- Added roa_kill_user_sessions helper procedure
- Kill all active sessions BEFORE attempting DROP USER
- Improved company user detection (also checks for synonyms to CONTAFIN_ORACLE)
- Added more Oracle 21c internal users to exclusion list
- Better error handling and output messages
- Helper procedure auto-cleanup at end
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>