feat: v1.30.0 — Discord RPC, offline bulk download, artist images, lazy loading, crossfade fix

- Discord Rich Presence (opt-in) — requested by @Bewenben (#49)
- Bulk offline download for playlists and artist discographies — requested by @Apollosport (#54)
- Offline Library filter tabs: All / Albums / Playlists / Discographies with artist grouping
- Artist images on Artists overview (opt-in, off by default) — reported by @Apollosport (#53)
- Image lazy loading via IntersectionObserver (300px margin) across all pages
- Fix: crossfade no longer triggers on manual track skip — reported by @netherguy4 (#35)
- Fix: playlist offline cache now stored as single entry (not per-album)
- Fix: image cache AbortController no longer blocks IDB writes
- Update toast: experimental auto-update hint + GH download link always visible (Win/Mac)
- Queue tech strip: genre removed
- Facebook theme: contrast, opaque badge/back button, queue tab labels
- "Save discography offline" label (was "Download discography")
- Fix: clearing empty playlists via updatePlaylist.view (Axios empty array workaround)
- starredOverrides propagated to AlbumDetail, Favorites, RandomMix

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

src/i18n.ts

@@ -140,6 +140,7 @@ const enTranslation = {
     bioModal: 'Artist Biography',
     bioClose: 'Close',
     ratingLabel: 'Rating',
+    enlargeCover: 'Enlarge',
   },
   artistDetail: {
     back: 'Back',
@@ -165,6 +166,9 @@ const enTranslation = {
     openedInBrowser: 'Opened in browser',
     featuredOn: 'Also Featured On',
     similarArtists: 'Similar Artists',
+    cacheOffline: 'Save discography offline',
+    offlineCached: 'Discography cached',
+    offlineDownloading: 'Caching… ({{done}}/{{total}} albums)',
   },
   favorites: {
     title: 'Favorites',
@@ -237,6 +241,8 @@ const enTranslation = {
     all: 'All',
     gridView: 'Grid view',
     listView: 'List view',
+    imagesOn: 'Artist images on — may increase network and system load',
+    imagesOff: 'Artist images off — showing initials only',
     loadMore: 'Load more',
     notFound: 'No artists found.',
     albumCount_one: '{{count}} Album',
@@ -275,6 +281,10 @@ const enTranslation = {
     offlineLibraryEmpty: 'No albums cached yet. Go online, open an album and click "Make available offline".',
     offlineAlbumCount: '{{n}} album',
     offlineAlbumCount_plural: '{{n}} albums',
+    offlineFilterAll: 'All',
+    offlineFilterAlbums: 'Albums',
+    offlineFilterPlaylists: 'Playlists',
+    offlineFilterArtists: 'Discographies',
     retry: 'Retry',
     lastfmConnected: 'Last.fm connected as @{{user}}',
     lastfmSessionInvalid: 'Session invalid — click to re-connect',
@@ -313,6 +323,7 @@ const enTranslation = {
     updaterDownloading: 'Downloading…',
     updaterInstalling: 'Installing…',
     updaterDownload: 'Download from GitHub',
+    updaterExperimentalHint: 'Auto-update is still in development',
   },
   settings: {
     title: 'Settings',
@@ -374,8 +385,12 @@ const enTranslation = {
     cacheClearWarning: 'This will also remove all offline albums from the library.',
     cacheClearConfirm: 'Clear Everything',
     cacheClearCancel: 'Cancel',
