## Advanced Features Power-user features for monitoring and automation. ### Tasks - [ ] #22 Watch command (monitoring) - [ ] #23 Notifications (Telegram, Desktop) - [ ] #24 Config command - [ ] #25 Categories command - [ ] #26 Export command ### Acceptance Criteria - `whcli watch "rtx" --notify telegram` monitors for new listings - Notifications work on Telegram and Desktop - Config persists user preferences