feat(albums): compilation filter toggle in All Albums

Tri-state button (all / only compilations / hide compilations) in the
Albums page header, using the OpenSubsonic isCompilation tag from
Navidrome. Client-side filter via useMemo, no extra server calls.
Closes #65.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/locales/de.ts

@@ -290,6 +290,12 @@ export const deTranslation = {
     yearTo: 'Bis',
     yearFilterClear: 'Jahresfilter zurücksetzen',
     yearFilterLabel: 'Jahr',
+    compilationLabel: 'Sampler',
+    compilationOnly: 'Nur Sampler',
+    compilationHide: 'Ohne Sampler',
+    compilationTooltipAll: 'Alle Alben · klicken: nur Sampler',
+    compilationTooltipOnly: 'Nur Sampler · klicken: Sampler ausblenden',
+    compilationTooltipHide: 'Sampler ausgeblendet · klicken: alle zeigen',
     select: 'Mehrfachauswahl',
     startSelect: 'Mehrfachauswahl aktivieren',
     cancelSelect: 'Abbrechen',

src/locales/en.ts

@@ -291,6 +291,12 @@ export const enTranslation = {
     yearTo: 'To',
     yearFilterClear: 'Clear year filter',
     yearFilterLabel: 'Year',
+    compilationLabel: 'Compilations',
+    compilationOnly: 'Only compilations',
+    compilationHide: 'Hide compilations',
+    compilationTooltipAll: 'All albums · click: only compilations',
+    compilationTooltipOnly: 'Only compilations · click: hide compilations',
+    compilationTooltipHide: 'Compilations hidden · click: show all',
     select: 'Multi-select',
     startSelect: 'Enable multi-select',
     cancelSelect: 'Cancel',

src/locales/es.ts

@@ -291,6 +291,12 @@ export const esTranslation = {
     yearTo: 'Hasta',
     yearFilterClear: 'Limpiar filtro de año',
     yearFilterLabel: 'Año',
+    compilationLabel: 'Recopilatorios',
+    compilationOnly: 'Solo recopilatorios',
+    compilationHide: 'Ocultar recopilatorios',
+    compilationTooltipAll: 'Todos los álbumes · clic: solo recopilatorios',
+    compilationTooltipOnly: 'Solo recopilatorios · clic: ocultar recopilatorios',
+    compilationTooltipHide: 'Recopilatorios ocultos · clic: mostrar todo',
     select: 'Selección múltiple',
     startSelect: 'Activar selección múltiple',
     cancelSelect: 'Cancelar',

src/locales/fr.ts

@@ -290,6 +290,12 @@ export const frTranslation = {
     yearTo: 'À',
     yearFilterClear: 'Effacer le filtre année',
     yearFilterLabel: 'Année',
+    compilationLabel: 'Compilations',
+    compilationOnly: 'Uniquement compilations',
+    compilationHide: 'Masquer compilations',
+    compilationTooltipAll: 'Tous les albums · clic : uniquement compilations',
+    compilationTooltipOnly: 'Uniquement compilations · clic : masquer compilations',
+    compilationTooltipHide: 'Compilations masquées · clic : tout afficher',
     select: 'Sélection multiple',
     startSelect: 'Activer la sélection multiple',
     cancelSelect: 'Annuler',

src/locales/nb.ts

@@ -290,6 +290,12 @@ export const nbTranslation = {
     yearTo: 'Til',
     yearFilterClear: 'Tøm år filteret',
     yearFilterLabel: 'År',
+    compilationLabel: 'Samleplater',
+    compilationOnly: 'Kun samleplater',
+    compilationHide: 'Skjul samleplater',
+    compilationTooltipAll: 'Alle album · klikk: kun samleplater',
+    compilationTooltipOnly: 'Kun samleplater · klikk: skjul samleplater',
+    compilationTooltipHide: 'Samleplater skjult · klikk: vis alle',
     select: 'Multivalg',
     startSelect: 'Aktiver multivalg',
     cancelSelect: 'Avbryt',

src/locales/nl.ts

@@ -289,6 +289,12 @@ export const nlTranslation = {
     yearTo: 'Tot',
     yearFilterClear: 'Jaarfilter wissen',
     yearFilterLabel: 'Jaar',
+    compilationLabel: 'Compilaties',
+    compilationOnly: 'Alleen compilaties',
+    compilationHide: 'Compilaties verbergen',
+    compilationTooltipAll: 'Alle albums · klik: alleen compilaties',
+    compilationTooltipOnly: 'Alleen compilaties · klik: compilaties verbergen',
+    compilationTooltipHide: 'Compilaties verborgen · klik: toon alles',
     select: 'Meervoudige selectie',
     startSelect: 'Meervoudige selectie inschakelen',
     cancelSelect: 'Annuleren',

src/locales/ru.ts

@@ -301,6 +301,12 @@ export const ruTranslation = {
     yearTo: 'По',
     yearFilterClear: 'Сбросить год',
     yearFilterLabel: 'Год',
+    compilationLabel: 'Сборники',
+    compilationOnly: 'Только сборники',
+    compilationHide: 'Скрыть сборники',
+    compilationTooltipAll: 'Все альбомы · клик: только сборники',
+    compilationTooltipOnly: 'Только сборники · клик: скрыть сборники',
+    compilationTooltipHide: 'Сборники скрыты · клик: показать всё',
     select: 'Множественный выбор',
     startSelect: 'Включить множественный выбор',
     cancelSelect: 'Отмена',

src/locales/zh.ts

@@ -289,6 +289,12 @@ export const zhTranslation = {
     yearTo: '到',
     yearFilterClear: '清除年份筛选',
     yearFilterLabel: '年份',
+    compilationLabel: '合辑',
+    compilationOnly: '仅合辑',
+    compilationHide: '隐藏合辑',
+    compilationTooltipAll: '所有专辑 · 点击：仅合辑',
+    compilationTooltipOnly: '仅合辑 · 点击：隐藏合辑',
+    compilationTooltipHide: '已隐藏合辑 · 点击：显示全部',
     select: '多选',
     startSelect: '启用多选',
     cancelSelect: '取消',