Delete .lrc and .txt sidecar files when removing tracks from disk

Track and album delete with file removal now also cleans up associated
lyrics sidecar files (.lrc synced, .txt plain) that share the same
base filename as the audio file. Fixes #322

web_server.py

@@ -15012,6 +15012,16 @@ def library_delete_track(track_id):
                         os.remove(resolved)
                         file_deleted = True
                         logger.info(f"Deleted file from disk: {resolved}")
+                        # Clean up sidecar files (.lrc, .txt lyrics, cover.jpg)
+                        base_no_ext = os.path.splitext(resolved)[0]
+                        for sidecar_ext in ('.lrc', '.txt'):
+                            sidecar = base_no_ext + sidecar_ext
+                            if os.path.exists(sidecar):
+                                try:
+                                    os.remove(sidecar)
+                                    logger.info(f"Deleted sidecar file: {sidecar}")
+                                except Exception:
+                                    pass
                     except Exception as e:
                         logger.warning(f"Failed to delete file: {e}")
                         file_error = str(e)
@@ -15799,6 +15809,15 @@ def library_delete_album(album_id):
                         try:
                             os.remove(resolved)
                             files_deleted += 1
+                            # Clean up sidecar files (.lrc, .txt lyrics)
+                            base_no_ext = os.path.splitext(resolved)[0]
+                            for sidecar_ext in ('.lrc', '.txt'):
+                                sidecar = base_no_ext + sidecar_ext
+                                if os.path.exists(sidecar):
+                                    try:
+                                        os.remove(sidecar)
+                                    except Exception:
+                                        pass
                         except Exception as e:
                             logger.warning(f"Failed to delete track file: {e}")
                             files_failed += 1