Display Component's Lot on the Production Order Report

This module changes the printed Manufacturing Order report (the PDF you can print from a production order). It does not add new menus or screens; it only enriches the existing report.

What changes on the report: - A new "Lot / SN" column appears in the components table, but only when the production order is in progress, to close, or done, and only if at least one component is tracked by lot or serial number. - For components tracked by serial number, the serial numbers used are listed in that column. - For components tracked by lot, the consumed quantity is no longer shown as a single total: it is split into one line per lot, each with its own quantity. - If some quantity was consumed without a lot assigned, an extra line shows that quantity and the words "Lot missing" appear in the Lot / SN column.

Behind the scenes, the module extends the stock move logic to compute consumed quantities per lot from the completed move lines, converting them into the product's unit of measure. This is what feeds the report.

It touches the stock.move model and the production order report template. No new fields, menus, buttons, emails or scheduled actions are added.