Get Leboncoin ad

Fetch a single Leboncoin classified ad by its URL. Returns title, full description, price, seller info, location, favorites count, all images, and a generic list of the ad's own category-specific attributes (e.g. mileage/fuel for a car, rooms/surface for a real estate listing, condition/material for furniture) with their labels and values as leboncoin itself displays them. Works across every category since the attribute list is read generically rather than assuming a fixed schema per category.