The Chilean F29 tax report has been optimized to calculate all report lines in one operation, making report generation faster and more reliable. The update also refines the six-column layout, tax credit and withholding calculations, and preserves upgrade compatibility for existing installations.

This commit optimizes the F29 report by using just one big query to
compute the data for all the report lines at once.

task-4329648

Forward-Port-Of: odoo/enterprise#106701