account_invoice_report_product_sticker

Purpose

Extend customer invoice reports to show product stickers with configurable placement.

Features

res.config.settings: Adds a configuration option to define the default position where product stickers should appear on invoice reports.
account.move: Provides a stored selection field that defaults from configuration to control product sticker placement on each sales invoice.
account.move: Computes the invoice's product stickers from its product lines so the report can show the relevant stickers.
invoice report: Integrates product sticker snippets into the rendered invoice at the selected top-right or bottom-left position.