fix: migration fifo v2

internal/database/migrations/20260228143207_disable_chickin_fifo_consumption.down.sql

@@ -2,12 +2,19 @@ BEGIN;
 
 -- Restore CHICKIN route if rollback is required.
 -- NOTE: released PROJECT_CHICKIN allocations are not restored by this down migration.
-UPDATE fifo_stock_v2_route_rules
-SET is_active = TRUE,
-    updated_at = NOW()
-WHERE flag_group_code = 'AYAM'
-  AND lane = 'USABLE'
-  AND function_code = 'CHICKIN_OUT'
-  AND source_table = 'project_chickins';
+DO $$
+BEGIN
+    IF to_regclass('public.fifo_stock_v2_route_rules') IS NOT NULL THEN
+        EXECUTE '
+            UPDATE fifo_stock_v2_route_rules
+            SET is_active = TRUE,
+                updated_at = NOW()
+            WHERE flag_group_code = ''AYAM''
+              AND lane = ''USABLE''
+              AND function_code = ''CHICKIN_OUT''
+              AND source_table = ''project_chickins''
+        ';
+    END IF;
+END $$;
 
 COMMIT;