# Task List: Perbaikan Kalkulasi Umur Ayam

- [x] Persiapan Database (Add initial_age_days)
- [x] Update Model `Batch.php` (initial_age_days support & Edit Fix)
- [x] Update `BatchController.php` (Update method fixes)
- [x] Update View `admin/batch/index.php` (UI Edit Modal Fix)
- [x] Update View `admin/harvest/birds.php` (UI Display & JS)
- [x] Verifikasi Akhir (DOC vs Non-DOC)