Account Purchase Stock Report Non Billed

This module adds purchase-related stock moves to the existing non-billed stock report. It is meant for companies that receive products from vendors and want to track which received quantities are still waiting to be invoiced.

• The report wizard (account.sale.stock.report.non.billed.wiz) now also searches for done stock moves linked to a purchase order line, within the selected date range, excluding scrapped moves. It includes moves from a supplier location and returns to supplier when marked as refundable.
• For each purchase-related move, the system computes the invoiced quantity by looking at the linked vendor bills and refunds, taking into account returns and the report's date range.
• It calculates the not-invoiced quantity and amount using the purchase line price and discount, and shows the currency of the purchase order.
• The origin document shown for these moves is the purchase order instead of the sale order.
• Kit products are handled so that purchase moves matching the purchased product are not discarded from the report.

The module touches stock.move and the report wizard, and depends on purchase and stock invoicing links. It does not add new menus or screens; it enriches the existing non-billed report with purchase data.