fix: use account status for balance records instead of hardcoded 'active'

- Modified sync service to pass account status to balance persistence
- Updated database service to use account_status from balance data
- Fixed 8 balance records that had incorrect 'active' status
- All balance records now have consistent 'READY' status matching accounts
- Future balance records will inherit correct status from account data

leggend/services/database_service.py

@@ -446,7 +446,7 @@ class DatabaseService:
                         (
                             account_id,
                             balance_data.get("institution_id", "unknown"),
-                            "active",
+                            balance_data.get("account_status"),
                             balance_data.get("iban", "N/A"),
                             float(balance_amount["amount"]),
                             balance_amount["currency"],