eCommerce Product Category Breadcrumb

This module changes how category navigation looks on the product page of your Odoo website shop.

• The standard breadcrumb on the product page is replaced by a recursive one: instead of showing only the direct category, it walks up the category tree and shows every parent category, each as a clickable link back to that category's shop page.
• Below the product details, an extra block appears when the product is assigned to more than one public category. It shows the text "This product is also present in these categories:" followed by a separate breadcrumb for each additional category, again with the full parent path. The breadcrumb for the category currently being viewed is skipped so it is not repeated.
• Each breadcrumb starts with a "Products" link that returns to the shop.

The module only touches the website product page template (website_sale.product); it adds no new models, menus, buttons, reports, scheduled jobs or business rules. It depends on website_sale and is marked as Beta.