+    showArtistImages: 'Show Artist Images',
+    showArtistImagesDesc: 'Load and display artist images in the Artists overview. Disabled by default to reduce server disk I/O and network load on large libraries.',
     minimizeToTray: 'Minimize to Tray',
     minimizeToTrayDesc: 'When closing the window, keep Psysonic running in the system tray instead of quitting.',
+    discordRichPresence: 'Discord Rich Presence',
+    discordRichPresenceDesc: 'Show the currently playing track on your Discord profile. Requires Discord to be running.',
     nowPlayingEnabled: 'Show in Now Playing',
     nowPlayingEnabledDesc: 'Broadcast your currently playing track to the server\'s live listener view. Disable to stop sending playback data.',
     downloadsTitle: 'Download Folder',
@@ -672,6 +687,9 @@ const enTranslation = {
     titleBadge: 'Playlist',
     refreshSuggestions: 'New suggestions',
     addSong: 'Add to playlist',
+    cacheOffline: 'Cache playlist offline',
+    offlineCached: 'Playlist cached',
+    offlineDownloading: 'Caching… ({{done}}/{{total}} albums)',
   }
 };
 
@@ -814,6 +832,7 @@ const deTranslation = {
     bioModal: 'Künstler-Biografie',
     bioClose: 'Schließen',
     ratingLabel: 'Bewertung',
+    enlargeCover: 'Vergrößern',
   },
   artistDetail: {
     back: 'Zurück',
@@ -839,6 +858,9 @@ const deTranslation = {
     openedInBrowser: 'Im Browser geöffnet',
     featuredOn: 'Auch enthalten auf',
     similarArtists: 'Ähnliche Künstler',
+    cacheOffline: 'Diskografie offline speichern',
+    offlineCached: 'Diskografie gecacht',
+    offlineDownloading: 'Wird gecacht… ({{done}}/{{total}} Alben)',
   },
   favorites: {
     title: 'Favoriten',
@@ -911,6 +933,8 @@ const deTranslation = {
     all: 'Alle',
     gridView: 'Gitteransicht',
     listView: 'Listenansicht',
+    imagesOn: 'Künstlerbilder aktiv — kann Netzwerk- und Systemlast erhöhen',
+    imagesOff: 'Künstlerbilder deaktiviert — zeigt nur Initialen',
     loadMore: 'Mehr laden',
     notFound: 'Keine Künstler gefunden.',
     albumCount_one: '{{count}} Album',
@@ -949,6 +973,10 @@ const deTranslation = {
     offlineLibraryEmpty: 'Noch keine Alben gecacht. Online gehen, Album öffnen und "Offline verfügbar machen" klicken.',
     offlineAlbumCount: '{{n}} Album',
     offlineAlbumCount_plural: '{{n}} Alben',
+    offlineFilterAll: 'Alle',
+    offlineFilterAlbums: 'Alben',
+    offlineFilterPlaylists: 'Playlists',
+    offlineFilterArtists: 'Diskografien',
     retry: 'Erneut versuchen',
     lastfmConnected: 'Last.fm verbunden als @{{user}}',
     lastfmSessionInvalid: 'Session ungültig — klicken zum Neu-Verbinden',
@@ -987,6 +1015,7 @@ const deTranslation = {
     updaterDownloading: 'Wird geladen…',
     updaterInstalling: 'Wird installiert…',
     updaterDownload: 'Von GitHub herunterladen',
+    updaterExperimentalHint: 'Automatische Updates sind noch in Entwicklung',
   },
   settings: {
     title: 'Einstellungen',
@@ -1048,8 +1077,12 @@ const deTranslation = {
     cacheClearWarning: 'Alle Offline-Alben werden damit aus der Bibliothek entfernt.',
     cacheClearConfirm: 'Alles löschen',
     cacheClearCancel: 'Abbrechen',
+    showArtistImages: 'Künstlerbilder anzeigen',
