Manufacturing users are now prompted to enter lot or serial numbers when completing the final work order for a manufacturing order. This helps ensure finished products are properly tracked before production is closed, reducing missing traceability information.

<strong>Task:</strong> https://www.odoo.com/web#id=19559&view_type=form&model=project.task&action=327
<strong>Pad:</strong> https://pad.odoo.com/p/openerp-project.task-BWS6J1WXEY

Updates to custom models and fields now keep Odoo's internal registry consistent after changes. This reduces the risk of errors when modifying custom data structures and helps related database indexes stay aligned when columns are renamed.

This fixes current inconsistencies, and simplifies the code.