Version 1.2.3

• Products with variants (sizes, colours, lengths) showed no price: fixed.
• Some offers stayed "unavailable" even though the price was visible on the page: fixed.
• Shipping costs are read again on multi-dimension listings (e.g. diameter × length).
• Used-only offers are shown with a "Used" label and never compete with new prices.
• The popup now says clearly when no offer was found, instead of loading forever.