feat: add navigation button to notifications for direct song/album/playlist access

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

src/ui.js

@@ -273,7 +273,7 @@ export async function executeDownload() {
     collectionId: S.downloadTarget.collectionId || null,
     explicit:   S.downloadTarget.trackExplicitness === 'explicit',
   };
-  addJob(jobId, payload.title, payload.artist);
+  addJob(jobId, payload.title, payload.artist, payload.type);
   try {
     const res = await fetch(`${S.cfg.backendUrl}/api/download`, {
       method: 'POST', headers: {'Content-Type':'application/json'},
@@ -291,7 +291,7 @@ export async function executeDownload() {
 export async function executeSpotifyDownload({ type, title, artist, artworkUrl, tracks, createPlaylist, playlistName }) {
   if (!S.cfg.backendUrl) { toast('⚠ Kein Backend konfiguriert'); return; }
   const jobId = 'job_' + Date.now();
-  addJob(jobId, title, artist);
+  addJob(jobId, title, artist, type);
   try {
     const res = await fetch(`${S.cfg.backendUrl}/api/download`, {
       method: 'POST',
@@ -344,10 +344,11 @@ async function _createNdPlaylist(tracks, name) {
       return;
     }
     const songParams = songIds.map(id => `&songId=${encodeURIComponent(id)}`).join('');
-    await api('createPlaylist', `&name=${encodeURIComponent(name)}${songParams}`);
+    const plRes = await api('createPlaylist', `&name=${encodeURIComponent(name)}${songParams}`);
+    const plId = plRes.playlist?.id || null;
     const msg = `${songIds.length}/${tracks.length} Tracks hinzugefügt${missing.length ? `, ${missing.length} nicht gefunden` : ''}`;
     toast(`✅ Playlist "${name}" mit ${songIds.length}/${tracks.length} Tracks erstellt`);
-    _addNotif({ id: 'pl_' + Date.now(), title: `Playlist: ${name}`, artist: '', status: 'done', message: msg, missing, timestamp: Date.now(), read: false });
+    _addNotif({ id: 'pl_' + Date.now(), title: `Playlist: ${name}`, artist: '', status: 'done', message: msg, missing, timestamp: Date.now(), read: false, navType: 'playlist', navId: plId, navName: name });
   } catch(e) {
     toast('Playlist-Erstellung fehlgeschlagen: ' + e.message);
   }
@@ -425,6 +426,10 @@ function _renderNotifList() {
     const missingHtml = n.missing?.length
       ? `<details class="notif-failed"><summary>${n.missing.length} Track${n.missing.length > 1 ? 's' : ''} nicht in Navidrome gefunden</summary><ul>${n.missing.map(f => `<li>${esc(f)}</li>`).join('')}</ul></details>`
       : '';
+    const hasNav = n.status === 'done' && ((n.navType === 'playlist' && n.navId) || n.navArtist);
+    const navBtn = hasNav
+      ? `<button class="notif-nav-btn" onclick="_notifNavigate('${esc(n.id)}')">Öffnen →</button>`
+      : '';
     return `<div class="notif-card${n.read ? '' : ' unread'}">
       <div class="notif-card-top">
         <span class="notif-icon">${icon}</span>
@@ -437,18 +442,46 @@ function _renderNotifList() {
       ${n.message ? `<div class="notif-msg">${esc(n.message)}</div>` : ''}
       ${failedHtml}
       ${missingHtml}
+      ${navBtn}
     </div>`;
   }).join('');
 }
 
+export async function _notifNavigate(notifId) {
+  const notifs = _loadNotifs();
+  const n = notifs.find(x => x.id === notifId);
+  if (!n) return;
+  // close panel first
+  const panel = document.getElementById('notif-panel');
+  const overlay = document.getElementById('notif-overlay');
+  panel?.classList.remove('open');
+  overlay?.classList.remove('active');
+
+  if (n.navType === 'playlist' && n.navId) {
+    navigate('playlist-detail', { id: n.navId, name: n.navName || n.title.replace(/^Playlist:\s*/, '') });
+    return;
+  }
+
+  if (n.navArtist) {
+    try {
+      const norm = s => s?.toLowerCase().trim() || '';
+      const r = await api('search3', `&query=${encodeURIComponent(n.navArtist)}&artistCount=5&albumCount=0&songCount=0`);
+      const artists = r.searchResult3?.artist || [];
+      const match = artists.find(a => norm(a.name) === norm(n.navArtist)) || artists[0];
+      if (match) { navigate('artist-detail', { id: match.id, name: match.name }); return; }
+    } catch {}
+    toast('Künstler nicht gefunden — Library-Scan nötig?');
+  }
+}
+
 function _parseFailedTracks(log) {
   const re = /Fehler bei "([^"]+)"/;
   return (log || []).map(line => re.exec(line)?.[1]).filter(Boolean);
 }
 
 // ─── JOBS ───
-function addJob(id, title, artist) {
-  S.jobs[id] = {title, artist, progress:0, status:'pending'};
+function addJob(id, title, artist, type) {
+  S.jobs[id] = {title, artist, type: type || '', progress:0, status:'pending'};
   renderJobs();
 }
 function updateJob(id, status, msg, progress) {
@@ -494,6 +527,9 @@ async function pollJob(jobId) {
         failed: _parseFailedTracks(d.log),
         timestamp: Date.now(),
         read: false,
+        navType: job?.type || '',
+        navArtist: job?.artist || '',
+        navTitle: title,
       });
       if (d.status === 'done') {
         toast(d.skipped ? `⏭ "${title}" bereits auf dem Server` : `✅ ${title} gespeichert!`);