feat(BE-#270): Project flock period change to project_flock_kandangs

internal/database/migrations/20251117092514_adjustment_projectflock_period.up.sql

@@ -0,0 +1,29 @@
+BEGIN;
+
+ALTER TABLE project_flock_kandangs
+    ADD COLUMN IF NOT EXISTS period INT;
+
+UPDATE project_flock_kandangs pfk
+SET period = pf.period
+FROM project_flocks pf
+WHERE pfk.project_flock_id = pf.id
+  AND (pfk.period IS NULL OR pfk.period = 0)
+  AND pf.period IS NOT NULL;
+
+ALTER TABLE project_flock_kandangs
+    ALTER COLUMN period SET DEFAULT 0;
+
+UPDATE project_flock_kandangs
+SET period = 0
+WHERE period IS NULL;
+
+ALTER TABLE project_flock_kandangs
+    ALTER COLUMN period SET NOT NULL;
+
+-- Drop period from project_flocks as the source of truth
+DROP INDEX IF EXISTS project_flocks_base_period_unique;
+
+ALTER TABLE project_flocks
+    DROP COLUMN IF EXISTS period;
+
+COMMIT;