Fixed sales invoice issues in Ecommerce

kifi-app/lib/features/sales/domain/sales_channel.dart

@@ -0,0 +1,49 @@
+class SalesChannel {
+  final int? id;
+  final int? userId;
+  final String name;
+  final String? code;
+  final String? icon;
+  final int? defaultLedgerId;
+  final bool isActive;
+  final DateTime? createdAt;
+  final DateTime? updatedAt;
+
+  SalesChannel({
+    this.id,
+    this.userId,
+    required this.name,
+    this.code,
+    this.icon,
+    this.defaultLedgerId,
+    this.isActive = true,
+    this.createdAt,
+    this.updatedAt,
+  });
+
+  factory SalesChannel.fromJson(Map<String, dynamic> json) {
+    return SalesChannel(
+      id: json['id'],
+      userId: json['userId'] ?? json['user_id'],
+      name: json['name'] ?? '',
+      code: json['code'],
+      icon: json['icon'],
+      defaultLedgerId: json['defaultLedgerId'] ?? json['default_ledger_id'],
+      isActive: json['isActive'] ?? json['is_active'] ?? true,
+      createdAt: json['createdAt'] != null ? DateTime.tryParse(json['createdAt']) : null,
+      updatedAt: json['updatedAt'] != null ? DateTime.tryParse(json['updatedAt']) : null,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      if (id != null) 'id': id,
+      if (userId != null) 'userId': userId,
+      'name': name,
+      if (code != null) 'code': code,
+      if (icon != null) 'icon': icon,
+      if (defaultLedgerId != null) 'defaultLedgerId': defaultLedgerId,
+      'isActive': isActive,
+    };
+  }
+}