- Added 'additionalCost' and 'additionalCostWithTax' fields to CourierService model. - Introduced 'connection.port' field in DocumentPrinter model. - Updated Filament model with 'density' and 'emptySpoolWeight' fields. - Enhanced Part, PartSku, Product, and ProductSku models by adding 'cost', 'costWithTax', 'price', 'margin', and 'priceWithTax' fields for improved pricing structure.