add adjustment depresiasi calculation and percentage depresiasi

internal/database/migrations/20260529144531_recalculate_economic_cutoff_25_weeks.down.sql

@@ -0,0 +1,22 @@
+-- Rollback: balik ke rule lama (19 minggu = 133 hari)
+
+BEGIN;
+
+UPDATE laying_transfers lt
+SET economic_cutoff_date = sub.cutoff_date,
+    updated_at = NOW()
+FROM (
+    SELECT
+        lt2.id AS transfer_id,
+        (MIN(pc.chick_in_date)::date + INTERVAL '133 days')::date AS cutoff_date
+    FROM laying_transfers lt2
+    JOIN project_chickins pc ON pc.project_flock_kandang_id = lt2.source_project_flock_kandang_id
+    WHERE lt2.deleted_at IS NULL
+      AND lt2.source_project_flock_kandang_id IS NOT NULL
+      AND pc.deleted_at IS NULL
+    GROUP BY lt2.id
+) sub
+WHERE lt.id = sub.transfer_id
+  AND lt.deleted_at IS NULL;
+
+COMMIT;