fc3f: ArtistsView + /artists route — search + platform filter + infinite scroll grid

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/src/router.js

@@ -10,6 +10,7 @@ import SubscriptionsView from './views/SubscriptionsView.vue'
 import CredentialsView from './views/CredentialsView.vue'
 import DownloadsView from './views/DownloadsView.vue'
 import PostsView from './views/PostsView.vue'
+import ArtistsView from './views/ArtistsView.vue'
 
 // The application's front door. `/` redirects here. Changing the front door
 // is a one-line edit (e.g. '/gallery' or '/tags').
@@ -22,6 +23,7 @@ const routes = [
   // FC-2: image backbone
   { path: '/showcase', name: 'showcase', component: ShowcaseView, meta: { title: 'Showcase' } },
   { path: '/gallery',  name: 'gallery',  component: GalleryView,  meta: { title: 'Gallery'  } },
+  { path: '/artists',  name: 'artists',  component: ArtistsView,  meta: { title: 'Artists'  } },
   { path: '/tags',     name: 'tags',     component: TagsView,     meta: { title: 'Tags'     } },
   // Artist detail — no meta.title (reached by clicking an artist, not nav).
   { path: '/artist/:slug', name: 'artist', component: ArtistView },