Still-picture songs save and play as audio plus one picture

server/db.js

@@ -291,6 +291,11 @@ export async function initDb() {
   await migrateVideoMeta();
   await initLyricsSearch();
   try { await db.execute('ALTER TABLE media_cache ADD COLUMN pinned INTEGER NOT NULL DEFAULT 0'); } catch { /* already migrated */ }
+  // Still-picture songs: still = NULL (not checked yet) | 0 | 1. A still copy
+  // also has <id>.<gen>.jpg, and devices may save just its m4a (audio_sha256).
+  for (const col of ['still INTEGER', 'audio_sha256 TEXT']) {
+    try { await db.execute(`ALTER TABLE media_cache ADD COLUMN ${col}`); } catch { /* already migrated */ }
+  }
   // Uploads shared from devices (PWA share target): who sent it, and whether it
   // is listed in everyone's search (admin uploads) or reachable only by link.
   for (const col of ['owner TEXT', 'listed INTEGER NOT NULL DEFAULT 1']) {
@@ -675,7 +680,7 @@ const MEDIA_COLS = new Set([
   'status', 'gen', 'size', 'height', 'vcodec', 'acodec', 'duration', 'optimized',
   'meta', 'priority', 'auto', 'attempts', 'error', 'retry_at', 'created_at',
   'updated_at', 'last_access', 'hits', 'sha256',
-  'pinned',
+  'pinned', 'still', 'audio_sha256',
 ]);
 
 function rowToObj(res, row) {