initial scaffold

src/stores/libraryStore.ts

@@ -0,0 +1,30 @@
+import { create } from 'zustand';
+import type { Album, Artist, DbTrack } from '@/types/library';
+
+/**
+ * Library state — minimal M0 stub. Real on-device scanning + SQLite (op-sqlite)
+ * land at M1; the shapes here mirror desktop `libraryStore` so that work slots in.
+ */
+type ViewMode = 'tracks' | 'albums' | 'artists' | 'folders';
+
+interface LibraryStore {
+  tracks: DbTrack[];
+  albums: Album[];
+  artists: Artist[];
+  totalTrackCount: number;
+  viewMode: ViewMode;
+  isScanning: boolean;
+
+  setViewMode: (mode: ViewMode) => void;
+}
+
+export const useLibraryStore = create<LibraryStore>((set) => ({
+  tracks: [],
+  albums: [],
+  artists: [],
+  totalTrackCount: 0,
+  viewMode: 'albums',
+  isScanning: false,
+
+  setViewMode: (viewMode) => set({ viewMode }),
+}));