feat(most-played): add dedicated Most Played page (#86)

New sidebar item (TrendingUp icon, /most-played route) with:

- Top Artists section: derived by grouping frequent albums by artistId
  and summing playCount — no extra API calls needed. Shows up to 10
  artists as a responsive grid with avatar, rank and total play count.
- Top Albums section: paginated list using getAlbumList('frequent'),
  50 albums per batch with a "Load more" button. Each row shows rank,
  cover thumbnail (44px), album name, artist (navigates to artist
  page), year and play count.
- Sort toggle (most plays first / fewest plays first).

Also adds playCount?: number to SubsonicAlbum — Navidrome returns this
field in getAlbumList2?type=frequent but it was missing from the type.

Closes #86

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

src/locales/de.ts

@@ -19,6 +19,7 @@ export const deTranslation = {
     offlineLibrary: 'Offline-Bibliothek',
     genres: 'Genres',
     playlists: 'Playlists',
+    mostPlayed: 'Meistgehört',
     radio: 'Internetradio',
     libraryScope: 'Bibliotheksumfang',
     allLibraries: 'Alle Bibliotheken',
@@ -777,6 +778,16 @@ export const deTranslation = {
     metaSaved: 'Playlist aktualisiert',
     downloadZip: 'Herunterladen (ZIP)',
   },
+  mostPlayed: {
+    title: 'Meistgehört',
+    topArtists: 'Top-Künstler',
+    topAlbums: 'Top-Alben',
+    plays: '{{n}}× gespielt',
+    sortMost: 'Meiste Plays zuerst',
+    sortLeast: 'Wenigste Plays zuerst',
+    loadMore: 'Mehr Alben laden',
+    noData: 'Noch keine Wiedergabedaten. Fang an zu hören!',
+  },
   radio: {
     title: 'Internetradio',
     empty: 'Keine Radiosender konfiguriert.',

src/locales/en.ts

@@ -20,6 +20,7 @@ export const enTranslation = {
     offlineLibrary: 'Offline Library',
     genres: 'Genres',
     playlists: 'Playlists',
+    mostPlayed: 'Most Played',
     radio: 'Internet Radio',
     libraryScope: 'Library scope',
     allLibraries: 'All libraries',
@@ -778,6 +779,16 @@ export const enTranslation = {
     metaSaved: 'Playlist updated',
     downloadZip: 'Download (ZIP)',
   },
+  mostPlayed: {
+    title: 'Most Played',
+    topArtists: 'Top Artists',
+    topAlbums: 'Top Albums',
+    plays: '{{n}} plays',
+    sortMost: 'Most plays first',
+    sortLeast: 'Fewest plays first',
+    loadMore: 'Load more albums',
+    noData: 'No play data yet. Start listening!',
+  },
   radio: {
     title: 'Internet Radio',
     empty: 'No radio stations configured.',

src/locales/fr.ts

@@ -19,6 +19,7 @@ export const frTranslation = {
     offlineLibrary: 'Bibliothèque hors ligne',
     genres: 'Genres',
     playlists: 'Playlists',
+    mostPlayed: 'Les plus joués',
     radio: 'Radio Internet',
     libraryScope: 'Portée de la bibliothèque',
     allLibraries: 'Toutes les bibliothèques',
@@ -777,6 +778,16 @@ export const frTranslation = {
     metaSaved: 'Playlist mise à jour',
     downloadZip: 'Télécharger (ZIP)',
   },
+  mostPlayed: {
+    title: 'Les plus joués',
+    topArtists: 'Artistes populaires',
+    topAlbums: 'Albums populaires',
+    plays: '{{n}} écoutes',
+    sortMost: 'Plus joués en premier',
+    sortLeast: 'Moins joués en premier',
+    loadMore: 'Charger plus d\'albums',
+    noData: 'Aucune donnée d\'écoute. Commencez à écouter !',
+  },
   radio: {
     title: 'Radio Internet',
     empty: 'Aucune station radio configurée.',

