fix improperly ported metadata logic

src/stores/settingsStore.ts

@@ -9,6 +9,7 @@ import type { ArtistGroupingMode } from '@/library/artistGrouping';
  * subscribes here to recompute the artist list when the grouping mode changes.
  */
 const ARTIST_GROUPING_KEY = 'artist_grouping_mode';
+const INCLUDE_SINGLES_KEY = 'album_include_singles';
 const SCOPE_MODE_KEY = 'scope_mode';
 const SCOPE_STAGE_VISIBLE_KEY = 'scope_stage_visible';
 
@@ -29,17 +30,21 @@ function parseBoolean(value: string | null): boolean {
 
 interface SettingsStore {
   artistGroupingMode: ArtistGroupingMode;
+  /** Show 1-track albums in the Albums view (desktop parity default: hidden). */
+  includeSingles: boolean;
   scopeMode: ScopeMode;
   scopeStageVisible: boolean;
   loaded: boolean;
   load: () => Promise<void>;
   setArtistGroupingMode: (mode: ArtistGroupingMode) => Promise<void>;
+  setIncludeSingles: (include: boolean) => Promise<void>;
   setScopeMode: (mode: ScopeMode) => Promise<void>;
   setScopeStageVisible: (visible: boolean) => Promise<void>;
 }
 
 export const useSettingsStore = create<SettingsStore>((set, get) => ({
   artistGroupingMode: 'astra',
+  includeSingles: false,
   scopeMode: 'spectrum',
   scopeStageVisible: false,
   loaded: false,
@@ -47,13 +52,15 @@ export const useSettingsStore = create<SettingsStore>((set, get) => ({
   load: async () => {
     if (get().loaded) return;
     const db = await openLibraryDb();
-    const [grouping, scope, scopeStageVisible] = await Promise.all([
+    const [grouping, includeSingles, scope, scopeStageVisible] = await Promise.all([
       getSetting(db, ARTIST_GROUPING_KEY),
+      getSetting(db, INCLUDE_SINGLES_KEY),
       getSetting(db, SCOPE_MODE_KEY),
       getSetting(db, SCOPE_STAGE_VISIBLE_KEY),
     ]);
     set({
       artistGroupingMode: parseGroupingMode(grouping),
+      includeSingles: parseBoolean(includeSingles),
       scopeMode: parseScopeMode(scope),
       scopeStageVisible: parseBoolean(scopeStageVisible),
       loaded: true,
@@ -67,6 +74,13 @@ export const useSettingsStore = create<SettingsStore>((set, get) => ({
     await setSetting(db, ARTIST_GROUPING_KEY, mode);
   },
 
+  setIncludeSingles: async (include) => {
+    if (get().includeSingles === include) return;
+    set({ includeSingles: include });
+    const db = await openLibraryDb();
+    await setSetting(db, INCLUDE_SINGLES_KEY, include ? 'true' : 'false');
+  },
+
   setScopeMode: async (mode) => {
     if (get().scopeMode === mode) return;
     set({ scopeMode: mode });