- Fix bd-tnsq: executeDelete now sets closed_at=NULL when creating tombstones, satisfying the CHECK constraint that requires closed_at IS NULL when status != 'closed' - Fix bd-08ea: cleanup command now also prunes expired tombstones (older than 30 days) after converting closed issues to tombstones - Add regression test for batch deletion of closed issues 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>