fix: lyrics race condition, PC scroll, artwork matching, accidental artist/album taps

- nowplaying: add cancellation token to _loadNpLyrics to prevent stale async
  calls overwriting newer results (synced→plain race condition)
- nowplaying: replace scrollIntoView with explicit container.scrollTo to prevent
  page-level scroll on desktop (topbar shifting / gap at edge)
- backend: remove results[0] fallback in lookupItunesTrackMeta — only use
  exact title+artist match to avoid embedding wrong artwork
- components/views: makeSongItem accepts noArtistLink/noAlbumLink opts;
  album-detail disables both, playlist-detail disables artist link

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/nowplaying.js

@@ -80,6 +80,7 @@ export function switchNpTab(tab) {
 // ─── LYRICS ───
 let _lyricsLines = [];
 let _lyricsSongId = null;
+let _lyricsLoadToken = 0;
 
 const LYRICS_LOOKAHEAD_MS = 200;
 
@@ -125,11 +126,14 @@ async function _loadNpLyrics(songId) {
   _lyricsLines = [];
   content.innerHTML = '<div style="text-align:center;padding:60px 0;color:rgba(255,255,255,.3);font-size:14px">Lade Lyrics…</div>';
 
+  const token = ++_lyricsLoadToken;
   const s = S.queue[S.qIdx];
   const { getLyricsBySongId } = await import('./api.js');
+  if(token !== _lyricsLoadToken) return;
 
   // 1. Try Navidrome structured lyrics
   const lyrics = await getLyricsBySongId(songId);
+  if(token !== _lyricsLoadToken) return;
   const track = lyrics[0];
   if(track?.synced && track.line?.length) {
     content.innerHTML = '';
@@ -149,6 +153,7 @@ async function _loadNpLyrics(songId) {
       ...(s?.album ? [new URLSearchParams({ artist_name: firstArtist, track_name: s?.title||'' })] : []),
     ];
     for(const p of attempts) {
+      if(token !== _lyricsLoadToken) return;
       const r = await fetch(`https://lrclib.net/api/get?${p}`, { signal: AbortSignal.timeout(6000) });
       if(r.ok) {
         const d = await r.json();
@@ -158,6 +163,7 @@ async function _loadNpLyrics(songId) {
       }
     }
   } catch {}
+  if(token !== _lyricsLoadToken) return;
 
   content.innerHTML = '';
   if(lrcText) {
@@ -194,7 +200,14 @@ export function updateLyricsHighlight(currentMs) {
     line.el.classList.toggle('active', i === activeIdx);
     line.el.classList.toggle('past', i < activeIdx);
   });
-  if(activeIdx >= 0) _lyricsLines[activeIdx].el.scrollIntoView({ behavior: 'smooth', block: 'center' });
+  if(activeIdx >= 0) {
+    const activeEl = _lyricsLines[activeIdx].el;
+    const container = document.getElementById('np-lyrics-view');
+    if(container) {
+      const target = activeEl.offsetTop - container.clientHeight / 2 + activeEl.clientHeight / 2;
+      container.scrollTo({ top: Math.max(0, target), behavior: 'smooth' });
+    }
+  }
 }
 
 export function onNpSongChange(songId) {