CVE-2026-63461: Vendure: Shop API list queries can return non-public entities when filterOperator is OR

The Shop API products, collections and facets queries inject a mandatory filter to restrict results to publicly-visible entities (Product.enabled = true, Collection.isPrivate = false, Facet.isPrivate = false). This injected guard was combined with the caller-supplied filter using the caller-controlled filterOperator. When a caller sets filterOperator: OR, the guard is OR-combined instead of AND-combined, so a caller can retrieve disabled products and private collections/facets by supplying a predicate that matches them.