+    showArtistImagesDesc: 'Lädt und zeigt Künstlerbilder in der Künstlerübersicht. Standardmäßig deaktiviert, um Server-I/O und Netzwerklast bei großen Bibliotheken zu reduzieren.',
     minimizeToTray: 'Im Tray minimieren',
     minimizeToTrayDesc: 'Beim Schließen des Fensters läuft Psysonic weiter im System-Tray statt zu beenden.',
+    discordRichPresence: 'Discord Rich Presence',
+    discordRichPresenceDesc: 'Zeigt den aktuell gespielten Titel im Discord-Profil an. Discord muss dafür geöffnet sein.',
     nowPlayingEnabled: 'Im Livefenster anzeigen',
     nowPlayingEnabledDesc: 'Überträgt den aktuell gespielten Titel an die Livehörer-Ansicht des Servers. Deaktivieren, um keine Wiedergabedaten zu senden.',
     downloadsTitle: 'Download-Ordner',
@@ -1346,6 +1379,9 @@ const deTranslation = {
     titleBadge: 'Playlist',
     refreshSuggestions: 'Neue Vorschläge',
     addSong: 'Zur Playlist hinzufügen',
+    cacheOffline: 'Playlist offline speichern',
+    offlineCached: 'Playlist gecacht',
+    offlineDownloading: 'Wird gecacht… ({{done}}/{{total}} Alben)',
   }
 };
 
@@ -1488,6 +1524,7 @@ const frTranslation = {
     bioModal: 'Biographie de l\'artiste',
     bioClose: 'Fermer',
     ratingLabel: 'Note',
+    enlargeCover: 'Agrandir',
   },
   artistDetail: {
     back: 'Retour',
@@ -1513,6 +1550,9 @@ const frTranslation = {
     openedInBrowser: 'Ouvert dans le navigateur',
     featuredOn: 'Également sur',
     similarArtists: 'Artistes similaires',
+    cacheOffline: 'Enregistrer la discographie hors ligne',
+    offlineCached: 'Discographie en cache',
+    offlineDownloading: 'En cache… ({{done}}/{{total}} albums)',
   },
   favorites: {
     title: 'Favoris',
@@ -1585,6 +1625,8 @@ const frTranslation = {
     all: 'Tous',
     gridView: 'Vue en grille',
     listView: 'Vue en liste',
+    imagesOn: 'Images d\'artistes activées — peut augmenter la charge réseau et système',
+    imagesOff: 'Images d\'artistes désactivées — affichage des initiales uniquement',
     loadMore: 'Charger plus',
     notFound: 'Aucun artiste trouvé.',
     albumCount_one: '{{count}} album',
@@ -1623,6 +1665,10 @@ const frTranslation = {
     offlineLibraryEmpty: 'Aucun album en cache. Connectez-vous, ouvrez un album et cliquez sur "Rendre disponible hors ligne".',
     offlineAlbumCount: '{{n}} album',
     offlineAlbumCount_plural: '{{n}} albums',
+    offlineFilterAll: 'Tout',
+    offlineFilterAlbums: 'Albums',
+    offlineFilterPlaylists: 'Playlists',
+    offlineFilterArtists: 'Discographies',
     retry: 'Réessayer',
     lastfmConnected: 'Last.fm connecté en tant que @{{user}}',
     lastfmSessionInvalid: 'Session invalide — cliquez pour vous reconnecter',
@@ -1661,6 +1707,7 @@ const frTranslation = {
     updaterDownloading: 'Téléchargement…',
     updaterInstalling: 'Installation…',
     updaterDownload: 'Télécharger depuis GitHub',
+    updaterExperimentalHint: 'La mise à jour automatique est encore en développement',
   },
   settings: {
     title: 'Paramètres',
@@ -1722,8 +1769,12 @@ const frTranslation = {
     cacheClearWarning: 'Cela supprimera aussi tous les albums hors ligne de la bibliothèque.',
