- MySQL 5.7 does not support CREATE TRIGGER IF NOT EXISTS
- Add DROP TRIGGER IF EXISTS before each CREATE TRIGGER in 004_hades.sql (69 triggers) and 002_dump.sql (90 triggers)
- DROP TRIGGER only removes trigger definition, does not affect table data
- Fixes ERROR 1359 (Trigger already exists) when dbinit Job runs multiple times
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>