feat(web): refresh the current view after deleting a song or playlist

Deletes left the removed item visible because the list loaders are cached (getPlaylists
~3 min): deletePlaylist navigated to a still-cached list, and deleteSong only reloaded
playlists. Add refreshCurrentView() — drops the API cache and re-runs the active nav
entry's loader (playlists, playlist/album/artist detail, starred, home, …). deleteSong
calls it after the delete+rescan delay; deletePlaylist invalidates getPlaylists before
navigating. Bump SW cache to ns-v46.

Also record the post-1.2 work in the 1.2 changelog (importer Enter, search single-song
+ radio, NowPlaying order, official-audio artist-metadata match, JP-katakana album
artist fix, year back-fill, delete refresh).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/ui/metadata.js

@@ -2,7 +2,7 @@ import { S } from '../state.js';
 import { esc, formatDur, toast } from '../utils.js';
 import { api, coverUrl, fetchRomajiIndex, romajiLookup, getRomajiOverrides, invalidateRomajiIndex, invalidateApiCache } from '../api.js';
 // Circular — safe (only used inside function bodies)
-import { loadPlaylists, loadPlaylistDetail } from '../views/views.js';
+import { loadPlaylists, loadPlaylistDetail, refreshCurrentView } from '../views/views.js';
 import { showConfirm } from './modals.js';
 
 // ─── SONG INFO MODAL ───
@@ -312,11 +312,9 @@ export async function deleteSong() {
     if (!r.ok) throw new Error(d.error || `HTTP ${r.status}`);
     toast(`🗑 "${s.title}" gelöscht`);
     closeInfoModal();
-    setTimeout(() => {
-      loadPlaylists();
-      if (document.getElementById('page-playlist-detail')?.classList.contains('active') && S._currentPlaylist)
-        loadPlaylistDetail(S._currentPlaylist);
-    }, 3000);
+    // Backend delete + Navidrome rescan takes a moment; then refresh whatever view is open (album,
+    // artist, playlist, starred, …) so the removed song disappears without a manual reload.
+    setTimeout(() => refreshCurrentView(), 3000);
   } catch (e) {
     status.textContent = '❌ Fehler: ' + e.message;
   }