     cacheClearConfirm: 'Tout supprimer',
     cacheClearCancel: 'Annuler',
+    showArtistImages: 'Afficher les images d\'artistes',
+    showArtistImagesDesc: 'Charge et affiche les images d\'artistes dans la vue d\'ensemble. Désactivé par défaut pour réduire les E/S disque serveur et la charge réseau sur les grandes bibliothèques.',
     minimizeToTray: 'Réduire dans la barre système',
     minimizeToTrayDesc: 'Lors de la fermeture, Psysonic continue de fonctionner dans la barre système au lieu de se fermer.',
+    discordRichPresence: 'Discord Rich Presence',
+    discordRichPresenceDesc: 'Affiche le titre en cours de lecture sur votre profil Discord. Discord doit être ouvert.',
     nowPlayingEnabled: 'Afficher dans la fenêtre live',
     nowPlayingEnabledDesc: 'Diffuse le titre en cours de lecture vers la vue des auditeurs en direct du serveur. Désactiver pour ne pas envoyer de données de lecture.',
     downloadsTitle: 'Dossier de téléchargement',
@@ -2020,6 +2071,9 @@ const frTranslation = {
     titleBadge: 'Playlist',
     refreshSuggestions: 'Nouvelles suggestions',
     addSong: 'Ajouter à la playlist',
+    cacheOffline: 'Mettre la playlist hors ligne',
+    offlineCached: 'Playlist en cache',
+    offlineDownloading: 'En cache… ({{done}}/{{total}} albums)',
   }
 };
 
@@ -2162,6 +2216,7 @@ const nlTranslation = {
     bioModal: 'Artiest biografie',
     bioClose: 'Sluiten',
     ratingLabel: 'Beoordeling',
+    enlargeCover: 'Vergroten',
   },
   artistDetail: {
     back: 'Terug',
@@ -2187,6 +2242,9 @@ const nlTranslation = {
     openedInBrowser: 'Geopend in browser',
     featuredOn: 'Ook te vinden op',
     similarArtists: 'Vergelijkbare artiesten',
+    cacheOffline: 'Discografie offline opslaan',
+    offlineCached: 'Discografie gecached',
+    offlineDownloading: 'Cachen… ({{done}}/{{total}} albums)',
   },
   favorites: {
     title: 'Favorieten',
@@ -2259,6 +2317,8 @@ const nlTranslation = {
     all: 'Alle',
     gridView: 'Rasterweergave',
     listView: 'Lijstweergave',
+    imagesOn: 'Artiestafbeeldingen aan — kan netwerk- en systeembelasting verhogen',
+    imagesOff: 'Artiestafbeeldingen uit — toont alleen initialen',
     loadMore: 'Meer laden',
     notFound: 'Geen artiesten gevonden.',
     albumCount_one: '{{count}} album',
@@ -2297,6 +2357,10 @@ const nlTranslation = {
     offlineLibraryEmpty: 'Nog geen albums gecached. Ga online, open een album en klik op "Offline beschikbaar maken".',
     offlineAlbumCount: '{{n}} album',
     offlineAlbumCount_plural: '{{n}} albums',
+    offlineFilterAll: 'Alles',
+    offlineFilterAlbums: 'Albums',
+    offlineFilterPlaylists: 'Afspeellijsten',
+    offlineFilterArtists: 'Discografieën',
     retry: 'Opnieuw proberen',
     lastfmConnected: 'Last.fm verbonden als @{{user}}',
     lastfmSessionInvalid: 'Sessie ongeldig — klik om opnieuw te verbinden',
@@ -2335,6 +2399,7 @@ const nlTranslation = {
     updaterDownloading: 'Downloaden…',
     updaterInstalling: 'Installeren…',
     updaterDownload: 'Downloaden van GitHub',
+    updaterExperimentalHint: 'Automatisch bijwerken is nog in ontwikkeling',
   },
   settings: {
     title: 'Instellingen',
@@ -2396,8 +2461,12 @@ const nlTranslation = {