src/locales/nb.ts

@@ -19,6 +19,7 @@ export const nbTranslation = {
     offlineLibrary: 'Frakoblet bibliotek',
     genres: 'Sjangere',
     playlists: 'Spillelister',
+    mostPlayed: 'Mest spilt',
     radio: 'Internettradio',
     libraryScope: 'Biblioteksomfang',
     allLibraries: 'Alle biblioteker',
@@ -776,6 +777,16 @@ export const nbTranslation = {
     metaSaved: 'Spillelisten er oppdatert',
     downloadZip: 'Last ned (ZIP)',
   },
+  mostPlayed: {
+    title: 'Mest spilt',
+    topArtists: 'Toppkunstnere',
+    topAlbums: 'Toppalbum',
+    plays: '{{n}} avspillinger',
+    sortMost: 'Mest spilt først',
+    sortLeast: 'Minst spilt først',
+    loadMore: 'Last inn flere album',
+    noData: 'Ingen avspillingsdata ennå. Begynn å høre!',
+  },
   radio: {
     title: 'Internettradio',
     empty: 'Ingen radiostasjoner konfigurert.',

src/locales/nl.ts

@@ -19,6 +19,7 @@ export const nlTranslation = {
     offlineLibrary: 'Offline bibliotheek',
     genres: 'Genres',
     playlists: 'Playlists',
+    mostPlayed: 'Meest gespeeld',
     radio: 'Internetradio',
     libraryScope: 'Bibliotheekbereik',
     allLibraries: 'Alle bibliotheken',
@@ -777,6 +778,16 @@ export const nlTranslation = {
     metaSaved: 'Playlist bijgewerkt',
     downloadZip: 'Downloaden (ZIP)',
   },
+  mostPlayed: {
+    title: 'Meest gespeeld',
+    topArtists: 'Topkunstenaars',
+    topAlbums: 'Topalbums',
+    plays: '{{n}} keer gespeeld',
+    sortMost: 'Meest gespeeld eerst',
+    sortLeast: 'Minst gespeeld eerst',
+    loadMore: 'Meer albums laden',
+    noData: 'Nog geen afspeelgegevens. Begin met luisteren!',
+  },
   radio: {
     title: 'Internetradio',
     empty: 'Geen radiostations geconfigureerd.',

src/locales/ru.ts

@@ -20,6 +20,7 @@ export const ruTranslation = {
     offlineLibrary: 'Офлайн-библиотека',
     genres: 'Жанры',
     playlists: 'Плейлисты',
+    mostPlayed: 'Часто слушаемое',
     radio: 'Онлайн-радио',
     libraryScope: 'Область медиатеки',
     allLibraries: 'Все библиотеки',
@@ -831,6 +832,16 @@ export const ruTranslation = {
     metaSaved: 'Плейлист сохранён',
     downloadZip: 'Скачать (ZIP)',
   },
+  mostPlayed: {
+    title: 'Часто слушаемое',
+    topArtists: 'Топ исполнителей',
+    topAlbums: 'Топ альбомов',
+    plays: '{{n}} прослушиваний',
+    sortMost: 'Сначала популярные',
+    sortLeast: 'Сначала малоизвестные',
+    loadMore: 'Загрузить больше альбомов',
+    noData: 'Нет данных о прослушиваниях. Начните слушать!',
+  },
   radio: {
     title: 'Онлайн-радио',
     empty: 'Радиостанции не настроены.',

src/locales/zh.ts

@@ -19,6 +19,7 @@ export const zhTranslation = {
     offlineLibrary: '离线音乐库',
     genres: '流派',
     playlists: '播放列表',
+    mostPlayed: '最常播放',
     radio: '网络电台',
     libraryScope: '资料库范围',
     allLibraries: '所有资料库',
@@ -773,6 +774,16 @@ export const zhTranslation = {
     metaSaved: '播放列表已更新',
     downloadZip: '下载 (ZIP)',
   },
+  mostPlayed: {
+    title: '最常播放',
+    topArtists: '热门艺术家',
+    topAlbums: '热门专辑',
+    plays: '播放 {{n}} 次',
+    sortMost: '最多播放在前',
+    sortLeast: '最少播放在前',
+    loadMore: '加载更多专辑',
+    noData: '暂无播放数据，开始聆听吧！',
+  },
   radio: {
     title: '网络电台',
     empty: '未配置任何电台。',