Feature Request: Search Invoice Descriptions & Serial Numbers

Please extend Gorelo's search functionality to include invoice line descriptions, product notes, and custom text entered against invoice items. Currently, we include device serial numbers in invoice descriptions for hardware traceability, but these cannot be found through search, making it difficult to verify whether a device has already been invoiced. Being able to search invoice descriptions, serial numbers, asset tags, SKUs, and other identifiers, and return the related invoice and customer details, would significantly improve efficiency and reduce the need to manually review historical invoices.