- Change transaction_date cast to 'date:Y-m-d' in Transaction model
- Add transformFromServer to normalize dates when syncing from server
- Normalize dates in checkDuplicates method for consistent comparison
- Fix checkDuplicates to return boolean[] instead of debug objects
- Create CategoryType enum (income, expense, transfer)
- Add type column to categories table with default 'expense'
- Update Category model to cast type field to CategoryType enum
Víctor Falcón