Account Invoice Report Header Repeater

When you print or email a customer invoice, the standard Odoo invoice PDF shows the header block only once, on the first page. This module changes that report so the same header information is repeated on all pages, which makes multi-page invoices easier to read and file.

What changes for the user: - The invoice title block (the heading normally shown at the top of the first page) is moved into the repeating table header of the report, so it appears on every page. - The invoice information block (dates, origin, customer code, reference and similar fields) is also moved into the repeating table header, so it repeats on every page. - Some positioning styles on the invoice date, due date, origin, customer code and reference blocks are adjusted so these elements can repeat correctly across pages.

Where it appears: only in the printed/PDF invoice report (account.report_invoice_document). No new menus, buttons, models or database fields are added, and no business rules, checks or automatic actions are introduced. It is purely a report layout change for invoices.