String? telefono,
+    String? email,
+    String? note,
+    DateTime? dataUltimoContatto,
+    bool? nonDisturbare,
+    String? companyId,
+    bool? isActive,
+  }) {
+    return CustomerModel(
+      id: id ?? this.id,
+      createdAt: createdAt ?? this.createdAt,
+      nome: nome ?? this.nome,
+      telefono: telefono ?? this.telefono,
+      email: email ?? this.email,
+      note: note ?? this.note,
+      dataUltimoContatto: dataUltimoContatto ?? this.dataUltimoContatto,
+      nonDisturbare: nonDisturbare ?? this.nonDisturbare,
+      companyId: companyId ?? this.companyId,
+      isActive: isActive ?? this.isActive,
+    );
+  }
+
+  factory CustomerModel.fromJson(Map<String, dynamic> json) {
+    return CustomerModel(
+      id: json['id'],
+      createdAt: json['created_at'] != null
+          ? DateTime.parse(json['created_at'])
+          : null,
+      nome: json['nome'],
+      telefono: json['telefono'],
+      email: json['email'],
+      note: json['note'] ?? '',
+      dataUltimoContatto: json['data_ultimo_contatto'] != null
+          ? DateTime.parse(json['data_ultimo_contatto'])
+          : null,
+      nonDisturbare: json['non_disturbare'] ?? false,
+      companyId: json['company_id'],
+      isActive: json['is_active'] ?? true,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      if (id != null) 'id': id,
+      'nome': nome,
+      'telefono': telefono,
+      'email': email,
+      'note': note,
+      if (dataUltimoContatto != null)
+        'data_ultimo_contatto': dataUltimoContatto!.toIso8601String(),
+      'non_disturbare': nonDisturbare,
+      'company_id': companyId,
+      'is_active': isActive,
+    };
+  }
+}