- Fix preparation status calculation by ignoring cancelled orders, preventing false green 'stock ready' icon
- Update item prepared state when preparation order is marked as processed
- Automatically cancel unprepared preparation orders when intervention is canceled
- Send alert notification to stock managers when canceled intervention has already prepared orders
- Add alert banner with direct restock/cancellation action on preparation order detail views
- Prevent editing material switches or creating orders for canceled interventions
- Add and compile translations for FR, EN and NL
- Add comprehensive automated unit tests
