Fix delete song, CORS, and cleanup for local-first SQLite setup

- Fix delete song route: remove reference to non-existent audio_files table,
  use audio_url directly from songs table instead
- Fix CORS: allow 127.0.0.1 in addition to localhost in development mode
- Fix cleanup service: remove audio_files reference, use SQLite datetime syntax

server/src/services/cleanup.ts

@@ -1,5 +1,4 @@
 import { pool } from '../db/pool.js';
-import { getStorageProvider } from './storage/factory.js';
 
 export interface CleanupResult {
   deleted: number;
@@ -7,57 +6,17 @@ export interface CleanupResult {
 }
 
 export async function runCleanupJob(): Promise<CleanupResult> {
-  console.log('Starting audio file cleanup job...');
-
-  const result = await pool.query(
-    `SELECT af.id, af.song_id, af.storage_key, af.storage_provider
-     FROM audio_files af
-     WHERE af.expires_at < NOW()
-       AND af.deleted_at IS NULL`
-  );
-
-  if (result.rows.length === 0) {
-    console.log('No expired audio files to clean up');
-    return { deleted: 0, errors: 0 };
-  }
-
-  console.log(`Found ${result.rows.length} expired audio files`);
-
-  const storage = getStorageProvider();
-  let deleted = 0;
-  let errors = 0;
-
-  for (const audioFile of result.rows) {
-    try {
-      await storage.delete(audioFile.storage_key);
-
-      await pool.query(
-        'UPDATE audio_files SET deleted_at = CURRENT_TIMESTAMP WHERE id = $1',
-        [audioFile.id]
-      );
-
-      await pool.query(
-        'UPDATE songs SET audio_url = NULL WHERE id = $1',
-        [audioFile.song_id]
-      );
-
-      deleted++;
-      console.log(`Deleted expired audio: ${audioFile.storage_key}`);
-    } catch (err) {
-      errors++;
-      console.error(`Failed to delete audio ${audioFile.storage_key}:`, err);
-    }
-  }
-
-  console.log(`Cleanup complete: ${deleted} deleted, ${errors} errors`);
-  return { deleted, errors };
+  // Local storage doesn't have expiring files - no cleanup needed
+  console.log('Cleanup job: No action needed for local storage');
+  return { deleted: 0, errors: 0 };
 }
 
 export async function cleanupDeletedSongs(): Promise<number> {
+  // Clean up songs without audio that are older than 7 days (SQLite syntax)
   const result = await pool.query(
     `DELETE FROM songs
      WHERE audio_url IS NULL
-       AND created_at < NOW() - INTERVAL '7 days'
+       AND created_at < datetime('now', '-7 days')
      RETURNING id`
   );