schdule /3 bulan dan tambah metadata

dags/etl_food_security.py

@@ -2,7 +2,9 @@
 AIRFLOW DAG — ETL Food Security BigQuery
 Kimball Data Warehouse Architecture
 
-Schedule : Setiap 3 hari sekali (timedelta(days=3))
+Schedule : Setiap 3 bulan sekali (tanggal 1, pukul 00:00)
+           Cron: "0 0 1 */3 *"
+           -> 1 Jan, 1 Apr, 1 Jul, 1 Okt
 Catchup  : False
 
 Kimball ETL Flow:
@@ -72,7 +74,8 @@ from scripts.bigquery_dimensional_model import (
 from scripts.bigquery_analytical_layer import (
     run_analytical_layer,
 )
-from scripts.bigquery_aggregate_layer import (
+# FIXED: nama modul disesuaikan dengan nama file yang benar
+from scripts.bigquery_analysis_aggregation import (
     run_aggregation,
 )
 from scripts.bigquery_aggraget_fact_selected_layer import (
@@ -87,15 +90,23 @@ default_args = {
 }
 
 # DAG DEFINITION
+#
+# schedule_interval = "0 0 1 */3 *"
+#   ┌───── menit   : 0
+#   │ ┌─── jam     : 0  (tengah malam)
+#   │ │ ┌─ hari    : 1  (tanggal 1 setiap bulan yang cocok)
+#   │ │ │  ┌ bulan : */3 (setiap 3 bulan -> Jan, Apr, Jul, Okt)
+#   │ │ │  │  ┌ hari minggu : * (semua)
+#   0 0 1 */3 *
 
 with DAG(
     dag_id            = "etl_food_security_bigquery",
-    description       = "Kimball ETL: FAO, World Bank, UNICEF → BigQuery (Bronze → Silver → Gold)",
+    description       = "Kimball ETL: FAO, World Bank, UNICEF → BigQuery (Bronze → Silver → Gold) | Schedule: setiap 3 bulan",
     default_args      = default_args,
-    start_date        = datetime(2026, 3, 1),
-    schedule_interval = "0 0 */3 * *",
+    start_date        = datetime(2026, 1, 1),
+    schedule_interval = "0 0 1 */3 *",   # Setiap 3 bulan sekali
     catchup           = False,
-    tags              = ["food-security", "bigquery", "kimball"],
+    tags              = ["food-security", "bigquery", "kimball", "quarterly"],
 ) as dag:
 
     task_verify = PythonOperator(