Full case data migration tool with 3 console commands:
- data-migration-export: exports all case-related entities (27 types) + files
- data-migration-import: restores backup to target DB with dry-run support
- data-migration-status: shows entity counts from live DB or backup
Supports preserve-ids, skip-duplicates, batch processing, and attachment
file copying. Imports with hooks disabled to prevent side effects.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
