add monitor sync jobs and duplicate-safe qobuz updates

.env.example

@@ -4,6 +4,7 @@ SPOTIFY_SCOPES=playlist-read-private,playlist-read-collaborative,user-library-re
 QTRANSFER_SPOTIFY_MANUAL_CODE=true
 QTRANSFER_SESSION_FILE=~/.config/qtransfer/session.json
 QTRANSFER_REMEMBER_CREDS=true
+QTRANSFER_CONFIG=
 
 QOBUZ_USERNAME=
 QOBUZ_PASSWORD=
@@ -21,3 +22,5 @@ QTRANSFER_MONITOR=false
 QTRANSFER_MONITOR_ONCE=false
 QTRANSFER_MONITOR_TRANSFER=false
 QTRANSFER_MONITOR_INTERVAL=5m
+QTRANSFER_SYNC_MODE=append
+QTRANSFER_TARGET_PLAYLIST_ID=0