- Add delete_bounties method to BountyService that returns individual results per bounty ID (deleted, not_found, permission_denied) - Update cmd_delete to accept multiple IDs and show per-ID messages - Add tests for delete_bounties Example output: /delete 1 2 3 ✅ Bounty #1 deleted. ✅ Bounty #2 deleted. ⛔ Bounty #3 not found. Fixes #47