Operator confirmed they have no existing ?image=N bookmarks to
preserve, so the soft-compat read on initial mount + router.replace
strip is dead weight. The modal is now purely a Pinia overlay — no
URL involvement on open OR initial mount.
Drops 33 lines plus the now-unused vue-router imports in both
ArtistGalleryTab (entire onMounted gone) and GalleryView (just the
?image=N block; the post_id/tag_id filter handling stays).
bvandeusen