- Moved ERP credentials (URL, username, password) from environment variables to dbo_BIPUsers table
- Each user now has their own ERP configuration stored in the database
- Added UserErpConfigService for managing per-user ERP settings
- Updated cleaner and extractor handlers to fetch ERP config from database instead of .env
- Removed ERP fields from ConfigManager UI editable fields
- Added new IPC handlers and preload APIs for user ERP config management
- Includes migration script to transfer existing .env ERP settings to database
- Added migration guide documentation
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>