feat(db): add tracks table and lyric scan caching

src/lib/library/lyricScanner.ts

@@ -5,6 +5,7 @@
 import { readDir, exists, readFile } from '@tauri-apps/plugin-fs';
 import { parseBuffer } from 'music-metadata';
 import type { AudioFormat } from '$lib/types/track';
+import { upsertTrack, getTracksWithoutLyrics, type DbTrack } from '$lib/library/database';
 
 export interface TrackWithoutLyrics {
   path: string;
@@ -116,6 +117,7 @@ async function scanDirectoryForMissingLyrics(
 
 /**
  * Scan the music library for tracks without .lrc files
+ * Results are cached in the database
  */
 export async function scanForTracksWithoutLyrics(
   musicFolderPath: string,
@@ -129,9 +131,43 @@ export async function scanForTracksWithoutLyrics(
 
   await scanDirectoryForMissingLyrics(musicFolderPath, results);
 
+  // Save results to database
+  if (onProgress) {
+    onProgress(results.length, results.length, 'Caching results...');
+  }
+
+  for (const track of results) {
+    await upsertTrack({
+      path: track.path,
+      title: track.title,
+      artist: track.artist,
+      album: track.album,
+      duration: Math.round(track.duration),
+      format: track.format,
+      has_lyrics: false
+    });
+  }
+
   if (onProgress) {
     onProgress(results.length, results.length, `Found ${results.length} tracks without lyrics`);
   }
 
   return results;
 }
+
+/**
+ * Load cached tracks without lyrics from database
+ */
+export async function loadCachedTracksWithoutLyrics(): Promise<TrackWithoutLyrics[]> {
+  const dbTracks = await getTracksWithoutLyrics();
+
+  return dbTracks.map((track: DbTrack) => ({
+    path: track.path,
+    filename: track.path.split('/').pop() || track.path,
+    title: track.title,
+    artist: track.artist,
+    album: track.album,
+    duration: track.duration,
+    format: track.format as AudioFormat
+  }));
+}