Product Sales & Profitability Reporting

Please add product sales and profitability reporting to Gorelo, providing visibility across all products sold. Reporting should include quantity sold, revenue, cost, gross profit, and margin, with the ability to identify top-selling and most profitable products, analyse sales by product category, and drill down into the underlying invoices and transactions. This would help MSPs make better purchasing, pricing, and sales decisions by providing a clear view of product performance and profitability.