update sync data from site dashboard and testing closing cycles

backend/.env.example

@@ -22,11 +22,9 @@ BOOTSTRAP_ADMIN_PASSWORD=
 BOOTSTRAP_STAFF_USER=
 BOOTSTRAP_STAFF_PASSWORD=
 
-# City-edge syncs off at HQ (mirror via active-sites instead)
-KARUNG_WEB_ADMIN_SYNC_ENABLED=false
-IOT_SYNC_ENABLED=false
-CHICKEN_COUNTING_EDGE_COUNTING_SYNC_ENABLED=false
-CHICKEN_COUNTING_EDGE_MORTALITY_SYNC_ENABLED=false
+# HQ mirror pull from farm pusat export APIs (ops + IoT)
+ACTIVE_SITE_MIRROR_SYNC_ENABLED=true
+ACTIVE_SITE_MIRROR_CLOSED_LIMIT=3
 
 DASHBOARD_PUBLISH_HOUR=17
 DASHBOARD_PUBLISH_MINUTE=0