Switzerland - Invoice Reports with payment option

This module adds a new PDF report called "Invoice with payment slip(s)" for customer invoices (account.move). When you print or download an invoice with this report, Odoo first renders the normal invoice and then automatically appends the Swiss QR bill and/or the ISR payment slip, depending on what is enabled for the company.

In Settings, under Invoicing, a new "Invoice report options" section lets you tick "Print invoice with QR bill" and "Print invoice with ISR payslip". These settings are company-specific, so each company can decide which payment slips appear on its invoices.

When an invoice is sent by email using a template whose report is this new report or the standard "Invoice with payments" report, the generated PDF attachment is built with the same payment-slip logic, and only for companies whose country is Switzerland.

In the customer portal, downloading an invoice as PDF uses this combined report, while the HTML view keeps the standard invoice layout.

The module also adjusts the QR/ISR validity checks so that they are skipped when the invoice is being rendered for the report, avoiding unwanted attachments or validation side effects during printing.