Configure invoice PDF content per product (Pay Now button, notes, logo)

🔍 Problem Statement

As a publisher, I can't configure invoice behavior at the product level: I can't hide the Pay Now button or add product-specific notes on invoice PDFs, which limits how invoices are presented to customers.

💡 User Story

As an administrator, I want to configure invoice settings at the product level, so that I can hide the online payment option and display custom notes for specific products on generated invoice PDFs.

🎯 Definition of Done (DoD)

A feature is done when:

· Add a Hide Online Payment Option toggle field in Product Configuration Settings.

· Add a Product Invoice Notes text field that is editable in Product Configuration Settings.

· When Hide Online Payment Option is enabled, the "Pay Now" button is not displayed on invoice PDFs generated using the Pelcro invoice generator.

· When Product Invoice Notes contains a value, the note is displayed on invoice PDFs for that product.

· Existing products remain unaffected unless these settings are explicitly configured.