add favorite

lib/features/products/data/models/product_model.dart

@@ -292,6 +292,59 @@ class ProductModel extends HiveObject {
     );
   }
 
+  /// Create ProductModel from Wishlist API JSON
+  ///
+  /// The wishlist API returns a simplified product structure:
+  /// - name: Item code (e.g., "GIB20 G04")
+  /// - item_code: Item code (duplicate of name)
+  /// - item_name: Display name (e.g., "Gibellina GIB20 G04")
+  /// - item_group_name: Category (e.g., "OUTDOOR [20mm]")
+  /// - custom_link_360: 360 view link
+  /// - thumbnail: Thumbnail image URL
+  /// - price: Price (usually 0 from wishlist)
+  /// - currency: Currency code
+  /// - conversion_of_sm: Conversion factor
+  factory ProductModel.fromWishlistApi(Map<String, dynamic> json) {
+    final now = DateTime.now();
+
+    // Handle thumbnail URL
+    String thumbnailUrl = '';
+    if (json['thumbnail'] != null && (json['thumbnail'] as String).isNotEmpty) {
+      final thumbnailPath = json['thumbnail'] as String;
+      if (thumbnailPath.startsWith('http')) {
+        thumbnailUrl = thumbnailPath;
+      } else if (thumbnailPath.startsWith('/')) {
+        thumbnailUrl = '${ApiConstants.baseUrl}$thumbnailPath';
+      } else {
+        thumbnailUrl = '${ApiConstants.baseUrl}/$thumbnailPath';
+      }
+    }
+
+    return ProductModel(
+      productId: json['item_code'] as String? ?? json['name'] as String,
+      name: json['item_name'] as String? ?? json['name'] as String,
+      description: null, // Not provided by wishlist API
+      basePrice: (json['price'] as num?)?.toDouble() ?? 0.0,
+      images: null, // Not provided by wishlist API
+      thumbnail: thumbnailUrl,
+      imageCaptions: null,
+      customLink360: json['custom_link_360'] as String?,
+      specifications: null,
+      category: json['item_group_name'] as String?,
+      brand: null, // Not provided by wishlist API
+      unit: json['currency'] as String? ?? 'm²',
+      conversionOfSm: json['conversion_of_sm'] != null
+          ? (json['conversion_of_sm'] as num).toDouble()
+          : null,
+      introAttributes: null,
+      isActive: true, // Assume active if in wishlist
+      isFeatured: false,
+      erpnextItemCode: json['item_code'] as String? ?? json['name'] as String,
+      createdAt: now,
+      updatedAt: null,
+    );
+  }
+
   /// Convert ProductModel to JSON
   Map<String, dynamic> toJson() {
     return {