It may be a male Amaurobius fenestralis or the very similar A similis https://en.m.wikipedia.org/wiki/Amaurobius_fenestralis
not 100% on this but i think it is a Strotarchus piscatorius a long legged sac spider. not 100% on that
the more i look at it i think it is a lace weaver spider, window lace weaver (Amaurobius similis)
It may be a male Amaurobius fenestralis or the very similar A similis
https://en.m.wikipedia.org/wiki/Amaurobius_fenestralis
not 100% on this but i think it is a Strotarchus piscatorius a long legged sac spider. not 100% on that
the more i look at it i think it is a lace weaver spider, window lace weaver (Amaurobius similis)