     cacheClearWarning: 'Dit verwijdert ook alle offline albums uit de bibliotheek.',
     cacheClearConfirm: 'Alles wissen',
     cacheClearCancel: 'Annuleren',
+    showArtistImages: 'Artiestafbeeldingen weergeven',
+    showArtistImagesDesc: 'Laadt en toont artiestafbeeldingen in het artiestenoverzicht. Standaard uitgeschakeld om server-I/O en netwerkbelasting bij grote bibliotheken te beperken.',
     minimizeToTray: 'Minimaliseren naar systeemvak',
     minimizeToTrayDesc: 'Bij het sluiten van het venster blijft Psysonic actief in het systeemvak in plaats van af te sluiten.',
+    discordRichPresence: 'Discord Rich Presence',
+    discordRichPresenceDesc: 'Toont het huidige nummer op je Discord-profiel. Discord moet daarvoor geopend zijn.',
     nowPlayingEnabled: 'Weergeven in live-venster',
     nowPlayingEnabledDesc: 'Stuurt het huidige nummer naar de live-luisteraarsweergave van de server. Uitschakelen om geen afspeelgegevens te verzenden.',
     downloadsTitle: 'Downloadmap',
@@ -2694,6 +2763,9 @@ const nlTranslation = {
     titleBadge: 'Playlist',
     refreshSuggestions: 'Nieuwe suggesties',
     addSong: 'Toevoegen aan playlist',
+    cacheOffline: 'Playlist offline opslaan',
+    offlineCached: 'Playlist gecached',
+    offlineDownloading: 'Cachen… ({{done}}/{{total}} albums)',
   }
 };
 
@@ -2836,6 +2908,7 @@ const zhTranslation = {
     bioModal: '艺术家简介',
     bioClose: '关闭',
     ratingLabel: '评分',
+    enlargeCover: '放大',
   },
   artistDetail: {
     back: '返回',
@@ -2861,6 +2934,9 @@ const zhTranslation = {
     openedInBrowser: '已在浏览器中打开',
     featuredOn: '还出现在',
     similarArtists: '相似艺术家',
+    cacheOffline: '离线保存全部专辑',
+    offlineCached: '全部专辑已缓存',
+    offlineDownloading: '正在缓存… ({{done}}/{{total}} 张专辑)',
   },
   favorites: {
     title: '收藏夹',
@@ -2933,6 +3009,8 @@ const zhTranslation = {
     all: '全部',
     gridView: '网格视图',
     listView: '列表视图',
+    imagesOn: '艺术家图片已开启 — 可能增加网络和系统负载',
+    imagesOff: '艺术家图片已关闭 — 仅显示首字母',
     loadMore: '加载更多',
     notFound: '未找到艺术家。',
     albumCount_one: '{{count}} 张专辑',
@@ -3009,6 +3087,7 @@ const zhTranslation = {
     updaterDownloading: '下载中…',
     updaterInstalling: '安装中…',
     updaterDownload: '从 GitHub 下载',
+    updaterExperimentalHint: '自动更新功能仍在开发中',
   },
   settings: {
     title: '设置',
@@ -3070,8 +3149,12 @@ const zhTranslation = {
     cacheClearWarning: '这将同时移除音乐库中的所有离线专辑。',
     cacheClearConfirm: '全部清除',
     cacheClearCancel: '取消',
+    showArtistImages: '显示艺术家图片',
+    showArtistImagesDesc: '在艺术家概览中加载并显示艺术家图片。默认关闭以减少大型音乐库的服务器磁盘I/O和网络负载。',
     minimizeToTray: '最小化到托盘',
     minimizeToTrayDesc: '关闭窗口时，Psysonic 将继续在系统托盘中运行，而不是退出。',
+    discordRichPresence: 'Discord Rich Presence',
+    discordRichPresenceDesc: '在 Discord 个人资料上显示当前播放的曲目。需要 Discord 处于运行状态。',
     nowPlayingEnabled: '在实时窗口中显示',
     nowPlayingEnabledDesc: '将当前播放的曲目广播到服务器的实时听众视图。禁用以停止发送播放数据。',
     downloadsTitle: '下载文件夹',
@@ -3368,6 +3451,9 @@ const zhTranslation = {
     titleBadge: '播放列表',
     refreshSuggestions: '新建议',
     addSong: '添加到播放列表',
+    cacheOffline: '离线缓存播放列表',
+    offlineCached: '播放列表已缓存',
+    offlineDownloading: '正在缓存… ({{done}}/{{total}} 张专辑)',
   }
 };